Patent Publication Number: US-2023151496-A1

Title: Novel corrosion inhibition package

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of U.S. Pat. Application No. 16/465,665, filed May 31, 2019, which is a national stage application under 35 U.S.C. 371 and claims the benefit of PCT Application No. PCT/CA2017/000256 having an international filing date of 30 Nov. 2017, which designated the United States, which PCT application claimed the benefit of Canada Patent Application No. 2,950,370 filed 02 Dec. 2016, the disclosure of each of which are incorporated herein by reference. 
    
    
     FIELD OF THE INVENTION 
     This invention relates to corrosion inhibition packages for use with acidic compositions, more specifically to corrosion inhibition packages for use with acidic composition wherein said package comprises a terpene component and at least one amphoteric surfactant. 
     BACKGROUND OF THE INVENTION 
     In the oil &amp; gas industry, stimulation with an acid is performed on a well to increase or restore production. In some instances, a well initially exhibits low permeability, and stimulation is employed to commence production from the reservoir. In other instances, stimulation or remediation is used to further encourage permeability and flow from an already existing well that has become under-productive. 
     Acidizing is a type of stimulation treatment which is performed above or below the reservoir fracture pressure in an effort to restore or increase the natural permeability of the reservoir rock. Acidizing is achieved by pumping acid into the well to dissolve typically limestone, dolomite and calcite cement between the sediment grains of the reservoir rocks or to treat scale accumulation. 
     There are three major types of acid applications: matrix acidizing, fracture acidizing, and breakdown acidizing (pumped prior to a fracturing pad or cement operation in order to assist with formation breakdown (reduce fracture pressures, increased feed rates), as well as clean up left over cement in the well bore or perforations. A matrix acid treatment is performed when acid is pumped into the well and into the pores of the reservoir formation below the fracture pressure. In this form of acidization, the acids dissolve the sediments formation and/or mud solids that are inhibiting the permeability of the rock, enlarging the natural pores of the reservoir (wormholing) and stimulating flow of hydrocarbons to the wellbore. While matrix acidizing is done at a low enough pressure to keep from fracturing the reservoir rock, fracture acidizing involves pumping highly pressurized acid into the well, physically fracturing the reservoir rock and etching the permeability inhibitive sediments. This type of acid treatment forms channels or fractures through which the hydrocarbons can flow, in addition to forming a series of wormholes. In some instances, a proppant is introduced into the fluid which assists in propping open the fractures, further enhancing the flow of hydrocarbons into the wellbore. 
     There are many different mineral and organic acids used to perform an acid treatment on wells. The most common type of acid employed on wells to stimulate production is hydrochloric acid (HCl), which is useful in stimulating carbonate reservoirs. 
     Some of the major challenges faced in the oil &amp; gas industry from using hydrochloric acid include the following: extremely high levels of corrosion (which is countered by the addition of ‘filming’ type corrosion inhibitors that are typically themselves toxic and harmful to humans, the environment and equipment) reactions between acids and various types of metals can vary greatly but softer metals, such as aluminum and magnesium, are very susceptible to major effects causing immediate damage. Hydrochloric acid produces Hydrogen chloride gas which is toxic (potentially fatal) and corrosive to skin, eyes and metals. At levels above 50 ppm (parts per million) it can be Immediately Dangerous to Life and Health (IDHL). At levels from 1300-2000 ppm death can occur in 2-3 minutes. 
     The inherent environmental effects (organic sterility, poisoning of wildlife etc.) of acids in the event of an unintended or accidental release on surface or downhole into water aquifers or other sources of water are devastating which can cause significant pH reduction of such and can substantially increase the toxicity and could potentially cause a mass culling of aquatic species and potential poisoning of humans or livestock and wildlife exposed to/or drinking the water. An unintended release at surface can also cause a hydrogen chloride gas cloud to be released, potentially endangering human and animal health. This is a common event at large storage sites when tanks split or leak. Typically if near the public, large areas need to be evacuated post event and a comprehensive, expensive to implement, emergency evacuation plan need to be in place prior to approval of such storage areas. Because of its acidic nature, hydrogen chloride gas is also corrosive, particularly in the presence of moisture. 
     The inability for acids and blends of such to biodegrade naturally without neutralizing the soil results in expensive cleanup-reclamation costs for the operator should an unintended release occur. Moreover, the toxic fumes produced by mineral &amp; some organic acids are harmful to humans/animals and are highly corrosive and/or produce potentially explosive vapours. Transportation and storage requirements for acids are restrictive and taxing in such that you must haul the products in acid approved tankers or intermediate bulk containers (IBC) that are rated to handle such corrosive products. As well, the dangers surrounding exposure by personnel handling the blending of such corrosive/dangerous products limits their use/implementation. 
     Another concern is the potential for exposure incidents on locations due to high corrosion levels of acids causing storage container failures and/or deployment equipment failures i.e. coiled tubing or fracturing iron failures caused by high corrosion rates (pitting, cracks, pinholes and major failures). Other concerns include: downhole equipment failures from corrosion causing the operator to have to execute a work-over and replace down hole pumps, tubing, cables, packers etc.; inconsistent strength or quality level of mineral &amp; organic acids; potential supply issues based on industrial output levels; high levels of corrosion on surface pumping equipment resulting in expensive repair and maintenance levels for operators and service companies; the requirement of specialized equipment that is purpose built to pump acids greatly increasing the capital expenditures of operators and service companies; and the inability to source a finished product locally or very near its end use; transportation and onsite storage difficulties. 
     Extremely high corrosion and reaction rates with temperature increase causes conventional acids to “spend/react or become neutral” prior to achieving its desired effect such as deeply penetrating an oil or gas formation to increase the wormhole or etched “pathway” effectively to allow the petroleum product to flow freely to the wellbore. As an example, hydrochloric acid can be utilized in an attempt to free stuck drill pipe in some situations. Prior to getting to the required depth to dissolve the formation that has caused the pipe/tubing to become stuck many acids spend or neutralize due to increased bottom hole temperatures and greatly increased reaction rate, so it is advantageous to have an alternative that spends or reacts more methodically allowing the slough to be treated with a solution that is still active, allowing the pipe/tubing to be pulled free. 
     When used to treat scaling issues on surface due to water contamination, conventional acids are exposed to human and mechanical devices as well as expensive pumping equipment causing increased risk for the operator and corrosion effects that damage equipment and create hazardous fumes. When mixed with bases or higher pH fluids, acids will create a large amount of thermal energy (exothermic reaction) causing potential safety concerns and equipment damage, acids typically need to be blended with fresh water (due to their intolerance of highly saline water, causing potential precipitation of minerals) to the desired concentration requiring companies to pre-blend off-site as opposed to blending on-site with field/produced water thereby increasing costs associated with transportation. 
     Conventional mineral acids used in a pH control situation can cause rapid degradation of certain polymers/additives requiring increased loadings or chemicals to be added to counter these negative effects. Many offshore areas of operations have very strict regulatory rules regarding the transportation/handling and deployment of acids causing increased liability and costs for the operator. When using an acid to pickle tubing or pipe, very careful attention must be paid to the process due to high levels of corrosion, as temperatures increase, the typical additives used to control corrosion levels in acid systems begin to degrade very quickly (due to the inhibitors “plating out” on the steel) causing the acids to become very corrosive and resulting in damage to downhole equipment/tubulars. Conventional acids are also very destructive to most elastomers found in the oil &amp; gas industry such as those found in blow out preventers (BOP’s) /downhole tools/packers/submersible pumps/seals etc. Having to deal with spent acid during the back flush process is also very expensive as these acids typically are still at a low pH and remain toxic. It is advantageous to have an acid blend that can be exported to production facilities through pipelines that, once spent or applied, is much higher than that of spent HCl, reducing disposal costs/fees. 
     Acids perform many actions in the oil &amp; gas industry and are considered necessary to achieve the desired production of various petroleum wells, maintain their respective systems and aid in certain drilling operational functions (i.e. freeing stuck pipe, filter cake treatments). The associated dangers that come with using mineral acids are expansive and tasking to mitigate through controls whether they are chemically or mechanically engineered 
     Eliminating or even simply reducing the negative effects of acids while maintaining their usefulness is a struggle for the industry. As the public demand for the use of cleaner/safer/greener products increases, companies are looking for alternatives that perform the required function without all or most of the drawbacks associated with the use of conventional acids. 
     Several operations in the oil industry expose fluids to very high temperatures (some upward of 220° C./392° F.), the compositions used in these various operations need to withstand high temperatures without losing their overall effectiveness. These compositions must also be capable of being applied in operations over a wide range of temperatures while not or at least minimally affecting or corroding the equipment with which it comes in contact in comparison to a conventional mineral acid. 
     Offshore oil and gas operations are highly regulated due to the environmental concerns which arise from their operations and the potential for spills. The complexity of drilling and completing offshore wells is compounded by both safety issues for workers on such offshore oil rigs and production platforms as well as environmental concerns. 
     Many countries bordering the waters where offshore drilling and production is routinely carried out have put into play a number of regulations aimed at minimizing the environmental impact of this practice. These regulations include the ban on certain types of chemicals which may be harmful to marine life and the environment. In order to overcome these very restrictive regulations, many oil companies employ very costly containment programs for the handling of certain chemicals such as acids which have a wide array of uses in the industry of oil and gas exploration and production. 
     Many of the issues related with offshore oil and gas exploration and production stem from the fact that the conditions under which this is carried out are substantially different than those encountered in the same types of operations carried out onshore. 
     Acidic compositions conventionally used in various oil and gas operations can reach temperatures of up to 220° C. At these temperatures, their reactivity is exponentially increased and, as such, their effectiveness or even their ability to be utilized is greatly decreased. Corrosion is the major concern at high temperatures and is difficult and expensive to control with additional chemistry. 
     Modified and synthetic acids developed and currently patented are aimed at increasing personnel safety, reducing corrosion effects, reducing environmental damage, retarding the reaction rate and reducing the toxicity profile of HCl. However, it has been found that at temperatures above 90° C. the urea component in a synthetic or modified acid containing such compound tends to ultimately decompose to ammonia and carbon dioxide. The ammonia component will neutralize the acidic component or HCl and render the product non-reactive or neutral. Additionally, there is the risk of wellbore and/or formation damage due to uncontrolled solubilized mineral precipitation due to an increase in the pH caused mainly by the formation of ammonia during the decomposition phase. The advent of newer synthetic or modified acids is intended on providing usage at higher temperatures while still maintaining the performance, safety and environmental advantages and benefits of a urea-HCL modified or synthetic acid system. However, ultimately at these higher temperatures it is most often necessary to utilize additional or purpose developed corrosion inhibition packages and/or components to control corrosion of exposed steel. In that respect, even short exposure times at high temperature are more damaging to steel than longer exposure times at lower temperatures. In keeping with the changing times, there is also a strong desire to develop corrosion packages which are more “environmentally friendly and more effective” than conventional packages. 
     EP patent application 1 724 375 A2 discloses an aqueous organic acid composition containing a terpene as corrosion inhibitor intensifier said to be especially suitable for use in acidizing subterranean formations and wellbores. The composition is said to substantially reduce the corrosive effects of the acidic solution on metals in contact with the acidic solution. Suitable terpenes are said to include carotene, limonene, pinene, farnesene, camphor, cymene and menthol. 
     U.S. Pat. No. 8,765,021 teaches an aqueous treatment composition for inhibiting corrosion and acid attack on metallic surfaces that comprises a thiourea organic derivative, a polyalkoxylated terpene nonionic surfactant and an acid. The invention also relates to a process for cleaning industrial metallic equipment, in particular heat exchangers in which a heat transfer fluid, generally based on air or on water, flows, with a view to cleaning them and removing scale and other soiling. 
     U.S. Pat. Application No. 2003/0166472 discloses a well treatment microemulsion that is formed by combining a solvent-surfactant blend with a carrier fluid. In preferred embodiments, the solvent-surfactant blend includes a surfactant and a solvent selected from the group consisting of terpenes and alkyl or aryl esters of short chain alcohols. The disclosed well treatment microemulsion can be used in well remediation, stimulation and hydrogen sulfide mitigation operations. 
     U.S. Pat. No. 8,323,417 teaches a method of treatment for inhibiting sulfur-based corrosion or scaling or for removing scaling from a surface including inhibiting corrosion caused by sulfur-containing materials, reducing corrosion caused by sulfur-containing materials, inhibiting scaling caused by sulfur-containing materials in gas, liquid or solid phase or any combination of multiple phases of materials, reducing scaling caused by sulfur-containing materials, and removing scaling caused by sulfur-containing materials. The method involves contacting sulfur-containing materials with a composition containing a turpentine liquid, wherein said turpentine liquid comprises α-terpineol, β-terpineol, β-pinene, and p-cymene. 
     U.S. Pat. Application No. 2006/0264335 A1 discloses an aqueous organic acid composition containing a terpene as corrosion inhibitor intensifier is especially suitable for use in acidizing subterranean formations and wellbores. The composition substantially reduces the corrosive effects of the acidic solution on metals in contact with the acidic solution. Suitable terpenes are said to include carotene, limonene, pinene, farnesene, camphor, cymene and menthol. 
     U.S. Pat. No. 5,674,823 discloses novel derivatives of terpene origin which consist of cycloalkenyls or cycloalkyls having at least seven carbon atoms and possessing surfactant and/or fragrant properties. According to one embodiment, the invention relates to compounds of characteristic formula I in which p and q are integers or decimal numbers and are not equal to zero, O&lt;P&lt;20, preferably, O&lt;P&lt;5, and O&lt;q&lt;100, preferably 1&lt;q&lt;20. It is stated that the invention has particular applicability in detergent and perfume formulations. 
     Despite the various known corrosion inhibition packages, there is still a need for corrosion inhibition packages for use with modified and synthetic acid compositions in the oil industry which can be used over a range of applications, that are specifically formulated for synthetic and modified acid systems and can be used at ultra-high temperatures (i.e. 220° C.) without having its components degrade, phase out of solution and have a superior safety and environmental profile over known packages during use at those ultra-high temperatures. Moreover, it is desirable to have corrosion inhibition packages that do not undermine the advantages of environmentally and personnel-friendly acid compositions such as various synthetic and modified acid compositions which have fewer deleterious effects than typical conventional mineral and some organic acids. Some advantages of so-called environmentally friendly acid compositions include: 
     It was unexpectedly discovered that the corrosion inhibition packages according to the present invention exhibit stability when combined with acidic compositions under exposure to elevated temperature (above 150° C. and even up to at least 220° C.). This consequently makes them useful in various industries using acids at these temperatures including, but not limited to, the oil and gas industry. 
     SUMMARY OF THE INVENTION 
     According to a first aspect of the present invention, there is provided a corrosion inhibition package for use with an aqueous acid composition, said package comprising:
     a terpene;   a propargyl alcohol or derivative thereof;   at least one amphoteric surfactant; and   a solvent.   

     Preferably, the terpene is selected from the group consisting of: citral; ionone; ocimene; and cymene. 
     Preferably, the at least one amphoteric surfactant is selected from the group consisting of: a sultaine surfactant; a betaine surfactant; and combinations thereof. More preferably, the sultaine surfactant and betaine surfactant are selected from the group consisting of: an amido betaine surfactant; an amido sultaine surfactant; and combinations thereof. Yet even more preferably, the amido betaine surfactant is selected from the group consisting of: an amido betaine comprising a hydrophobic tail from C8 to C16. Most preferably, the amido betaine comprising a hydrophobic tail from C8 to C16 is cocamidobetaine. 
     Preferably also, the corrosion inhibition package further comprises an anionic surfactant. Preferably, the anionic surfactant is a carboxylic surfactant or a sulfonic surfactant. More preferably, the carboxylic surfactant is a dicarboxylic surfactant. Even more preferably, the dicarboxylic surfactant comprises a hydrophobic tail ranging from C8 to C16. Most preferably, the dicarboxylic surfactant is sodium lauriminodipropionate When the anionic surfactant is a sulfonic surfactant, it is preferably a disulfonic surfactant, such as a surfactant from the DOWFAX ®  class of surfactant from DOW Chemicals. 
     Preferably, the surfactant is selected from the group consisting of: cocamidopropyl betaine; β-Alanine, N-(2-carboxyethyl)-N-dodecyl-, sodium salt (1:1); and a combination thereof. 
     Preferably, the solvent is selected from the group consisting of: methanol; ethanol; isopropanol; ethylene glycol; Di-n-hexyl-ether; and 2-Butoxyethanol; and combinations thereof. 
     Preferably, the terpene is present in an amount ranging from 2% to 25% by weight of the total weight of the corrosion inhibition package. Preferably also, the propargyl alcohol or derivative thereof is present in an amount ranging from 20% to 55% by volume of the total weight of the corrosion inhibition package. Preferably also, the at least one surfactant is present in an amount ranging from 2% to 20% by volume of the total weight of the corrosion inhibition package. Preferably also, the solvent is present in an amount ranging from 10% to 45% by volume of the total weight of the corrosion inhibition package. 
     According to another aspect of the present invention, there is provided an acidic composition comprising:
     an acid;   a corrosion package comprising: 
   a terpene;   a propargyl alcohol or derivative thereof;   at least one surfactant; and   a solvent;   
   

     wherein the volume % of the corrosion package in the acidic composition ranges from 0.1 to 10%. Preferably, the acidic composition further comprises an intensifier selcecter from the group consisting of: metal iodides, metal iodates and formic acid. 
     Preferably the weight/volume % of the metal iodide or iodate in the acidic composition ranges from 0.1 to 1.5%. More preferably, the wt/vol. % of the metal iodide or iodate in the acidic composition ranges from 0.25 to 1.25%. Even more preferably, the wt/vol. % of the metal iodide or iodate in the acidic composition is approximately 1%. Preferably, the metal iodide or iodate selected from the group consisting of: cuprous iodide; potassium iodide; sodium iodide; lithium iodide and combinations thereof. More preferably, the metal iodide is potassium iodide. 
     According to one aspect of the present invention, there is provided an acidic composition comprising a corrosion inhibition package according to the invention and an acid selected from the group consisting of: mineral acids; organic acids, synthetic acids; and combinations thereof. More preferably, the acid is selected from the group consisting of: HCl, Lysine-HCl, Urea-HCl, hydrofluoric acid, sulfuric acid, phosphoric acid, p-toluene sulfonic acid. Even more preferably, the acid is lysine-HCl. 
     According to a preferred embodiment of the present invention, there is provided an aqueous synthetic acid composition for use in onshore oil and gas operations, said composition comprising: lysine and hydrochloric acid in a molar ratio of not less than 1:12; a surfactant; a corrosion inhibitor; and an intensifier. 
     According to a preferred embodiment of the present invention, there is provided an aqueous synthetic acid composition for use in offshore oil and gas operations, said composition comprising: lysine and hydrochloric acid in a molar ratio of not less than 1:12; a corrosion inhibitor; and an intensifier. 
     According to a preferred embodiment of the present invention, the corrosion inhibition package is used with an acidic composition such as a modified acid composition comprising:
     a strong acid and an alkanolamine in a molar ratio of not more than 15:1; preferably in a molar ratio not more than 10:1, more preferably in a molar ratio of not more than 8:1; even more preferably in a molar ratio of not more than 5:1; yet even more preferably in a molar ratio of not more than 3.5:1; and yet even more preferably in a molar ratio of not more than 2.5:1.   

     The use of a corrosion inhibitor package with an acidic composition where the acidic composition comprises an acid selected from the group consisting of: a mineral acid; an organic acid or a synthetic acid, said corrosion inhibitor package comprising:
     a terpene;   a propargyl alcohol or derivative thereof;   at least one amphoteric surfactant; and   a solvent.   

     According to another aspect of the present invention, there is provided a use of a synthetic or modified acid composition comprising a preferred embodiment of the present invention in the oil and gas industry to perform an activity selected from the group consisting of: stimulating formations; assisting in reducing breakdown pressures during downhole pumping operations; treating wellbore filter cake post drilling operations; assisting in freeing stuck pipe; descaling pipelines and/or production wells; increasing injectivity of injection wells; lowering the pH of a fluid; fracturing wells; performing matrix stimulations; conducting annular and bullhead squeezes &amp; soaks; pickling tubing, pipe and/or coiled tubing; increasing effective permeability of formations; reducing or removing wellbore damage; cleaning perforations, nozzles, ports, jets etc.; solubilizing limestone, dolomite, and calcite; and removing undesirable scale from the group consisting of: equipment, cyclical steam wells, steam flood wells, SAGD (steam assisted gravity drainage) wells, unassisted or natural high formation temperature production wells, injection wells and their related surface and down-hole equipment and facilities at high temperatures up to 220° C. 
     According to another aspect of the present invention, there is provided a synthetic or modified acid composition comprising a corrosion inhibition package according to a preferred embodiment for use in the oil and gas industry which has high salinity tolerance. A tolerance for high salinity fluids, or brines, is desirable for onshore and offshore acid applications. Conventional acids are normally blended with fresh water and additives, typically far offsite, and then transported to the area of treatment as a finished blend. It is advantageous to have an alternative that can be transported as a concentrate safely to the treatment area, then blended with a saline produced water or sea water. This greatly reduces logistics requirement. A conventional acid composition can precipitate salts/minerals heavily if blended with fluids of an excessive saline level resulting in formation plugging or ancillary damage, inhibiting production and substantially increasing costs. Brines are also typically present in formations, thus having an acidic composition system that has a high tolerance for brines greatly reduces the potential for formation damage or emulsions forming down-hole during or after product placement/spending (reaction) occurs. 
     A preferred embodiment of the present invention provides a corrosion inhibition package which provides various oilfield grade steel alloys exceptional protection against corrosion when exposed to acidic compositions at low to ultra-high temperatures. Additionally, the components used in the preferred corrosion inhibition package are quite environmentally friendly. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The description that follows, and the embodiments described therein, is provided by way of illustration of an example, or examples, of particular embodiments of the principles of the present invention. These examples are provided for the purposes of explanation, and not limitation, of those principles and of the invention. 
     According to an aspect of the invention, there is provided a corrosion inhibition package for use with an acidic composition, said corrosion inhibition package comprising:
     a terpene;   a propargyl alcohol or derivative thereof;   at least one amphoteric surfactant; and   a solvent.   

     Preferably, the corrosion inhibition package is used with an acidic composition such as a synthetic acid composition comprising:
     lysine &amp; hydrogen chloride in a molar ratio of not less than 1:12; preferably in a molar ratio not less than 1:8, more preferably in a molar ratio of not less than 1:5, even more preferably in a molar ratio of not less than 1:3 and even more preferably in a molar ratio of not less than 1:2.5.   

     Preferably, when the synthetic or modified acid composition comprises lysine and hydrogen chloride, the molar ratio of lysine to HCl can range from 1:2 to 1:12; preferably in a molar ratio ranging from 1:2.5 to 1:8, more preferably in a molar ratio ranging from 1:3 to 1:6, even more preferably in a molar ratio ranging from 1:3 to 1:5. 
     Also, preferably, the corrosion inhibition package is used with an acidic composition such as a modified acid composition comprising:
     a strong acid and an alkanolamine in a molar ratio of not more than 15:1; preferably in a molar ratio not more than 10:1, more preferably in a molar ratio of not more than 8:1; even more preferably in a molar ratio of not more than 5:1; yet even more preferably in a molar ratio of not more than 3.5:1; and yet even more preferably in a molar ratio of not more than 2.5:1.   

     In that respect, the composition comprises an alkanolamine and a strong acid, such as HCl, nitric acid, sulfuric acid, sulfonic acid. The alkanolamine according to the present invention contains at least one amino group, —NH  2 , and one alcohol group, —OH. Preferred alkanolamines include, but are not limited to, monoethanolamine, diethanolamine and triethanolamine. More preferred are monoethanolamine, diethanolamine. Most preferred is monoethanolamine. 
     Alcohols and derivatives thereof, such as alkyne alcohols and derivatives and preferably propargyl alcohol and derivatives thereof can be used as corrosion inhibitors. Propargyl alcohol itself is traditionally used as a corrosion inhibitor which works well at low concentrations. It is however a very toxic/flammable chemical to handle as a concentrate, so care must be taken when exposed to the concentrate. In the composition according to the present invention, it is preferred to use 2-Propyn-1-ol, complexed with methyloxirane, as this is a much safer derivative to handle. Basocorr ®  PP is an example of such a compound. In preferred embodiments of the present invention, 2-Propyn-1-ol, complexed with methyloxirane is present in an amount ranging from 20% to 55% by volume of the total volume of the corrosion inhibition package. 
     The terpenes considered by the inventors to achieve desirable corrosion inhibition results comprise: monoterpenes (acyclic); monocyclic terpenes; and beta-Ionone. Exemplary but non-limiting compounds of some of the previously listed terpene sub-classes comprise: for monoterpenes: citral (mixture of geranial and neral); citronellal; geraniol; and ocimene; for monocyclic terpenes: alpha-terpinene; carvone; p-cymene. More preferably, the terpenes are selected from the group consisting of: citral; ionone; ocimene; and cymene. 
     According to a preferred embodiment of the present invention, the corrosion inhibition package comprises a surfactant which is environmentally friendly. More preferably, the surfactant is capable of withstanding exposure to temperatures of up to least 220° C. for a duration of 2 to 4 hours in a closed environment without undergoing degradation. 
     Preferably, the at least one amphoteric surfactant is selected from the group consisting of: a sultaine surfactant; a betaine surfactant; and combinations thereof. More preferably, the sultaine surfactant and betaine surfactant are selected from the group consisting of: an amido betaine surfactant; an amido sultaine surfactant; and combinations thereof. Yet even more preferably, the amido betaine surfactant and is selected from the group consisting of: an amido betaine comprising a hydrophobic tail from C8 to C16. Most preferably, the amido betaine comprising a hydrophobic tail from C8 to C16 is cocamidobetaine. 
     Preferably also, the corrosion inhibition package further comprises an anionic surfactant. Preferably, the anionic surfactant is a carboxylic surfactant. More preferably, the carboxylic surfactant is a dicarboxylic surfactant. Even more preferably, the dicarboxylic surfactant comprises a hydrophobic tail ranging from C8 to C16. Most preferably, the dicarboxylic surfactant is sodium lauriminodipropionate 
     Most preferred are embodiments of a corrosion inhibition package comprising cocamidopropyl betaine and β-Alanine, N-(2-carboxyethyl)-N-dodecyl-, sodium salt (1:1). 
     According to a preferred embodiment of the present invention, when preparing an acidic composition comprising a corrosion inhibition package, metal iodides or iodates such as potassium iodide, sodium iodide, cuprous iodide and lithium iodide can be added as corrosion inhibitor intensifier. The iodide or iodate is preferably present in a weight/volume percentage ranging from 0.1 to 1.5%, more preferably from 0.25 to 1.25%, yet even more preferably 1% by weight/volume of the acidic composition. Most preferably, the iodide used is potassium iodide. 
     According to a preferred embodiment of the present invention, the corrosion package comprises: 2-Propyn-1-ol, compd. with methyloxirane; β -Alanine, N-(2-carboxyethyl)-N-dodecyl-, sodium salt (1:1); cocamidopropyl betaine; (±)-3,7-Dimethyl-2,6-octadienal (Citral); and isopropanol. More preferably, the composition comprises 38.5% of 2-Propyn-1-ol, compd. with methyloxirane; 5% of β-Alanine, N-(2-carboxyethyl)-N-dodecyl-, sodium salt (1:1); 5% of cocamidopropyl betaine; 20% of (±)-3,7-Dimethyl-2,6-octadienal (Citral); and 31.5% of Isopropanol (all percentages are volume percentages). 
     Example 1 - Process to Prepare an Acidic Composition Comprising a Corrosion Inhibition Package According to a Preferred Embodiment of The Invention 
     Lysine mono-hydrochloride is used as starting reagent. To obtain a 1:2 molar ratio of lysine to HCl, 370 ml of 50 wt% lysine-HCl solution and 200 ml HCl aq. 36% (22 Baume) were combined. The corrosion inhibition package, and potassium iodide (if required) are added at this point. Circulation is maintained until all products have been solubilized. Additional products can now be added as required. 
     The corrosion inhibiton package is prepared by dispersing a terpene component in isopropanol, propargyl alcohol (preferably in the presence of methyloxirane) and two selected surfactants. Afterwards, the corrosion inhibition package thus prepared is mixed with an acidic composition. Applying this procedure, allows for the formation of a surfactant complex as described below. 
     According to a preferred embodiment of the present invention, since the corrosion inhibition package is intended for use at high temperatures, the combination of a betaine and a carboxylic surfactant is desirable. The combination of a carboxylic surfactant and a betaine is known to form a 1:1 or 1:2 complex, which has also a high molecular weight. Therefore, it is important to disperse the terpene component into isopropanol. Otherwise, the resulting acidic composition may not meet the class 1 fluid (transparent, no phase separation). 
     The resulting composition of Example 1 is an amber-colored liquid with a fermentation-like odour having an expected shelf-life of greater than a year. It has a freezing point temperature of approximately minus 45° C. and a boiling point temperature of approximately 100° C. It has a specific gravity of 1.15±0.02. It is completely soluble in water and its pH is less than 1. 
     The composition is biodegradable and is classified as a mild irritant according to the classifications for skin tests. The composition is substantially low fuming. Toxicity testing was calculated using surrogate information and the LD 50  was determined to be greater than 2000 mg/kg. 
     With respect to the corrosion impact of the acidic composition on typical oilfield grade steel alloys, it was established that it was clearly well below the acceptable corrosion limits set by industry making it highly desirable as corrosion is the main challenge during acid applications causing substantial maintenance and workover costs over time. 
     Corrosion Inhibition Package Formulations 
     Various types of steel alloy coupons were subjected to corrosion testing in the presence of synthetic and modified acid compositions using corrosion inhibitor components according to preferred embodiments of the present invention at various temperatures. The results of the corrosion tests are reported in Tables 9 through 26. The controls used were compositions of Lysine-HCl without corrosion inhibition additives or MEA-HCl without corrosion inhibitor additives. Coupons of various grades of steel alloys (indicated in each table) were exposed to the various listed compositions for various periods of time at varying temperatures. When the fluid system is diluted, it is so indicated in the table or title. For example, 50% indicates that the fluid system was diluted to half strength with tap water. Also, 50% seawater indicates that the fluid system was diluted to half strength with seawater (or an equivalent brine solution).  
     
       
         
          TABLE 1
           
               
               
               
               
               
               
               
             
               
                 List of Component and Content in Corrosion Inhibition Packages FCI-A to FCI-F 
               
               
                 Component 
                 FCI-A 
                 FCI-B 
                 FCI-C 
                 FCI-D 
                 FCI-E 
                 FCI-F 
               
             
            
               
                 2-Propyn-1-ol, compd. with methyloxirane 
                 34 
                 38.5 
                 38.5 
                 38.5 
                 34 
                 45 
               
               
                 4-Ethyloct-1-yn-3-ol 
                 4.5 
                   
                   
                   
                 4.5 
                   
               
               
                 β -Alanine, N-(2-carboxyethyl)-N-dodecyl-, sodium salt (1:1) 
                 10 
                 10 
                 10 
                 5 
                 5 
                 5 
               
               
                 Cocamidopropyl betaine 
                 10 
                 10 
                 10 
                 5 
                 5 
                 5 
               
               
                 (±)-3,7-Dimethyl-2,6-octadienal (Citral) 
                 3 
                 3 
                 10 
                 20 
                 20 
                 20 
               
               
                 Isopropanol 
                 38.5 
                 38.5 
                 31.5 
                 31.5 
                 31.5 
                 25 
               
               
                 Total vol. % 
                 100 
                 100 
                 100 
                 100 
                 100 
                 100 
               
            
           
         
       
     
     
       
         
          TABLE 2
           
               
               
               
               
               
               
               
             
               
                 List of Component and Content in Corrosion Inhibition Packages FCI-G to FCI-L 
               
               
                 Component 
                 FCI-G 
                 FCI-H 
                 FCI-I 
                 FCI-J 
                 FCI-K 
                 FCI-L 
               
             
            
               
                 2-Propyn-1-ol, compd. with methyloxirane 
                   
                 38.5 
                 38.5 
                 38.5 
                 38.5 
                 38.5 
               
               
                 β -Alanine, N-(2-carboxyethyl)-N-dodecyl-, sodium salt (1:1) 
                 5 
                 5 
                 5 
                 5 
                 5 
                 5 
               
               
                 Cocamidopropyl betaine 
                 5 
                 5 
                 5 
                 5 
                 5 
                 5 
               
               
                 (±)-3,7-Dimethyl-2,6-octadienal (Citral) 
                 20 
                   
                   
                   
                   
                   
               
               
                 3,7-Dimethyl-1,3,6-octatrien (Ocymen) 
                   
                   
                   
                   
                 20 
                   
               
               
                 trans-3,7-Dimethyl-2,6-octadien-1-ol (Geraniol) 
                   
                   
                   
                   
                   
                 20 
               
               
                 p-Cymene 
                   
                   
                 20 
                   
                   
                   
               
               
                 4-(2,6,6=Trimethyl-2-cyclohexenyl0-3-buten-2-one (β -Ionone) 
                   
                 20 
                   
                   
                   
                   
               
               
                 Isopropanol 
                 70 
                 31.5 
                 31.5 
                 51.5 
                 31.5 
                 31.5 
               
               
                 Total vol. % 
                 100 
                 100 
                 100 
                 100 
                 100 
                 100 
               
            
           
         
       
     
     
       
         
          TABLE 3
           
               
               
               
               
               
               
               
             
               
                 List of Components and Content in Corrosion Inhibition Packages FCI-M to FCI-R 
               
               
                 Component 
                 FCI-M 
                 FCI-N 
                 FCI-O 
                 FCI-P 
                 FCI-Q 
                 FCI-R 
               
             
            
               
                 2-Propyn-1-ol, compd. with methyloxirane 
                 38.5 
                 38.5 
                 38.5 
                 38.5 
                 38.5 
                 38.5 
               
               
                 β -Alanine, N-(2-carboxyethyl)-N-dodecyl-, sodium salt (1:1 
                 5 
                 5 
                 5 
                 5 
                 5 
                 5 
               
               
                 Cocamidopropyl betaine 
                 5 
                 5 
                 5 
                 5 
                 5 
                 5 
               
               
                 (±)-3,7-Dimethyl-2,6-octadienal (Citral) 
                   
                   
                   
                 20 
                 20 
                 20 
               
               
                 (±)-3,7-Dimethyl-6-octenal (Citronellal) 
                 20 
                   
                   
                   
                   
                   
               
               
                 p-Cymene 
                   
                   
                   
                   
                 10 
                   
               
               
                 1-Isopropyl-4methyl)-1,3-cyclohaxadiene (α-Terpinene) 
                   
                 20 
                   
                   
                   
                   
               
               
                 4-(2,6,6=Trimethyl-2-cyclohexenyl)-3-buten-2-one (β -Ionone) 
                   
                   
                   
                   
                   
                 10 
               
               
                 R-(-)-Carvone 
                   
                   
                 20 
                   
                   
                   
               
               
                 Isopropanol 
                 31.5 
                 31.5 
                 31.5 
                 20 
                 21.5 
                 21.5 
               
               
                 Di-n-hexyl-ether 
                   
                   
                   
                 11.5 
                   
                   
               
               
                 Total vol. % 
                 100 
                 100 
                 100 
                 100 
                 100 
                 100 
               
            
           
         
       
     
     
       
         
          TABLE 4
           
               
               
               
               
               
             
               
                 List of Component and Content in Corrosion Inhibition Packages FCI-S to FCI-V 
               
               
                 Component 
                 FCI-S 
                 FCI-T 
                 FCI-U 
                 FCI-V 
               
             
            
               
                 2-Propyn-1-ol, compd. with methyloxirane 
                 38.5 
                 38.5 
                 38.5 
                 38.5 
               
               
                 β -Alanine, N-(2-carboxyethyl)-N-dodecyl-, sodium salt (1:1) 
                   
                   
                   
                 5 
               
               
                 Cocamidopropyl betaine 
                   
                   
                 5 
                   
               
               
                 (±)-3,7-Dimethyl-2,6-octadienal (Citral) 
                 20 
                 20 
                 20 
                 20 
               
               
                 Isopropanol 
                 31.5 
                 41.5 
                 36.5 
                 36.5 
               
               
                 Di-n-hexyl-ether 
                 10 
                   
                   
                   
               
               
                 Total vol. % 
                 100 
                 100 
                 100 
                 100 
               
            
           
         
       
     
     
       
         
          TABLE 5
           
               
               
               
               
               
               
             
               
                 List of Components and Content in Corrosion Inhibition Packages FCI-B2 and FCI-B3 
               
               
                 Component 
                 FCI-B2 
                 FCI-B3 
                 FCI-B2a 
                 FCI-B2a(D) 
                 FCI-B2a(DM) 
               
             
            
               
                 2-Propyn-1-ol, compd. with methyloxirane 
                 38.5 
                 38.5 
                 45 
                 22.5 
                 22.5 
               
               
                 β -Alanine, N-(2-carboxyethyl)-N-dodecyl-, sodium salt (1:1) 
                 10 
                 10 
                 11.7 
                 5.85 
                   
               
               
                 Cocamidopropyl betaine 
                 10 
                 10 
                 11.7 
                 5.85 
                 5.85 
               
               
                 (±)-3,7-Dimethyl-2,6-octadienal (Citral) 
                 6 
                 8 
                 7 
                 3.5 
                 3.5 
               
               
                 Isopropanol 
                 35.5 
                 33.5 
                 24.6 
                 42.3 
                 48.15 
               
               
                 water 
                   
                   
                   
                 20 
                 20 
               
               
                 Total vol. % 
                 100 
                 100 
                 100 
                 100 
                 100 
               
            
           
         
       
     
     
       
         
          TABLE 6
           
               
               
               
               
               
             
               
                 List of Components and Content in Corrosion Inhibition Packages FCI-D2 to FCI-D5 
               
               
                 Component 
                 FCI-D2 
                 FCI-D3 
                 FCI-D4 
                 FCI-D5 
               
             
            
               
                 2-Propyn-1-ol, compd. with methyloxirane 
                 38.5 
                 38.5 
                 38.5 
                 38.5 
               
               
                 B-Alanine, N-(2-carboxyethyl)-N-dodecyl-, sodium salt (1:1) 
                 5 
                 5 
                 3 
                 5 
               
               
                 Cocamidopropyl betaine 
                 5 
                 0 
                 3 
                 5 
               
               
                 1 -Dodecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt and 1-Tetradecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt 
                   
                 5 
                   
                   
               
               
                 (±)-3,7-Dimethyl-2,6-octadienal (Citral) 
                 20 
                 20 
                 20 
                 15 
               
               
                 Isopropanol 
                 31.5 
                 31.5 
                 35.5 
                 36.5 
               
               
                 Total vol. % 
                 100 
                 100 
                 100 
                 100 
               
            
           
         
       
     
     
       
         
          TABLE 7
           
               
               
               
               
             
               
                 List of Components and Content in Corrosion Inhibition Packages FCI-D6 to FCI-D8 
               
               
                 Component 
                 FCI-D6 
                 FCI-D7 
                 FCI-D8 
               
             
            
               
                 2-Propyn-1-ol, compd. with methyloxirane 
                 38.5 
                 38.5 
                 38.5 
               
               
                 β-Alanine, N-(2-carboxyethyl)-N-dodecyl-, sodium salt (1:1) 
                 5 
                 7.5 
                 5 
               
               
                 Cocamidopropyl betaine 
                 5 
                 7.5 
                 5 
               
               
                 (±)-3,7-Dimethyl-2,6-octadienal (Citral) 
                 12.5 
                 10 
                 10 
               
               
                 Isopropanol 
                 39 
                 36.5 
                 41.5 
               
               
                 Total vol. % 
                 100 
                 100 
                 100 
               
            
           
         
       
     
     
       
         
          TABLE 8
           
               
               
               
               
             
               
                 List of Components and Content in Corrosion Inhibition Packages FCI-H2 and FCI-I2 
               
               
                 Compound 
                   
                 FCI-H2 
                 FCI-I2 
               
             
            
               
                 2-Propyn-1-ol, compd. with methyloxirane 
                 Vol. % 
                 38.5 
                 38.5 
               
               
                 β-Alanine, N-(2-carboxyethyl)-N-dodecyl-, sodium salt (1:1) 
                 Vol. % 
                 10 
                 10 
               
               
                 Cocamidopropyl betaine 
                 Vol. % 
                 10 
                 10 
               
               
                 p-Cymene 
                 Vol. % 
                   
                 6 
               
               
                 β-Ionone 
                 Vol. % 
                 6 
                   
               
               
                 Isopropanol 
                 Vol. % 
                 35.5 
                 35.5 
               
               
                 Total Vol. % 
                 100 
                 100 
               
            
           
         
       
     
     Corrosion Testing 
     The following corrosion testing outlined in the tables below for a number of different corrosion inhibition packages according to the present invention in the presence of a synthetic or modified acid composition was carried out diluted with saline water at a temperature of 150° C. (different temperatures were also used - these are indicated in the title of the tables where applicable) for an exposure period lasting 4 hour (some examples may have been carried out for shorter periods of time - these are also indicated in the title of the tables). A desirable result was one where the lb/ft 2  corrosion number is at or below 0.05. More preferably, that number is at or below 0.02. The acidic compositions also referred to as fluid or fluid systems, were also tested at various dilution ratios where 100% represents the undiluted fluid. All dilutions are done with tap water unless indicated otherwise.  
     
       
         
          TABLE #9
           
               
               
               
               
               
               
               
               
             
               
                 Corrosion test results from tests conducted on J55 steel at 150° C. for a period of 4 hours (coupon surface area of 28.922 cm 2 , steel density of 7.86 g/cc) 
               
               
                 Fluid 
                 Corrosion Package 
                 Initial Wt. (g) 
                 Final wt. (g) 
                 Loss wt. (g) 
                 Mils/yr 
                 mm/year 
                 lb/ft2 
               
             
            
               
                 50% Lysine HCl 1:3 + Seawater 
                 NO CI 
                 37.7225 
                 33.509 
                 4.214 
                 15980.92 
                 405.915 
                 0.299 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 NO CI 
                 37.7624 
                 32.8383 
                 4.924 
                 18676.07 
                 474.372 
                 0.349 
               
               
                 15% HCl + Seawater 
                 5% FCI-D 5% CI-1A 
                 37.754 
                 37.6589 
                 0.095 
                 360.6942 
                 9.162 
                 0.007 
               
               
                 15% HCl + Seawater 
                 5% FCI-D 
                 38.7642 
                 38.6659 
                 0.098 
                 372.8311 
                 9.470 
                 0.007 
               
               
                 15% HCl + Seawater 
                 5% FCI-D 
                 37.3469 
                 37.2079 
                 0.139 
                 527.1976 
                 13.391 
                 0.010 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-D2 5%CI-1A 
                 36.7223 
                 36.5178 
                 0.204 
                 775.6253 
                 19.701 
                 0.014 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-D2 5%CI-1A 
                 37.5027 
                 37.3713 
                 0.131 
                 498.3725 
                 12.659 
                 0.009 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-D3 5%CI-1A 
                 37.6682 
                 37.4969 
                 0.171 
                 649.7047 
                 16.502 
                 0.012 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-D3 5%CI-1A 
                 37.7761 
                 37.6005 
                 0.176 
                 666.0137 
                 16.917 
                 0.012 
               
            
           
         
       
     
     
       
         
          TABLE #10
           
               
               
               
               
               
               
               
               
             
               
                 Corrosion test results from tests conducted at 150° C. for 4 hours with a coupon density of 7.86 g/cc having a surface area of 28.922 cm 2  (steel coupons used were L80 coupons (used)) 
               
               
                 Fluid 
                 Corrosion Package 
                 Initial Wt. (g) 
                 Final wt. (g) 
                 Loss wt. (g) 
                 Mils/yr 
                 mm/year 
                 lb/ft2 
               
             
            
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-D 0.5% CI-1A 
                 37.01 
                 36.8973 
                 0.113 
                 440.3054 
                 11.184 
                 0.008 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-D 0.5% CI-1A 
                 35.7874 
                 35.705 
                 0.082 
                 321.9269 
                 8.177 
                 0.006 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-E 0.5% CI-1A 
                 37.5576 
                 37.4583 
                 0.099 
                 387.9532 
                 9.854 
                 0.007 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-E 0.5% CI-1A 
                 36.2755 
                 36.2139 
                 0.062 
                 240.6638 
                 6.113 
                 0.004 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-F0.5% CI-1A 
                 37.7066 
                 37.4858 
                 0.221 
                 862.6391 
                 21.911 
                 0.016 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-F 0.5% CI-1A 
                 36.3462 
                 36.1924 
                 0.154 
                 600.8782 
                 15.262 
                 0.011 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-A 0.5% CI-1A 
                 36.8962 
                 36.8499 
                 0.046 
                 180.8886 
                 4.595 
                 0.003 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-A 0.5% CI-1A 
                 35.7048 
                 35.6665 
                 0.038 
                 149.6335 
                 3.801 
                 0.003 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-B 0.5% CI-1A 
                 37.459 
                 37.3766 
                 0.082 
                 321.9269 
                 8.177 
                 0.006 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-B 0.5% CI-1A 
                 36.2136 
                 36.1546 
                 0.059 
                 230.5059 
                 5.855 
                 0.004 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-C 0.5% CI-1A 
                 37.4864 
                 37.2176 
                 0.269 
                 1050.169 
                 26.674 
                 0.020 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-G 0.5% CI-1A 
                 36.1917 
                 33.338 
                 2.854 
                 11149.06 
                 283.186 
                 0.208 
               
               
                 CI-1A: Potassium iodide 
               
            
           
         
       
     
     
       
         
          TABLE #11
           
               
               
               
               
               
               
               
               
               
             
               
                 Corrosion test results from tests conducted at 150° C. for 4 hours with a coupon density of 7.86 g/cc having a surface area of 28.922 cm 2  (steel coupons used were J55 coupons) 
               
               
                 Fluid 
                 Corrosion Package 
                 Initial Wt. (g) 
                 Final wt. (g) 
                 Loss wt. (g) 
                 Mils/yr 
                 mm/year 
                 lb/ft2 
                 Notes 
               
             
            
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-A 0.5% CI-1A 
                 37.0119 
                 36.8451 
                 0.167 
                 632.6372 
                 16.069 
                 0.012 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-B 0.5% CI-1A 
                 37.7643 
                 37.6085 
                 0.156 
                 590.9165 
                 15.009 
                 0.011 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-C 0.5% CI-1A 
                 36.1695 
                 35.9993 
                 0.170 
                 645.5327 
                 16.397 
                 0.012 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-D 0.5% CI-1A 
                 37.5864 
                 37.4001 
                 0.186 
                 706.5966 
                 17.948 
                 0.013 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-E 0.5% CI-1A 
                 38.0712 
                 37.6173 
                 0.454 
                 1721.547 
                 43.727 
                 0.032 
                 2 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-F 0.5% CI-1A 
                 37.1952 
                 36.9591 
                 0.236 
                 895.4774 
                 22.745 
                 0.017 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-B 0.5% CI-1A 
                 36.8453 
                 36.6665 
                 0.179 
                 678.1506 
                 17.225 
                 0.013 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-D 0.5% CI-1A 
                 35.9995 
                 35.8433 
                 0.156 
                 592.4336 
                 15.048 
                 0.011 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-H 0.5% CI-1A 
                 37.6098 
                 37.274 
                 0.336 
                 1273.618 
                 32.350 
                 0.024 
                 2 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-J 0.5% CI-1A 
                 37.4009 
                 36.9432 
                 0.458 
                 1735.959 
                 44.093 
                 0.032 
                 2 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-I 0.5% CI-1A 
                 38.0037 
                 37.5763 
                 0.427 
                 1621.038 
                 41.174 
                 0.030 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-K 0.5% CI-1A 
                 35.8436 
                 35.5226 
                 0.321 
                 1217.485 
                 30.924 
                 0.023 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-L 0.5%CI-1A 
                 38.0771 
                 37.5798 
                 0.497 
                 1886.154 
                 47.908 
                 0.035 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-M 0.5%CI-1A 
                 37.5469 
                 36.9798 
                 0.567 
                 2150.891 
                 54.633 
                 0.040 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-N 0.5% CI-1A 
                 36.9591 
                 35.7608 
                 1.198 
                 4544.899 
                 115.440 
                 0.085 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-O 0.5% CI-1A 
                 37.1169 
                 36.0159 
                 1.101 
                 4175.86 
                 106.067 
                 0.078 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-D 0.2% CI-1A 
                 38.031 
                 37.678 
                 0.353 
                 1338.854 
                 34.007 
                 0.025 
                 2 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-D 0.4% CI-1A 
                 37.6167 
                 37.1985 
                 0.418 
                 1586.144 
                 40.288 
                 0.030 
                 2 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 1.5% FCI-D 0.5% CI-1A 
                 37.5349 
                 36.8591 
                 0.676 
                 2563.167 
                 65.104 
                 0.048 
                 2 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 1.5% FCI-D 0.4% CI-1A 
                 37.3754 
                 36.6932 
                 0.682 
                 2587.441 
                 65.721 
                 0.048 
                 2 
               
               
                 NB: 1 - light pitting; 2 - pitting; 3 - severe pitting 
               
            
           
         
       
     
     
       
         
          TABLE # 12
           
               
               
               
               
               
               
               
               
               
             
               
                 Corrosion test results from tests conducted at 150° C. for 4 hours with a coupon density of 7.86 g/cc having a surface area of 28.922 cm 2  steel coupons used were L80 coupons) 
               
               
                 Fluid 
                 Corrosion Package 
                 Initial Wt. (g) 
                 Final wt. (g) 
                 Loss wt. (g) 
                 Mils/yr 
                 mm/year 
                 lb/ft2 
                 Notes 
               
             
            
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-D 0.5% CI-1A 
                 58.5911 
                 56.895 
                 1.696 
                 6626.46 
                 168.312 
                 0.124 
                 3 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 3.5% FCI-D 0.5% CI-1A 
                 58.0584 
                 57.6962 
                 0.362 
                 1415.072 
                 35.943 
                 0.026 
                 2 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-D 0.5% CI-1A 
                 59.0373 
                 58.7794 
                 0.258 
                 1007.584 
                 25.593 
                 0.019 
                 1 
               
               
                 NB: 1 - light pitting; 2 - pitting; 3 - severe pitting 
               
            
           
         
       
     
     
       
         
          TABLE # 13
           
               
               
               
               
               
               
               
               
             
               
                 Corrosion test results from tests conducted at 150° C. for 4 hours with a coupon density of 7.86 g/cc having a surface area of 28.922 cm 2  (steel coupons used were P110 coupons) 
               
               
                 Fluid 
                 Corrosion Package 
                 Initial Wt. (g) 
                 Final wt. (g) 
                 Loss wt. (g) 
                 Mils/yr 
                 mm/year 
                 lb/ft2 
               
             
            
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-A 0.5% CI-A 
                 56.5631 
                 55.3102 
                 1.253 
                 4751.985 
                 120.700 
                 0.091 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-B 0.5%CI-1A 
                 58.2611 
                 56.9186 
                 1.343 
                 5091.819 
                 129.332 
                 0.098 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-C 0.5% CI-1A 
                 55.4101 
                 54.4499 
                 0.960 
                 3641.836 
                 92.503 
                 0.070 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-B 0.5% CI-1A 
                 54.6811 
                 54.1685 
                 0.513 
                 1944.184 
                 49.382 
                 0.037 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-D 0.5% CI-1A 
                 55.397 
                 55.0747 
                 0.322 
                 1222.416 
                 31.049 
                 0.024 
               
            
           
         
       
     
     
       
         
          TABLE # 14
           
               
               
               
               
               
               
               
               
               
             
               
                 Corrosion test results from tests conducted at 150° C. for 4 hours with a coupon density of 7.86 g/cc having a surface area of 28.922 cm 2  steel coupons used were J55 coupons) 
               
               
                 Fluid 
                 Corrosion Package 
                 Initial Wt. (g) 
                 Final wt. (g) 
                 Loss wt. (g) 
                 Mils/yr 
                 mm/year 
                 lb/ft2 
                 Notes 
               
             
            
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-Q 0.5% CI-1A 
                 37.1228 
                 36.7597 
                 0.363 
                 1377.162 
                 34.980 
                 0.026 
                 2 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-R 0.5% CI-1A 
                 36.1937 
                 35.4262 
                 0.767 
                 2910.965 
                 73.939 
                 0.054 
                 2 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-S 0.5% CI-1A 
                 37.0775 
                 35.7491 
                 1.328 
                 5189.9 
                 131.823 
                 0.097 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-T 0.5% CI-1A 
                 38.7799 
                 37.423 
                 1.357 
                 5301.246 
                 134.652 
                 0.099 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-U 0.5% CI-1A 
                 37.2187 
                 35.7939 
                 1.425 
                 5403.966 
                 137.261 
                 0.101 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 2.5% FCI-V 0.5% CI-1A 
                 37.1923 
                 36.4536 
                 0.739 
                 2801.733 
                 71.164 
                 0.052 
                   
               
               
                 NB: 1 - light pitting; 2 - pitting; 3 - severe pitting 
               
            
           
         
       
     
     
       
         
          TABLE #15
           
               
               
               
               
               
               
               
               
               
             
               
                 Corrosion test results from tests conducted on L80 steel at 200° C. for a period of 2 hours (coupon surface area of 28.0774 cm 2 , steel density = 7.86 g/cc) 
               
               
                 Fluid 
                 Corrosion Package 
                 Initial Wt. (g) 
                 Final wt. (g) 
                 Loss wt. (g) 
                 Mils/yr 
                 mm/year 
                 lb/ft2 
                 notes 
               
             
            
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-D 0.5% CI-1A 
                 36.1585 
                 35.7254 
                 0.433 
                 3384.14 
                 85.957 
                 0.032 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-D 0.75% CI-1A 
                 37.429 
                 36.7473 
                 0.682 
                 5326.64 
                 135.297 
                 0.050 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 7.5% FCI-D 0.5% CI-1A 
                 37.2217 
                 36.4711 
                 0.751 
                 5865.009 
                 148.971 
                 0.055 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 7.5% FCI-D 0.75% CI-1A 
                 37.3811 
                 36.7824 
                 0.599 
                 4678.098 
                 118.824 
                 0.044 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 7.5% FCI-D 1%CI-1A 
                 35.6699 
                 35.0103 
                 0.660 
                 5153.956 
                 130.910 
                 0.048 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 7.5% FCI-A 1%CI-1A 
                 60.1359 
                 59.7917 
                 0.344 
                 2689.496 
                 68.313 
                 0.025 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 7.5% FCI-D 1%CI-1A 
                 58.7 
                 58.3834 
                 0.317 
                 2473.837 
                 62.835 
                 0.023 
                   
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 7.5% FCI-E 1%CI-1A 
                 57.8853 
                 56.755 
                 1.130 
                 8831.893 
                 224.330 
                 0.083 
                 severe pitting 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 7.5% FCI-I 1%CI-1A 
                 58.5468 
                 58.1361 
                 0.411 
                 3209.111 
                 81.511 
                 0.030 
                 small pits 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 7.5% FCI-X 1%CI-1A 
                 58.7183 
                 56.3012 
                 2.417 
                 18886.64 
                 479.721 
                 0.176 
                 severe pitting 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 10% FCI-A 1%CI-1A 
                 58.6233 
                 57.7126 
                 0.911 
                 7115.992 
                 180.746 
                 0.066 
                 Pitting 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 10% FCI-D 1%CI-1A 
                 59.3942 
                 59.027 
                 0.367 
                 2869.213 
                 72.878 
                 0.027 
                 slight pitting 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 7.5% FCI-Y 1%CI-1A 
                 58.9283 
                 58.6014 
                 0.327 
                 2554.318 
                 64.880 
                 0.024 
                 Pitting 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 7.5% FCI-Z 1%CI-1A 
                 58.7227 
                 58.2307 
                 0.492 
                 3844.37 
                 97.647 
                 0.036 
                 Pitting 
               
            
           
         
       
     
     
       
         
          TABLE #16
           
               
               
               
               
               
               
               
               
             
               
                 Corrosion test results from tests conducted on L80 Steel at 150° C. for a period of 4 hours (coupon surface area of 28.0774 cm 2 , steel density of 7.86 g/cc) 
               
               
                 Fluid 
                 Corrosion Package 
                 Initial Wt. (g) 
                 Final wt. (g) 
                 Loss wt. (g) 
                 Mils/yr 
                 mm/year 
                 lb/ft2 
               
             
            
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-B 0.5% CI-1A 
                 60.9646 
                 60.4796 
                 0.485 
                 1894.837 
                 48.129 
                 0.035 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-B2 0.5% CI-1A 
                 60.7783 
                 60.5228 
                 0.256 
                 998.2079 
                 25.354 
                 0.019 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-C 0.5% CI-1A 
                 61.3428 
                 60.9434 
                 0.399 
                 1560.408 
                 39.634 
                 0.029 
               
            
           
         
       
     
     
       
         
          TABLE #17
           
               
               
               
               
               
               
               
               
             
               
                 Corrosion test results from tests conducted on P110 steel at 150° C. for a period of 4 hours (coupon surface area of 28.922 cm 2 , steel density of 7.86 g/cc) 
               
               
                 Fluid 
                 Corrosion Package 
                 Initial Wt. (g) 
                 Final wt. (g) 
                 Loss wt. (g) 
                 Mils/yr 
                 mm/year 
                 lb/ft2 
               
             
            
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-B 0.5% CI-1A 
                 55.797 
                 55.0799 
                 0.717 
                 2719.809 
                 69.083 
                 0.052 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-B2 0.5% CI-1A 
                 56.5985 
                 55.3402 
                 1.258 
                 4772.466 
                 121.221 
                 0.092 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-C 0.5% CI-1A 
                 55.5223 
                 54.3893 
                 1.133 
                 4297.23 
                 109.150 
                 0.083 
               
            
           
         
       
     
     
       
         
          TABLE #18
           
               
               
               
               
               
               
               
               
             
               
                 Corrosion test results from tests conducted on L80 steel at 150° C. for a period of 4 hours (coupon surface area of 28.0774 cm 2 , steel density of 7.86 g/cc) 
               
               
                 Fluid 
                 Corrosion Package 
                 Initial Wt. (g) 
                 Final wt. (g) 
                 Loss wt. (g) 
                 Mils/yr 
                 mm/year 
                 lb/ft2 
               
             
            
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-A 0.5% CI-1A 
                 60.8837 
                 60.5081 
                 0.376 
                 1467.424 
                 37.273 
                 0.027 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-B 0.5% CI-1A 
                 59.4286 
                 59.1164 
                 0.312 
                 1219.728 
                 30.981 
                 0.023 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-B2 0.5% CI-1A 
                 60.7783 
                 60.5228 
                 0.256 
                 998.2079 
                 25.354 
                 0.019 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-B3 0.5% CI-1A 
                 60.869 
                 60.6118 
                 0.257 
                 1004.85 
                 25.523 
                 0.019 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 5% FCI-C 0.5% CI-1A 
                 61.794 
                 61.5172 
                 0.277 
                 1081.424 
                 27.468 
                 0.020 
               
            
           
         
       
     
     
       
         
          TABLE #19
           
               
               
               
               
               
               
               
               
             
               
                 Corrosion test results from tests conducted on L80 steel at 200° C. for a period of 2 hours (coupon surface area of 28.0774 cm 2 , steel density of 7.86 g/cc) 
               
               
                 Fluid 
                 Corrosion Package 
                 Initial Wt. (g) 
                 Final wt. (g) 
                 Loss wt. (g) 
                 Mils/yr 
                 mm/year 
                 lb/ft2 
               
             
            
               
                 50% Lysine HCl 1:3 + Seawater 
                 7.5% FCI-B2 1% CI-1A 
                 60.9673 
                 60.4881 
                 0.479 
                 3744.354 
                 95.107 
                 0.035 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 10% FCI-B2 1%CI-1A 
                 60.4192 
                 59.9616 
                 0.458 
                 3575.577 
                 90.820 
                 0.033 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 10% FCI-B2 1.25% CI-1A 
                 60.2292 
                 59.6716 
                 0.558 
                 4356.953 
                 110.667 
                 0.041 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 7.5% FCI-B2 0.75% CI-1A 
                 60.4591 
                 60.0077 
                 0.451 
                 3527.131 
                 89.589 
                 0.033 
               
               
                 50% Lysine HCl 1:3 + Seawater 
                 7.5% FCI-B2 1% CI-1A 
                 60.6992 
                 60.4063 
                 0.293 
                 2288.65 
                 58.132 
                 0.021 
               
            
           
         
       
     
     
       
         
          TABLE #20
           
               
               
               
               
               
               
               
               
             
               
                 Corrosion test results from tests conducted on L80 steel at 150° C. for a period of 4 hours (coupon surface area of 28.0774 cm 2 , steel density of 7.86 g/cc) 
               
               
                 Fluid 
                 Corrosion Package 
                 Initial Wt. (g) 
                 Final wt. (g) 
                 Loss wt. (g) 
                 Mils/yr 
                 mm/year 
                 lb/ft2 
               
             
            
               
                 50% Lysine HCl 1:5 + Seawater 
                 5% FCI-B2 0.5% CI-1A 
                 60.4177 
                 60.1643 
                 0.253 
                 990.0034 
                 25.146 
                 0.018 
               
               
                 50% Lysine HCl 1:5 + Seawater 
                 7.5% FCI-B2 0.5% CI-1A 
                 59.6982 
                 59.4745 
                 0.224 
                 873.9691 
                 22.199 
                 0.016 
               
               
                 50% Lysine HCl 1:5 + Seawater 
                 5% FCI-B2 0.75% CI-1A 
                 59.899 
                 59.6007 
                 0.298 
                 1165.422 
                 29.602 
                 0.022 
               
               
                 50% Lysine HCl 1:5 + Seawater 
                 7.5% FCI-B2 0.75% CI-1A 
                 60.3211 
                 60.0907 
                 0.230 
                 900.1452 
                 22.864 
                 0.017 
               
            
           
         
       
     
     
       
         
          TABLE #21
           
               
               
               
               
               
               
               
               
             
               
                 Corrosion test results from tests conducted on L80 steel at 220° C. for a period of 2 hours (coupon surface area of 28.0774 cm 2 , steel density of 7.86 g/cc) 
               
               
                 Fluid 
                 Corrosion Package 
                 Initial Wt. (g) 
                 Final wt. (g) 
                 Loss wt. (g) 
                 Mils/yr 
                 mm/year 
                 lb/ft2 
               
             
            
               
                 50% Lysine-HCl 1:3 + Seawater 
                 7.5% FCI-B2 1%CI-1A 
                 61.6074 
                 61.1883 
                 0.419 
                 3274.747 
                 83.179 
                 0.031 
               
               
                 50% Lysine-HCl 1:3 + Seawater 
                 7.5% FCI-H2 1%CI-1A 
                 61.3002 
                 60.6069 
                 0.693 
                 5417.28 
                 137.599 
                 0.051 
               
               
                 50% Lysine-HCl 1:3 + Seawater 
                 7.5% FCI-I2 1%CI-1A 
                 59.1065 
                 58.2406 
                 0.866 
                 6765.935 
                 171.855 
                 0.063 
               
            
           
         
       
     
     
       
         
          TABLE #22
           
               
               
               
               
               
               
               
               
             
               
                 Corrosion test results from tests conducted using 15% HCl on 1018 steel at various temperatures for a period of 6 hours (coupon surface area of 41.4 cm 2 , steel density of 7.86 g/cc) 
               
               
                 Temp °C 
                 Corrosion Package 
                 Initial Wt. (g) 
                 Final wt. (g) 
                 Loss wt. (g) 
                 Mils/yr 
                 mm/year 
                 lb/ft2 
               
             
            
               
                 70 
                 0.5% FCI-B2a 0.25% CI-1A 
                 74.0445 
                 74.0042 
                 0.040 
                 71.18695714 
                 1.808 
                 0.002 
               
               
                 70 
                 0.25% FCI-B2a 0.25% CI-1A 
                 74.2268 
                 74.1473 
                 0.079 
                 140.430846 
                 3.567 
                 0.004 
               
               
                 70 
                 0.15% FCI-B2a 0.25% CI-1A 
                 74.0014 
                 73.8027 
                 0.199 
                 350.9887936 
                 8.915 
                 0.010 
               
               
                 70 
                 0.5% FCI-B2a 
                 74.079 
                 74.0257 
                 0.053 
                 94.1504917 
                 2.391 
                 0.003 
               
               
                 70 
                 0.25% FCI-B2a 
                 74.0705 
                 73.9506 
                 0.120 
                 211.7944457 
                 5.380 
                 0.006 
               
               
                 70 
                 0.15% FCI-B2a 
                 73.9286 
                 73.5075 
                 0.421 
                 743.8418772 
                 18.894 
                 0.021 
               
               
                 90 
                 0.5% FCI-B2a 0.25% CI-1A 
                 74.2865 
                 74.1327 
                 0.154 
                 271.6762781 
                 6.901 
                 0.008 
               
               
                 90 
                 0.25% FCI-B2a 0.25% CI-1A 
                 74.1226 
                 73.3237 
                 0.799 
                 1411.19752 
                 35.844 
                 0.040 
               
               
                 90 
                 0.5% FCI-B2a 
                 74.0325 
                 73.8418 
                 0.191 
                 336.8573877 
                 8.556 
                 0.009 
               
               
                 90 
                 0.25% FCI-B2a 
                 73.8154 
                 72.9728 
                 0.843 
                 1488.390325 
                 37.805 
                 0.042 
               
               
                 50 
                 0.25% FCI-B2a 0.25% CI-1A 
                 75.0438 
                 75.0165 
                 0.027 
                 48.22342258 
                 1.225 
                 0.001 
               
               
                 50 
                 0.25% FCI-B2a 
                 75.054 
                 75.0109 
                 0.043 
                 76.1329492 
                 1.934 
                 0.002 
               
               
                 50 
                 0.15% FCI-B2a 0.15% CI-1A 
                 74.177 
                 74.1309 
                 0.046 
                 81.4322264 
                 2.068 
                 0.002 
               
               
                 50 
                 0.15% FCI-B2a 
                 74.0119 
                 73.9414 
                 0.070 
                 124.5330143 
                 3.163 
                 0.003 
               
               
                 110 
                 1.0% FCI-B2a 0.25% CI-1A 
                 74.0053 
                 73.9371 
                 0.068 
                 120.4702352 
                 3.060 
                 0.003 
               
               
                 110 
                 0.75% FCI-B2a 0.25% CI-1A 
                 74.1822 
                 74.1141 
                 0.068 
                 120.2935926 
                 3.055 
                 0.003 
               
               
                 110 
                 1.0% FCI-B2a 
                 74.1918 
                 74.091 
                 0.101 
                 178.0557141 
                 4.523 
                 0.005 
               
               
                 110 
                 0.75% FCI-B2a 
                 74.238 
                 74.1362 
                 0.102 
                 179.8221399 
                 4.567 
                 0.005 
               
               
                 110 
                 0.50% FCI-B2a 0.25% CI-1A 
                 73.942 
                 73.8467 
                 0.095 
                 168.3403726 
                 4.276 
                 0.005 
               
               
                 110 
                 0.50% FCI-B2a 
                 74.1361 
                 73.9157 
                 0.220 
                 389.3202321 
                 9.889 
                 0.011 
               
               
                 70 
                 0.25% FCI-B2a(D) 0.25% CI-1A 
                 74.2088 
                 73.6566 
                 0.552 
                 975.4202911 
                 24.776 
                 0.027 
               
               
                 70 
                 0.50% FCI-B2a(D) 0.25% CI-1A 
                 74.9309 
                 74.838 
                 0.093 
                 164.1009508 
                 4.168 
                 0.005 
               
               
                 70 
                 0.75% FCI-B2a (D) 0.25% CI-1A 
                 74.1802 
                 74.1116 
                 0.069 
                 121.1768054 
                 3.078 
                 0.003 
               
               
                 70 
                 0.25% FCI-B2a (D) 
                 74.1369 
                 73.9055 
                 0.231 
                 408.7509152 
                 10.382 
                 0.011 
               
               
                 70 
                 0.50% FCI-B2a (D) 
                 73.9657 
                 73.9016 
                 0.064 
                 113.2278896 
                 2.876 
                 0.003 
               
               
                 70 
                 0.75% FCI-B2a (D) 
                 74.1934 
                 74.1485 
                 0.045 
                 79.31251552 
                 2.015 
                 0.002 
               
               
                 90 
                 0.50%FCI-B2a (D) 0.25% CI-1A 
                 74.2141 
                 73.7547 
                 0.459 
                 811.4959828 
                 20.612 
                 0.023 
               
               
                 90 
                 0.75% FCI-B2a (D) 0.25% CI-1A 
                 74.0777 
                 73.9459 
                 0.132 
                 232.8149119 
                 5.913 
                 0.007 
               
               
                 90 
                 1.0% FCI-B2a (D) 0.25% CI-1A 
                 74.1802 
                 74.1116 
                 0.069 
                 121.1768054 
                 3.078 
                 0.003 
               
               
                 90 
                 0.50% FCI-B2a (D) 
                 73.9886 
                 73.2281 
                 0.761 
                 1343.366772 
                 34.122 
                 0.038 
               
               
                 90 
                 0.75% FCI-B2a (D) 
                 74.2525 
                 73.9589 
                 0.294 
                 518.6225959 
                 13.173 
                 0.015 
               
               
                 90 
                 1.0% FCI-B2a (D) 
                 74.0419 
                 73.8995 
                 0.142 
                 251.5390247 
                 6.389 
                 0.007 
               
               
                 90 
                 0.75% FCI-B2a (D) 0.25% CI-1A 
                 74.0619 
                 73.6747 
                 0.387 
                 683.9600447 
                 17.373 
                 0.019 
               
               
                 90 
                 1.0% FCI-B2a (D) 0.25% CI-1A 
                 74.0166 
                 73.8356 
                 0.181 
                 319.7230581 
                 8.121 
                 0.009 
               
               
                 50 
                 0.25% FCI-B2a (D) 0.25% CI-1A 
                 74.078 
                 74.032 
                 0.046 
                 81.25558383 
                 2.064 
                 0.002 
               
               
                 50 
                 0.50% FCI-B2a (D) 0.25% CI-1A 
                 74.1016 
                 74.0735 
                 0.028 
                 49.63656316 
                 1.261 
                 0.001 
               
               
                 50 
                 0.75% FCI-B2a (D) 0.25% CI-1A 
                 73.9875 
                 73.9654 
                 0.022 
                 39.03800875 
                 0.992 
                 0.001 
               
               
                 50 
                 0.25% FCI-B2a(D) 
                 74.1088 
                 74.0327 
                 0.076 
                 134.4249985 
                 3.414 
                 0.004 
               
               
                 50 
                 0.50% FCI-B2a(D) 
                 74.0231 
                 73.9881 
                 0.035 
                 61.82490074 
                 1.570 
                 0.002 
               
               
                 50 
                 0.75% FCI-B2a(D) 
                 74.181 
                 74.1539 
                 0.027 
                 47.87013743 
                 1.216 
                 0.001 
               
               
                 110 
                 0.50% FCI-B2a 0.25% CI-1A 
                 74.1478 
                 74.0243 
                 0.124 
                 218.1535783 
                 5.541 
                 0.006 
               
               
                 110 
                 0.75% FCI-B2a 0.25% CI-1A 
                 74.0935 
                 74.0018 
                 0.092 
                 161.9812399 
                 4.114 
                 0.005 
               
               
                 110 
                 0.75% FCI-B2a 0.50% CI-1A 
                 74.5447 
                 74.4628 
                 0.082 
                 144.6702677 
                 3.675 
                 0.004 
               
               
                 130 
                 0.75% FCI-B2a 0.25% CI-1A 
                 74.0073 
                 73.6322 
                 0.375 
                 662.5862933 
                 16.830 
                 0.019 
               
               
                 130 
                 0.75% FCI-B2a 0.50% CI-1A 
                 74.0998 
                 73.7496 
                 0.350 
                 618.6022925 
                 15.712 
                 0.017 
               
            
           
         
       
     
     
       
         
          TABLE #23
           
               
               
               
               
               
               
               
               
             
               
                 Corrosion test results from tests conducted using 15% HCl on 1018 steel at various temperatures for a period of 4 hours (coupon surface area of 41.4 cm 2 , steel density of 7.86 g/cc) 
               
               
                 Temp °C 
                 Corrosion Package 
                 Initial Wt. (g) 
                 Final wt. (g) 
                 Loss wt. (g) 
                 Mils/yr 
                 mm/year 
                 lb/ft2 
               
             
            
               
                 150 
                 1.75% FCI-2a 0.750% CI-1A 
                 74.147 
                 73.7916 
                 0.355 
                 941.6815595 
                 23.919 
                 0.018 
               
               
                 150 
                 2.25% FCI-2a 0.75% CI-1A 
                 74.0795 
                 73.5693 
                 0.510 
                 1351.845615 
                 34.337 
                 0.025 
               
               
                 150 
                 2.5% FCI-2a 1.25% CI-1A 
                 74.0907 
                 73.6619 
                 0.429 
                 1136.165033 
                 28.859 
                 0.021 
               
               
                 90 
                 1.0% FCI-B2a(DM) 0.25% CI-1A 
                 74.2756 
                 73.6124 
                 0.663 
                 1757.240322 
                 44.634 
                 0.033 
               
               
                 90 
                 0.75% FCI-B2a(DM) 0.25% CI-1A 
                 74.2299 
                 73.63 
                 0.600 
                 1589.518198 
                 40.374 
                 0.030 
               
               
                 70 
                 1.0% FCI-B2a (DM) 
                 74.0194 
                 73.8533 
                 0.166 
                 440.104972 
                 11.179 
                 0.008 
               
               
                 70 
                 0.75% FCI-B2a(DM) 
                 74.2191 
                 73.9308 
                 0.288 
                 763.8908093 
                 19.403 
                 0.014 
               
               
                 70 
                 0.35% FCI-B2a(DM) 0.25% CI-1A 
                 74.0978 
                 73.7705 
                 0.327 
                 867.2267148 
                 22.028 
                 0.016 
               
               
                 70 
                 0.50% FCI-B2a(DM) 0.25% CI-1A 
                 74.1442 
                 73.9403 
                 0.204 
                 540.2613112 
                 13.723 
                 0.010 
               
               
                 70 
                 0.75% FCI-B2a(DM) 0.25% CI-1A 
                 74.1127 
                 73.9854 
                 0.127 
                 337.2989942 
                 8.567 
                 0.006 
               
               
                 90 
                 1.0% FCI-B2a(DM) 0.50% CI-1A 
                 74.0561 
                 73.7182 
                 0.338 
                 895.312884 
                 22.741 
                 0.017 
               
            
           
         
       
     
     
       
         
          TABLE #24
           
               
               
               
               
               
               
               
               
               
               
             
               
                 Corrosion test results from tests conducted using various synthetic acid blends on L80 steel at various temperatures and exposure times (coupon surface area of 28.0774 \.29 cm 2 , steel density of 7.86 g/cc) 
               
               
                 Fluid system 
                 temp 
                 Corrosion Package 
                 Initial Wt. (g) 
                 Final wt. (g) 
                 Loss wt. (g) 
                 Time (hours) 
                 Mils/yr 
                 mm/year 
                 lb/ft2 
               
             
            
               
                 50% lysine-HCl 1:4.5 
                 200 
                 7.5% FCI-B2a 1%CI-1A 
                 60.4438 
                 60.135 
                 0.309 
                 2 
                 2412.889212 
                 61.287 
                 0.023 
               
               
                 90% lysine-HCl 1:4.5 
                 110 
                 1.25% FCI-B2a 1%CI-1A 
                 60.6304 
                 60.4759 
                 0.154 
                 6 
                 402.4086607 
                 10.221 
                 0.011 
               
               
                 90% lysine-HCl 1:4.5 
                 110 
                 1.25% FCI-B2a 1%CI-1A 
                 61.1477 
                 60.8601 
                 0.288 
                 6 
                 749.079164 
                 19.027 
                 0.021 
               
               
                 50% lysine-HCl 1:4.5 
                 200 
                 7.5% FCI-B2a 1%CI-1A 
                 59.129 
                 58.7474 
                 0.382 
                 2 
                 2981.73097 
                 75.736 
                 0.028 
               
               
                 50% lysine-HCl 1:6.5 
                 200 
                 8.5% FCI-B2a 1.25% CI-1A 
                 60.8457 
                 60.4712 
                 0.374 
                 2 
                 2926.253271 
                 74.327 
                 0.027 
               
               
                 50% lysine-HCl 1:8.5 
                 150 
                 5.0% FCI-B2a 0.5% CI-1A 
                 60.5557 
                 60.3627 
                 0.193 
                 4 
                 754.0278789 
                 19.152 
                 0.014 
               
               
                 50% lysine-HCl 1:8.5 
                 150 
                 5.0% FCI-B2a 0.5% CI-1A 
                 60.1053 
                 59.5843 
                 0.521 
                 5 
                 1628.387668 
                 41.361 
                 0.038 
               
               
                 50% lysine-HCl 1:8.5 
                 150 
                 5.0% FCI-B2a 0.5% CI-1A 
                 60.0322 
                 59.3632 
                 0.669 
                 6 
                 1742.46857 
                 44.259 
                 0.049 
               
               
                 33% lysine-HCl 1:8.5 
                 150 
                 5.0% FCI-B2a 0.5% CI-1A 
                 60.3761 
                 60.1877 
                 0.188 
                 4 
                 736.05623 
                 18.696 
                 0.014 
               
               
                 33% lysine-HCl 1:8.5 
                 150 
                 5.0% FCI-B2a 0.5% CI-1A 
                 60.3221 
                 59.9849 
                 0.337 
                 5 
                 1053.920003 
                 26.770 
                 0.025 
               
               
                 33% lysine-HCl 1:8.5 
                 150 
                 5.0% FCI-B2a 0.5% CI-1A 
                 60.2575 
                 59.6801 
                 0.577 
                 6 
                 1503.888419 
                 38.199 
                 0.042 
               
               
                 33% lysine-HCl 1:8.5 
                 150 
                 6.0% FCI-B2a 0.6% CI-1A 
                 60.2718 
                 60.0777 
                 0.194 
                 4 
                 758.3254471 
                 19.261 
                 0.014 
               
               
                 33% lysine-HCl 1:8.5 
                 150 
                 6.0% FCI-B2a 0.6% CI-1A 
                 60.1422 
                 59.8309 
                 0.311 
                 5 
                 972.9694454 
                 24.713 
                 0.023 
               
               
                 33% lysine-HCl 1:8.5 
                 150 
                 6.0% FCI-B2a 0.6% CI-1A 
                 59.863 
                 59.3958 
                 0.467 
                 6 
                 1216.862953 
                 30.908 
                 0.034 
               
               
                 100% lysine-HCl 1:8.5 
                 150 
                 3.0% FCI-B2a 0.3% CI-1A 
                 60.4234 
                 59.2116 
                 1.212 
                 4 
                 4734.357428 
                 120.253 
                 0.088 
               
               
                 100% lysine-HCl 1:8.5 
                 150 
                 2.5% FCI-B2a 0.3% CI-1A 
                 60.4212 
                 59.7891 
                 0.632 
                 4 
                 2469.538975 
                 62.726 
                 0.046 
               
               
                 50% lysine-HCl 1:8.5 
                 150 
                 5.0% FCI-B2a 0.5% CI-1A 
                 60.667 
                 60.3115 
                 0.355 
                 4 
                 1388.895912 
                 35.278 
                 0.026 
               
               
                 50% lysine-HCl 1:8.5 
                 150 
                 5.0% FCI-B2a 0.5% CI-1A 
                 60.667 
                 60.3115 
                 0.355 
                 4 
                 1388.895912 
                 35.278 
                 0.026 
               
               
                 100% lysine-HCl 1:8.5 
                 150 
                 6.0% FCI-B2a 0.7% CI-1A 
                 60.4182 
                 59.778 
                 0.640 
                 4 
                 2501.184705 
                 63.530 
                 0.047 
               
               
                 6.66% lysine-HCl 1:8.5 
                 150 
                 5.0% FCI-B2a 0.5% CI-1A 
                 60.4667 
                 59.9199 
                 0.547 
                 3 
                 2848.376126 
                 72.349 
                 0.040 
               
               
                 13.3% lysine-HCl 1:8.5 
                 150 
                 5.0% FCI-B2a 0.5% CI-1A 
                 60.6686 
                 60.5198 
                 0.149 
                 3 
                 775.125032 
                 19.688 
                 0.011 
               
               
                 13.3% lysine-HCl 1:8.5 
                 150 
                 5.0% FCI-B2a 0.5% CI-1A 
                 59.7332 
                 59.4264 
                 0.307 
                 4 
                 1198.630846 
                 30.445 
                 0.022 
               
               
                 6.66% lysine-HCl 1:8.5 
                 150 
                 6.5% FCI-2A 0.65% CI-1A 
                 60.3516 
                 60.1867 
                 0.165 
                 3 
                 858.992727 
                 21.818 
                 0.012 
               
            
           
         
       
     
     
       
         
          TABLE #25
           
               
               
               
               
               
               
               
               
             
               
                 Corrosion test results from tests conducted using various synthetic acid blends on QT-800 steel coupons at 200° C. for an exposure time of 2 hours (surface area of 34.31 cm 2  and steel density of 7.86 g/cm 3 ) 
               
               
                 Fluid system 
                 Corrosion Package 
                 Initial Wt. (g) 
                 Final wt. (g) 
                 Loss (g) 
                 Mils/yr 
                 mm/year 
                 lb/ft2 
               
             
            
               
                 50% lysine-HCl 1:4.5 
                 5.5% FCI-B2a 1% CI-1A 
                 40.9424 
                 40.728 
                 0.214 
                 1370.948189 
                 34.822 
                 0.013 
               
               
                 50% lysine-HCl 1:6.5 
                 5.5% FCI- B2a 1% CI-1A 
                 40.6582 
                 40.2635 
                 0.395 
                 2523.849115 
                 64.106 
                 0.024 
               
               
                 50% lysine-HCl 1:6.5 
                 7.5% FCI- B2a 1% CI-1A 
                 41.2752 
                 40.9446 
                 0.331 
                 2113.971415 
                 53.695 
                 0.020 
               
               
                 50% lysine-HCl 1:6.5 
                 8.5% FCI- B2a 1% CI-1A 
                 41.011 
                 40.4755 
                 0.536 
                 3424.173299 
                 86.974 
                 0.032 
               
               
                 50% lysine-HCl 1:6.5 
                 8.5% FCI- B2a 1.25% CI-1A 
                 40.9879 
                 40.5325 
                 0.455 
                 2911.986032 
                 73.964 
                 0.027 
               
               
                 50% lysine-HCl 1:6.5 
                 8.5% FCI- B2a 1% CI-1A 
                 40.6423 
                 40.1602 
                 0.482 
                 3082.715121 
                 78.301 
                 0.029 
               
               
                 50% lysine-HCl 1:4.5 
                 7.5% FCI- B2a 1% CI-1A 
                 40.8089 
                 40.4582 
                 0.351 
                 2242.497807 
                 56.959 
                 0.021 
               
               
                 66% lysine-HCl 1:4.5 
                 7.5% FCI- B2a 1% CI-1A 
                 40.5471 
                 40.2666 
                 0.281 
                 1793.614585 
                 45.558 
                 0.017 
               
               
                 66% lysine-HCl 1:6.5 
                 5.5% FCI- B2a 1% CI-1A 
                 40.3666 
                 38.9679 
                 1.399 
                 8943.774403 
                 227.172 
                 0.084 
               
               
                 66% lysine-HCl 1:6.5 
                 7.5% FCI- B2a 1% CI-1A 
                 40.9341 
                 39.7116 
                 1.223 
                 7817.090304 
                 198.554 
                 0.073 
               
               
                 50% lysine-HCl 1:6.5 
                 7.5% FCI- B2a 1% CI-1A 
                 41.1124 
                 40.7353 
                 0.377 
                 2411.308592 
                 61.247 
                 0.023 
               
               
                 66% lysine-HCl 1:6.5 
                 7.5% FCI- B2a 1% CI-1A 
                 41.0294 
                 40.406 
                 0.623 
                 3986.236479 
                 101.250 
                 0.037 
               
               
                 66% lysine-HCl 1:6.5 
                 7.5% FCI- B2a 1% CI-1A 
                 40.5272 
                 39.8122 
                 0.715 
                 4571.958746 
                 116.128 
                 0.043 
               
               
                 66% lysine-HCl 1:6.5 
                 8.5% FCI- B2a 1.25% CI-1A 
                 40.5157 
                 40.1242 
                 0.392 
                 2503.387202 
                 63.586 
                 0.023 
               
               
                 50% lysine-HCl 1:6.5 
                 5% FCI- B2a 0.5%CI-1A 
                 40.4454 
                 40.2591 
                 0.186 
                 595.6335066 
                 15.129 
                 0.011 
               
               
                 33% lysine-HCl 1:6.5 
                 5% FCI- B2a 0.5%CI-1A 
                 40.435 
                 40.2035 
                 0.232 
                 740.145769 
                 18.800 
                 0.014 
               
            
           
         
       
     
     
       
         
          TABLE #26
           
               
               
               
               
               
               
               
               
               
               
             
               
                 Corrosion test results from tests conducted using various synthetic acid blends on various steel coupons at various temperature and exposure times 
               
               
                 Steel 
                 Fluid 
                 T (°C) 
                 Corrosion inhibitor 
                 Surface area 
                 density 
                 time 
                 Mills/yr 
                 Mm/year 
                 Lb/ft 2 
 
               
             
            
               
                 L80 
                 50% MEA 1:3.5 
                 130 
                 2.0% FCI- B2a 2.5% CI-1A 
                 28.0774 
                 7.86 
                 6 
                 504.248 
                 12.808 
                 0.014 
               
               
                 L80 
                 50% MEA 1:3.5 
                 130 
                 3.0% FCI- B2a 2.5% CI-1A 
                 28.0774 
                 7.86 
                 6 
                 718.345 
                 18.246 
                 0.020 
               
               
                 L80 
                 50% MEA 1:3.5 
                 150 
                 2.0% FCI- B2a 2.5% CI-1A 
                 28.0774 
                 7.86 
                 4 
                 950.543 
                 24.144 
                 0.018 
               
               
                 L80 
                 50% MEA 1:3.5 
                 150 
                 3.0% FCI- B2a 2.5% CI-1A 
                 28.0774 
                 7.86 
                 4 
                 903.661 
                 22.953 
                 0.017 
               
               
                 L80 
                 50% MEA 1:3.5 
                 200 
                 7.5% FCI- B2a 1.0% CI-1A 
                 28.0774 
                 7.86 
                 2 
                 2775.44 
                 70.496 
                 0.026 
               
               
                 L80 
                 50% MEA 1:3.5 
                 110 
                 1.75% FCI- B2a 1%CI-1A 
                 28.0774 
                 7.86 
                 6 
                 200.0322 
                 5.081 
                 0.006 
               
               
                 N80 
                 50% MEA 1:3.5 
                 110 
                 1.75% FCI- B2a 1%CI-1A 
                 28.0774 
                 7.86 
                 6 
                 281.555 
                 7.152 
                 0.008 
               
               
                 L80 
                 50% DEA 1:3.5 
                 110 
                 1.75% FCI- B2a 1%CI-1A 
                 28.0774 
                 7.86 
                 4 
                 651.667 
                 16.552 
                 0.012 
               
               
                 N80 
                 50% DEA 1:3.5 
                 110 
                 1.75% FCI- B2a 1%CI-1A 
                 28.0774 
                 7.86 
                 4 
                 414.519 
                 10.529 
                 0.008 
               
               
                 1018 
                 50% MEA 1:3.5 
                 90 
                 0.75% FCI- B2a 0.25% CI-1A 
                 41.4 
                 7.86 
                 6 
                 170.106 
                 4.321 
                 0.005 
               
               
                 1018 
                 50% DEA 1:3.5 
                 90 
                 0.75% FCI- B2a 0.25% CI-1A 
                 41.4 
                 7.86 
                 6 
                 152.795 
                 3.881 
                 0.004 
               
               
                 1018 
                 50% MEA 1:3.5 
                 90 
                   
                 41.4 
                 7.86 
                 6 
                 14686.06 
                 373.026 
                 0.411 
               
               
                 1018 
                 50% MEA 1:3.5 
                 90 
                 0.25% FCI- B2a 0.15% CI-1A 
                 41.4 
                 7.86 
                 6 
                 1092.88 
                 27.759 
                 0.031 
               
               
                 1018 
                 50% MEA 1:3.5 
                 90 
                 0.50% FCI- B2a 0.15% CI-1A 
                 41.4 
                 7.86 
                 6 
                 696.148 
                 17.682 
                 0.019 
               
               
                 1018 
                 50% MEA 1:5.5 
                 90 
                   
                 41.4 
                 7.86 
                 6 
                 21341.77 
                 542.081 
                 0.598 
               
               
                 1018 
                 50% MEA 1:5.5 
                 90 
                 0.25% FCI- B2a 0.15% CI-1A 
                 41.4 
                 7.86 
                 6 
                 4080.44 
                 103.643 
                 0.114 
               
               
                 1018 
                 50% MEA 1:5.5 
                 90 
                 0.50% FCI- B2a 0.15% CI-1A 
                 41.4 
                 7.86 
                 6 
                 789.23 
                 20.047 
                 0.022 
               
               
                 1018 
                 50% MEA 1:8.5 
                 90 
                   
                 41.4 
                 7.86 
                 6 
                 26288.12 
                 667.718 
                 0.736 
               
               
                 1018 
                 50% MEA 1:8.5 
                 90 
                 0.25% FCI- B2a 0.15% CI-1A 
                 41.4 
                 7.86 
                 6 
                 6798.266 
                 172.676 
                 0.190 
               
               
                 1018 
                 50% MEA 1:8.5 
                 90 
                 0.50% FCI- B2a 0.15% CI-1A 
                 41.4 
                 7.86 
                 6 
                 1415.260 
                 35.948 
                 0.040 
               
               
                 L80 
                 50% MEA 1:3.5 
                 120 
                 0.75% FCI- B2a 0.50% CI-1A 
                 28.0774 
                 7.86 
                 6 
                 765.227 
                 19.437 
                 0.021 
               
               
                 L80 
                 50% MEA 1:3.5 
                 120 
                 1.0% FCI- B2a 0.75% CI-1A 
                 28.0774 
                 7.86 
                 6 
                 858.732 
                 21.812 
                 0.024 
               
               
                 1018 
                 50% MEA 1:3.5 
                 90 
                 0.60% FCI- B2a 0.25% CI-1A 
                 41.4 
                 7.86 
                 6 
                 392.853 
                 9.978 
                 0.011 
               
               
                 1018 
                 50% MEA 1:3.5 
                 90 
                 0.50% FCI- B2a 0.25% CI-1A 
                 41.4 
                 7.86 
                 6 
                 515.972 
                 13.106 
                 0.014 
               
               
                 1018 
                 50% MEA 1:5.5 
                 90 
                 0.60% FCI- B2a 0.25% CI-1A 
                 41.4 
                 7.86 
                 6 
                 345.512 
                 8.776 
                 0.010 
               
               
                 1018 
                 50% MEA 1:5.5 
                 90 
                 0.50% FCI- B2a 0.25% CI-1A 
                 41.4 
                 7.86 
                 6 
                 615.069 
                 15.623 
                 0.017 
               
               
                 1018 
                 50% MEA 1:8.5 
                 90 
                 0.60% FCI- B2a 0.25% CI-1A 
                 41.4 
                 7.86 
                 6 
                 1032.484 
                 26.225 
                 0.029 
               
               
                 1018 
                 50% MEA 1:8.5 
                 90 
                 0.50% FCI- B2a 0.25% CI-1A 
                 41.4 
                 7.86 
                 6 
                 1027.353 
                 26.095 
                 0.029 
               
               
                 N80 
                 50% MEA 1:3.5 
                 90 
                 0.6% FCI- B2a 0.25%CI-1A 
                 28.0774 
                 7.86 
                 6 
                 240.403 
                 6.106 
                 0.007 
               
               
                 J55 
                 50% MEA 1:3.5 
                 90 
                 0.6% FCI- B2a 0.25%CI-1A 
                 28.922 
                 7.86 
                 6 
                 138.310 
                 3.513 
                 0.004 
               
               
                 P110 
                 50% MEA 1:3.5 
                 90 
                 0.6% FCI- B2a 0.25%CI-1A 
                 28.922 
                 7.86 
                 4 
                 364.487 
                 9.258 
                 0.007 
               
               
                 QT900 
                 50% MEA 1:3.5 
                 90 
                 0.6% FCI- B2a 0.25%CI-1A 
                 34.31 
                 7.86 
                 6 
                 93.783 
                 2.382 
                 0.003 
               
               
                 N80 
                 50% MEA 1:3.5 
                 110 
                 0.75% FCI- B2a 0.50% CI-1A 
                 28.0774 
                 7.86 
                 6 
                 396.418 
                 10.069 
                 0.011 
               
               
                 J55 
                 50% MEA 1:3.5 
                 110 
                 0.75% FCI- B2a 0.50%CI-1A 
                 28.922 
                 7.86 
                 6 
                 144.631 
                 3.674 
                 0.004 
               
               
                 P110 
                 50% MEA 1:3.5 
                 110 
                 0.75% FCI- B2a 0.50% CI-1A 
                 28.922 
                 7.86 
                 4 
                 701.286 
                 17.813 
                 0.013 
               
               
                 QT900 
                 50% MEA 1:3.5 
                 110 
                 0.75% FCI- B2a 0.50% CI-1A 
                 34.31 
                 7.86 
                 6 
                 339.966 
                 8.635 
                 0.010 
               
               
                 1018 
                 50% MEA 1:3.5 
                 110 
                 0.75% FCI- B2a 0.50%CI-1A 
                 33.22 
                 7.86 
                 6 
                 313.917 
                 7.974 
                 0.009 
               
               
                 L80 
                 33% MEA 1:3.5 
                 90 
                 0.6% FCI- B2a 0.25% CI-1A 0.1% NE-1 
                 28.0774 
                 7.86 
                 6 
                 278.169 
                 7.066 
                 0.008 
               
               
                 L80 
                 33% MEA 1:3.5 
                 120 
                 0.75% FCI- B2a 0.5% CI-1A 0.1% NE-1 
                 28.0774 
                 7.86 
                 6 
                 798.566 
                 20.284 
                 0.022 
               
               
                 P110 
                 33% MEA 1:3.5 
                 120 
                 0.925% FCI-B2a 0.625% CI-1A 0.1% NE-1 
                 28.922 
                 7.86 
                 6 
                 1398.52 
                 35.523 
                 0.040 
               
               
                 P110 
                 33% MEA 1:3.5 
                 120 
                 1.25% FCI- B2a 0.95% CI-1A 0.1% NE-1 
                 28.922 
                 7.86 
                 6 
                 834.160 
                 21.188 
                 0.024 
               
               
                 P110 
                 50% MEA 1:5.5 
                 90 
                 1% FCI- B2a 1%CI-1A 
                 28.922 
                 7.86 
                 72 
                 66.6477 
                 1.693 
                 0.023 
               
               
                 P110 
                 50% MEA 1:5.5 
                 90 
                 2% FCI- B2a 2% CI-1A 
                 28.922 
                 7.86 
                 72 
                 36.832 
                 0.936 
                 0.013 
               
               
                 P110 
                 50% MEA 1:5.5 
                 90 
                 3% FCI- B2a 3% CI-1A 
                 28.922 
                 7.86 
                 72 
                 34.956 
                 0.888 
                 0.012 
               
               
                 P110 
                 50% MEA 1:5.5 
                 90 
                 2% FCI- B2a 2% CI-1A 
                 28.922 
                 7.86 
                 168 
                 38.0633 
                 0.967 
                 0.031 
               
               
                 P110 
                 50% MEA 1:5.5 
                 90 
                 3% FCI- B2a 3% CI-1A 
                 28.922 
                 7.86 
                 168 
                 33.4307 
                 0.849 
                 0.027 
               
               
                 N80 
                 50% MEA 1:3.5 
                 60 
                 0.25% FCI- B2a 
                 28.0774 
                 7.86 
                 6 
                 123.196 
                 3.129 
                 0.003 
               
               
                 J55 
                 50% MEA 1:3.5 
                 60 
                 0.25% FCI- B2a 
                 28.922 
                 7.86 
                 6 
                 79.901 
                 2.029 
                 0.002 
               
               
                 1018 
                 50% MEA 1:3.5 
                 60 
                 0.25% FCI-B2a 
                 33.22 
                 7.86 
                 6 
                 431.471 
                 10.959 
                 0.012 
               
               
                 J55 
                 50% MEA 1:3.5 
                 130 
                 1.75% FCI- B2a 1.25% CI-1A 
                 28.922 
                 7.86 
                 6 
                 515.313 
                 13.089 
                 0.014 
               
               
                 1018 
                 50% MEA 1:3.5 
                 130 
                 1.75% FCI- B2a 1.25% CI-1A 
                 33.22 
                 7.86 
                 6 
                 1371.683 
                 34.841 
                 0.038 
               
               
                 N80 
                 50% MEA 1:3.5 
                 130 
                 2.25% FCI- B2a 1.75% CI-1A 
                 28.0774 
                 7.86 
                 6 
                 1671.884 
                 42.466 
                 0.047 
               
               
                 1018 
                 50% MEA 1:3.5 
                 130 
                 2.25% FCI- B2a 1.75% CI-1A 
                 33.22 
                 7.86 
                 6 
                 1289.351 
                 32.750 
                 0.036 
               
               
                 N80 
                 50% MEA 1:3.5 
                 150 
                 2.25% FCI- B2a 2.25% CI-1A 
                 28.0774 
                 7.86 
                 4 
                 1498.679 
                 38.066 
                 0.028 
               
               
                 N80 
                 50% MEA 1:3.5 
                 150 
                 2.50% FCI- B2a 2.75% CI-1A 
                 28.0774 
                 7.86 
                 4 
                 1058.373 
                 26.883 
                 0.020 
               
               
                 L80 
                 50% MEA 1:3.5 
                 150 
                 2.0% FCI- B2a 2.5% CI-1A 
                 28.0774 
                 7.86 
                 4 
                 752.465 
                 19.113 
                 0.014 
               
               
                 L80 
                 50% MEA 1:3.5 
                 150 
                 2.5% FCI- B2a 2.5% CI-1A 
                 28.0774 
                 7.86 
                 4 
                 553.604 
                 14.062 
                 0.010 
               
               
                 L80 
                 50% MEA 1:3.5 
                 170 
                 7.5% FCI- B2a 7.5% CI-1A 
                 28.0774 
                 7.86 
                 3 
                 2690.017 
                 68.326 
                 0.038 
               
               
                 L80 
                 50% MEA 1:3.5 
                 120 
                 0.5% FCI- B2a 0.25% CI-1A 
                 28.0774 
                 7.86 
                 3 
                 492.266 
                 12.504 
                 0.007 
               
               
                 L80 
                 50% MEA 1:3.5 
                 120 
                 0.75% FCI- B2a 0.5% CI-1A 
                 28.0774 
                 7.86 
                 3 
                 557.902 
                 14.171 
                 0.008 
               
               
                 L80 
                 33% MEA 1:5.5 
                 120 
                 0.5% FCI- B2a 0.25% CI-1A 
                 28.0774 
                 7.86 
                 3 
                 797.524 
                 20.257 
                 0.011 
               
               
                 L80 
                 33% MEA 1:5.5 
                 120 
                 0.75% FCI- B2a 0.5% CI-1A 
                 28.0774 
                 7.86 
                 3 
                 434.965 
                 11.048 
                 0.006 
               
               
                 L80 
                 33% MEA 1:3.5 
                 120 
                 0.5% FCI- B2a 0.25% CI-1A 
                 28.0774 
                 7.86 
                 3 
                 502.685 
                 12.768 
                 0.007 
               
               
                 L80 
                 33% MEA 1:3.5 
                 120 
                 0.5% FCI- B2a 0.25% CI-1A 
                 28.0774 
                 7.86 
                 4 
                 544.228 
                 13.823 
                 0.010 
               
               
                 L80 
                 33% MEA 1:3.5 
                 120 
                 0.5% FCI- B2a 0.25% CI-1A 
                 28.0774 
                 7.86 
                 5 
                 1210.820 
                 30.755 
                 0.028 
               
               
                 L80 
                 50% MEA 1:3.5 
                 120 
                 0.5% FCI- B2a 0.25% CI-1A 
                 28.0774 
                 7.86 
                 4 
                 566.497 
                 14.389 
                 0.011 
               
               
                 L80 
                 50% MEA 1:3.5 
                 120 
                 0.5% FCI- B2a 0.25% CI-1A 
                 28.0774 
                 7.86 
                 5 
                 984.533 
                 25.007 
                 0.023 
               
               
                 L80 
                 50% MEA 1:3.5 
                 90 
                 1.5% FCI- B2a 1.5% CI-1A 
                 28.0774 
                 7.86 
                 72 
                 59.4062 
                 1.509 
                 0.020 
               
               
                 P110 
                 50% MEA 1:3.5 
                 90 
                 1.5% FCI- B2a 1.5% CI-1A 
                 28.922 
                 7.86 
                 72 
                 41.6996 
                 1.059 
                 0.014 
               
               
                 P110 
                 50% MEA 1:3.5 
                 90 
                 2.0% FCI- B2a 2.0% CI-1A 
                 28.922 
                 7.86 
                 72 
                 38.855 
                 0.987 
                 0.013 
               
               
                 L80 
                 50% MEA 1:5.5 
                 90 
                 0.5% FCI- B2a 0.25% CI-1A 
                 28.0774 
                 7.86 
                 6 
                 278.690 
                 7.079 
                 0.008 
               
               
                 N80 
                 50% MEA 1:5.5 
                 90 
                 0.5% FCI- B2a 0.25% CI-1A 
                 28.0774 
                 7.86 
                 6 
                 175.028 
                 4.446 
                 0.005 
               
               
                 J55 
                 50% MEA 1:5.5 
                 90 
                 0.5% FCI- B2a 0.25% CI-1A 
                 28.922 
                 7.86 
                 6 
                 169.664 
                 4.309 
                 0.005 
               
               
                 P110 
                 50% MEA 1:5.5 
                 90 
                 0.5% FCI- B2a 0.25% CI-1A 
                 28.922 
                 7.86 
                 6 
                 214.418 
                 5.446 
                 0.006 
               
               
                 QT-900 
                 50% MEA 1:5.5 
                 90 
                 0.5% FCI- B2a 0.25% CI-1A 
                 34.31 
                 7.86 
                 6 
                 94.210 
                 2.393 
                 0.003 
               
               
                 1018CS 
                 50% MEA 1:5.5 
                 90 
                 0.5% FCI- B2a 0.25% CI-1A 
                 33.22 
                 7.86 
                 6 
                 1000.529 
                 25.413 
                 0.028 
               
               
                 L80 
                 50% MEA 1:5.5 
                 110 
                 0.75% FCI- B2a 0.5% CI-1A 
                 28.0774 
                 7.86 
                 6 
                 458.407 
                 11.644 
                 0.013 
               
               
                 N80 
                 50% MEA 1:5.5 
                 110 
                 0.75% FCI- B2a 0.5% CI-1A 
                 28.0774 
                 7.86 
                 6 
                 460.490 
                 11.696 
                 0.013 
               
               
                 J55 
                 50% MEA 1:5.5 
                 110 
                 0.75% FCI- B2a 0.5% CI-1A 
                 28.922 
                 7.86 
                 6 
                 147.665 
                 3.751 
                 0.004 
               
               
                 P110 
                 50% MEA 1:5.5 
                 110 
                 0.75% FCI- B2a 0.5% CI-1A 
                 28.922 
                 7.86 
                 6 
                 249.312 
                 6.333 
                 0.007 
               
               
                 QT-900 
                 50% MEA 1:5.5 
                 110 
                 0.75% FCI- B2a 0.5% CI-1A 
                 34.31 
                 7.86 
                 6 
                 165.400 
                 4.201 
                 0.005 
               
               
                 1018CS 
                 50% MEA 1:5.5 
                 110 
                 0.75% FCI- B2a 0.5% CI-1A 
                 33.22 
                 7.86 
                 6 
                 195.262 
                 4.960 
                 0.005 
               
               
                 *NE represents an ethoxylate-based non-emulsifier 
               
            
           
         
       
     
     The results highlight the flexibility of the application of the CI package according to the present invention. Used in appropriate amounts given a specific metal, acidic fluid and temperature, corrosion packages according to preferred embodiments of the present invention can yield desirable corrosion protection. 
     Additionally, corrosion inhibition packages according to preferred embodiments of the present invention will allow the end user to utilize synthetic and modified acids that have the down-hole performance advantages, transportation and storage advantages as well as the health, safety and environmental advantages. The person skilled in the art will also understand that the corrosion package according to the present invention is useful when as also utilized with conventional acid systems. 
     In addition to stability at high temperatures and desirable corrosion rates as discussed above, the use of synthetic and modified acids along with a corrosion package according to a preferred embodiment of the present invention, allows for reduction in skin corrosiveness, a more controlled or methodical spending or reacting property, minimizing near well bore damage typically caused by an ultra-aggressive reaction with the formation typically caused by HCl and increasing formation penetration providing superior production over time. 
     Uses of Corrosion Inhibition Packages According to Preferred Embodiments Of The Present Invention 
     The uses (or applications) of the corrosion inhibition packages according to the present invention when combined (or mixed) with acidic compositions upon dilution of the latter ranging from approximately 1 to 90% dilution, include, but are not limited to: injection/disposal well treatments; matrix acid squeezes, soaks or bullheads; acid fracturing, acid washes; fracturing spearheads (breakdowns); pipeline scale treatments, cement breakdowns or perforation cleaning; pH control; and de-scaling applications. As would be understood by the person skilled in the art, the methods of use generally comprise the following steps: providing a composition comprising a corrosion inhibitor package according to a preferred embodiment of the present; mixing said package with an acid composition; exposing a surface (such as a metal surface) to the acid composition comprising the package; allowing the acid composition a sufficient period of time to act upon said surface; and optionally, removing the acid composition when the exposure time has been determined to be sufficient for the operation to be complete or sufficiently complete. Another method of use comprises: injecting the acid composition comprising the package into a well and allowing sufficient time for the acid composition to perform its desired function. Yet another method of use comprises: exposing the acid composition comprising the package to a body of fluid (typically water) requiring a decrease in the pH and allowing sufficient exposure time for the acid composition to lower the pH to the desired level. 
     One of the advantages of the use of a synthetic acid composition using a corrosion inhibition package according to a preferred embodiment of the present invention includes: the reduction of the total loads of acid, and the required number of tanks by delivering concentrated product to location and diluting with fluids available on location (with low to high salinity production water). 
     An acidic composition comprising a corrosion inhibition package according to a preferred embodiment of the present invention can be used to treat scale formation inside a ultra-high SAGD (steam assisted gravity drainage) well wherein the SAGD or cyclical steam operation is halted and said synthetic or modified acid is injected into said well to treat scale formation inside said well, wherein the treatment does not require a cool-down period between stopping the steam and the injection of the synthetic or modified acid composition. 
     While the foregoing invention has been described in some detail for purposes of clarity and understanding, it will be appreciated by those skilled in the relevant arts, once they have been made familiar with this disclosure that various changes in form and detail can be made without departing from the true scope of the invention in the appended claims.