Abstract:
A fluid loss and dispersant intensifier and method are shown for use in cementing oil and gas well bores. The intensifier includes an ethoxylate and a sulfonated dispersant type material. The intensifier package provides effective fluid loss control without adversely affecting the viscosity of the cement slurry.

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     This invention relates generally to oil and gas well cementing compositions and methods and specifically to an additive package which achieves a highly dispersed, low fluid loss cement composition during placement thereof. 
     2. Description of the Prior Art 
     Cement compositions are used in the oil and gas industry to cement the annular space in the well bore between the surrounding formation and the pipe or casing. Typically the cement slurry is pumped down the inside of the casing and back up the outside of the casing through the annular space. The amount of water which is used in forming the cement slurry will vary depending upon the type of hydraulic cement selected and the job conditions at hand. The amount of water used can vary over a wide range, depending upon such factors as the required consistency of the slurry and upon the strength requirement for a particular job. Many times, the hydraulic cement must be placed within or next to a porous medium, for example earthen strata in the well bore. When this happens, water tends to filter out the of slurry and into the strata during placement and setting of the cement. Many difficulties are related to an uncontrolled fluid loss of this type, such as an uncontrolled setting rate, improper placement of the slurry, impaired strength properties, and a contamination of the surrounding strata. These conditions are all undesirable in oil and gas well cementing operations. 
     In order to lessen the fluid loss from the aqueous cement slurry, various materials have been employed in the past. Known fluid loss additives utilized in cement compositions include cellulosic materials, polysaccharides, polyacrylamides, polyvinyl alcohol, polymethacrylates, polyamines, and polyvinylpyrrolidone. Known cellulosic fluid loss materials include, for example, methylcellulose, carboxymethylcellulose, hydroxyethylcellulose, hydroxymethylcellulose, carboxymethylhydroxyethylcellulose, natural starches and mixtures thereof. The polyamine materials include the polyalkylenepolyamines, polyalkylenimines, and mixtures thereof. 
     Various ethoxylates have also been used in the past in cementing slurries, mainly to reduce air entrainment. See, for example, U.S. Pat. No. 4,351,671, to Rosenberg et al., issued Sep. 28, 1982, in which an ethoxylated nonylphenol is added to a cement slurry containing a lignin type water reducing agent to reduce air entrainment. 
     U.S. Pat. No. 4,209,336, to Previte, issued June 24, 1980, teaches the addition of non-ionic surface active condensation products of octylphenol or nonylphenol with ethylene oxide as compressive strength enhancing additives for hydraulic cement compositions. 
     U.S. Pat. No. 4,398,958 teaches the use of a non-ionic surfactant such as an ethoxylated primary or secondary alcohol or a nonylphenol-ethylene oxide condensate additive to ensure proper distribution of expanded polystyrene beads in a lightweight concrete. 
     We have discovered that the addition of selected ethoxylates surprisingly and unexpectedly improves the fluid loss and dispersant qualities of oil and gas well cementing slurries while maintaining favorable suspension properties. Specifically, the ethoxylates included in the additive package of the invention decrease the viscosity of certain cement slurries while also decreasing fluid loss. 
     SUMMARY OF THE INVENTION 
     A method is shown for cementing a well bore in which a hydraulic cement, water and an additive package are combined. The combined slurry is then pumped to the desired location in the well bore and the cement slurry is allowed to harden to a solid mass. The additive package includes a selected ethoxylate used in conjunction with a dispersant type material. The preferred ethoxylates include ethoxylated alkylphenols, ethoxylated fatty alcohols, ethoxylated amines, ethoxylated amides, ethoxylated fatty acids, ethoxylated diamines and ethoxylated quarternary ammonium chlorides. The dispersant material is preferably a sulfonated dispersant type material such as an anionic surface active agent of the sulfonated naphthalene type. The cement slurry can also have added thereto a water soluble polymeric compound or compounds which act as a fluid loss additive, such compounds including hydroxy-ethylcellulose, carboxymethylhydroxyethylcellulose, polyvinyl alcohol, polyvinylpyrollidone, or a copolymer or terpolymer of 2-acrylamido, 2-methyl propane sulfonic acid/acrylamide/vinylmethyl acetamide. Sodium silicate can be used to strengthen the dispersive and fluid loss characteristics of the slurry. The ethoxylate is preferably present in the range from about 0.1 to 1.0% by weight of the cement. 
     Additional objects, features and advantages will be apparent in the written description which follows. 
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     The term &#34;hydraulic cement&#34; is meant to encompass any cement that hardens or sets under water. Hydraulic cements, for example, include Portland cement, aluminous and pozzolan cements, and the like. The term &#34;hydraulic cement&#34; is also intended to include cements having minor amounts of extenders, such as bentonite, sodium silicate, and also is intended to include cements used either without any appreciable sand or aggregate material, or such cements admixed with a granular filling material, such as sand, ground limestone, and the like. Thus, for example, any of the class &#34;A to H&#34; cements as listed in the API Spec 10, Second Edition, June 1984 are suitable for this purpose. The strength enhancers such as silica powder can also be employed. 
     Mixing water is utilized with the dry cement composition to produce a fluid pumpable slurry of suitable consistency. API Spec 10, Second Edition, June 1984 which is known in the cement industry, describes an approved apparatus and method for measuring the consistency of cement slurries in terms of Bearden units of consistency (Bc). A pumpable slurry should measure in the range from about 2-20 Bc and preferably be in the range from about 5 to 11 Bc. Slurries thinner than about 5 Bc will tend to have greater particle settling and free water generation. Slurries thicker than about 20 Bc become increasingly difficult to mix and pump. 
     Depending upon the particular slurry and intended conditions of use, mixing water is utilized in the slurry of the present invention in the range from about 30 to 150 weight percent based upon the dry weight of cement and preferably is in the range of about 35 to 90 weight percent. 
     The present cement compositions, in addition to hydraulic cement and water in a sufficient amount to produce a pumpable slurry, include an intensifier additive package. The intensifier additive package includes a selected ethoxylate and at least a dispersant type material. The preferred ethoxylate is an ethoxylated surfactant selected from the group consisting of ethoxylated alkylphenols, ethoxylated fatty alcohols, ethoxylated amines, ethoxylated amides, ethoxylated fatty acids, ethoxylated diamines and ethoxylated quarternary ammonium chlorides. 
     The ethoxylated alkyl phenols are commercially available, non-ionic surfactants prepared by condensing an alkyl phenol, for instance octylphenol or nonylphenol with a varying number of moles of ethylene oxide. The preferred ethoxylated alkyl phenols have the general formula: ##STR1## in which R is octyl or nonyl and n is in the range from about 1.5 to 150. The ethoxylated alkylphenol is preferably present in the range from about 0.1 to 1.0% by weight of cement. 
     The ethoxylate can also be an ethoxylated primary or secondary alcohol, or an ethoxylated fatty alcohol of the general formula: 
     
         RO[CH.sub.2 CH.sub.2 O].sub.n H 
    
     in which R has about 12 to 28 carbon atoms and n is in the range from about 2 to 80. 
     Preferably, the primary or secondary alcohols contain from about 3 to about 18 carbon atoms ethoxylated with 2 to 80 moles of ethylene oxide. Examples of preferred alcohols include n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, isopentryl, tert-pentyl, n-hexyl, n-heptyl, n-octyl alcohols, 2 methyl-1-butanol, and the like. Also included among the preferred fatty alcohols are fatty alcohols with carbon chain lengths of about 16 to 18. The ethoxylated alcohol component is preferably present in the range from about 0.1 to 1.0% by weight of cement. 
     The preferred ethoxylated amines have the general formula: ##STR2## where x+y is in the range from about 2 to 50 and R has about 1 to 28 carbons in the carbon chain. 
     The preferred ethoxylated amines include, for example, polyoxyethylene (15) talloamine, polyoxyethylene (10) aliphatic N-tallow-1,3-diaminpropane, polyoxyethylene (10) cocoamine, polyoxyethylene (10) octadecylamine, polyoxyethylene (10) soyamine, polyoxyethylene (15) aliphatic oleylamine, and polyoxyethylene (25) stearylamine. The ethoxylated amine can be present in the range from about 0.1 to 1.0% by weight of cement. 
     Other preferred ethoxylates include those having the following structural formulas: ##STR3## 
     In each of the above cases, x+y is preferably in the range from about 2 to 50 and R has about 1-28 carbons. 
     Preferred amides include polyoxyethylene (7) oleamide and polyoxyethylene (5-50) talloamide. Preferred ammonium chlorides include methylpolyoxyethylene (15) cocoammonium chloride, methylpolyoxyethylene (15) octadecylammonium chloride, and methylpolyoxyethylene (15) oleylammonium chloride. The ethoxylate or ethoxylate mixture is present in the range from about 0.1 to 1.0%, by weight of cement. 
     The intensifier package also includes a dispersant, companion material for the selected ethoxylate. By &#34;dispersant&#34; material is meant an anionic surface active agent of the sulfonated naphthalene type. Such materials are typically lower molecular weight materials with molecular weights ranging from about 1000 to 10,000. A 95% active powder is available under the trademark LOMAR D and is known in the industry. The dispersant type material is preferably present in the range from about 0.1 to 2.0% by weight of cement. 
     The intensifier package can also be used with one or more water soluble polymeric compounds which can be present alone or blended to form a fluid loss blend. The preferred water soluble polymeric compounds include one or more of the cellulosic fluid loss materials selected from the group consisting of: methylcellulose, carboxymethylcellulose, hydroxyethylcellulose, hydroxymethylcellulose, carboxymethylhydroxyethylcellulose, natural starches and mixtures thereof. The preferred water soluble polymeric compounds can also be selected from the group consisting of polysaccharides, polyacrylamides, polyvinyl alcohol, polymethacrylates, polyamines and polyvinylpyrrolidone. Copolymers or terpolymers of 2-acrylamido, 2-methyl propane sulfonic acid/acrylamide/vinylmethyl acetamide are also known as fluid loss additives for oil well cements and can be utilized with the intensifier package of the invention. A particularly preferred water soluble polymeric compound is polyvinyl alcohol. 
     The fluid loss additive or additive blend is generally present in the range from about 0.1 to 2.0% by weight of cement. 
     Under some conditions, a silica material, preferably sodium silicate, can be used to strengthen the dispersive and fluid loss characteristics of the cement slurries of the invention. The sodium silicate is preferably present in the range from about 0.1 to 1.0% by weight of cement. 
     In the method of cementing a well bore with the intensifier package, a hydraulic cement, water and other additives are mixed together to form a pumpable slurry. The intensifier package is generally present in the slurry in the range from about 0.1 to 3.0% by weight of cement and preferably in the range from about 0.1 to 1.5% by weight of dry cement. The cement slurry so prepared is then pumped to the desired location in the well bore and allowed to harden to form a solid mass. 
     The following examples are intended to be illustrative of the invention. The abbreviations used in the tables have the following meanings: 
     PPG--pounds per gallon 
     GPS--gallons per sack 
     DIS--sulfonated naphthalene type dispersant 
     PVA--polyvinyl alcohol 
     LCA--long chain alcohol defoamer 
     Ethox--ethoxylate additive 
     TT--thickening time in hours 
     FL--fluid loss in milliliters 
     AC--aluminum chlorohydrate 
     SM--sodium metasilicate 
     HEC--hydroxyethyl cellulose 
     FLA--blended fluid loss additive containing HEC, naphthalene sulfonic acid and polyvinylpyrollidone 
     FLB--blended fluid loss additive containing PVA, HEC, naphthalene sulfonic acid famaldehyde condensate and polyvinyl alcohol 
     FLC--2-acrylamide, 2-methyl propane sulfonic acid/acrylamide/vinyl methyl acetamide fluid loss additive 
     CMHEC--carboxymethyl hydroxyethyl cellulose 
     KCl--potassium chloride 
     NaCl--sodium chloride 
     FLD--blended fluid loss additive containing DIS, polyoxyethylene (25) stearylamine and LCA 
     FLE--blended fluid loss additive containing DIS, polyoxyethylene (15) tallowamine and LCA 
     TFR--turbulent flow rate 
     RUN 1--6.5&#34; hole; 5.5&#34; casing 
     RUN 2--6&#34; hole; 4.5&#34; casing 
     Standard API viscosity and fluid loss tests were conducted on the cement slurries. 
     
                                           TABLE 1__________________________________________________________________________Ce-               Additives                  Rheologyment   Den.     Water         Temp         Ethox                           TFR   TT FL  (Fann Viscometer at 80 and                                        120° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           1  2  HRS                                    MLS 600                                           300                                              200                                                 100                                                    6  3__________________________________________________________________________RUN 1    G  15.8     4.89          80 -- -- -- --   -- -- -- --  96 61 53 41 22 13RUN 2    G  15.8     4.89         120 -- -- -- --   8.03                              9.47                                 2:13                                    1100+                                        84 61 54 44 15  8__________________________________________________________________________ Comments: Base cement slurry for comparison. 
    
     
                                           TABLE 2__________________________________________________________________________Ce-               Additives                  Rheologyment   Den.     Water         Temp         Ethox                           TFR   TT FL  (Fann Viscometer at 80 and                                        120° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           1  2  HRS                                    MLS 600                                           300                                              200                                                 100                                                    6  3__________________________________________________________________________RUN 1    G  15.8     4.89          80 0.7                0.4                   0.2                      --   -- -- -- --  159                                           99 77 49 30 28RUN 2    G  15.8     4.89         120 0.7                0.4                   0.2                      --   6.99                              6.58                                 -- 622 126                                           81 64 44 20 15__________________________________________________________________________ Comments: Slurry was difficult to mix and exhibited high gel strengths. 
    
     
                                           TABLE 3__________________________________________________________________________Ce-               Additives                  Rheologyment   Den.     Water         Temp         Ethox                           TFR   TT FL  (Fann Viscometer at 80 and                                        120° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           1  2  HRS                                    MLS 600                                           300                                              200                                                 100                                                    6  3__________________________________________________________________________RUN 1    G  15.8     4.89          80 0.8                0.4                   0.2                      --   -- -- -- --  161                                           90 63 35  5  4RUN 2    G  15.8     4.89         120 0.8                0.4                   0.2                      --   6.24                              6.30                                 4:14                                    520 130                                           84 63 43 33 25__________________________________________________________________________ Comments: Although this slurry had lower primary gel strengths, it was still difficult to mix, and were unable to maintain a vortex. This slurry also gelled with increased temperature. 
    
     
                                           TABLE 4__________________________________________________________________________Ce-               Additives                  Rheologyment   Den.     Water         Temp         Ethox                           TFR   TT FL  (Fann Viscometer at 80 and                                        120° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           1  2  HRS                                    MLS 600                                           300                                              200                                                 100                                                    6  3__________________________________________________________________________RUN 1    G  15.8     4.89          80 0.8                0.3                   0.2                      --   -- -- -- --  131                                           98 75 54 31 28RUN 2    G  15.8     4.89         120 0.8                0.3                   0.2                      --   -- -- -- 646 130                                           86 69 48 19 13__________________________________________________________________________ Comments: This slurry was difficult to mix and exhibited high gel strengths. 
    
     
                                           TABLE 5__________________________________________________________________________Ce-               Additives                  Rheologyment   Den.     Water         Temp         Ethox                           TFR   TT FL  (Fann Viscometer at 80 and                                        120° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           1  2  HRS                                    MLS 600                                           300                                              200                                                 100                                                    6  3__________________________________________________________________________RUN 1    G  15.8     4.89          80 0.8                0.325                   0.2                      --   -- -- -- --  152                                           95 72 47 27 25RUN 2    G  15.8     4.89         120 0.8                0.325                   0.2                      --   -- -- -- 522 126                                           89 72 52 22 18__________________________________________________________________________ Comments: This slurry was difficult to mix and exhibited high gel strengths. 
    
     
                                           TABLE 6__________________________________________________________________________Ce-               Additives                  Rheologyment   Den.     Water         Temp         Ethox                           TFR   TT FL  (Fann Viscometer at 80 and                                        120° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           1  2  HRS                                    MLS 600                                           300                                              200                                                 100                                                    6  3__________________________________________________________________________RUN 1    G  15.8     4.89          80 0.9                0.325                   0.2                      --   -- -- -- --  126                                           95 76 55 39 26RUN 2    G  15.8     4.89         120 0.9                0.325                   0.2                      --   -- -- -- 557 114                                           81 65 46 18 13__________________________________________________________________________ Comments: This slurry was difficult to mix and exhibited high gel strengths. 
    
     
                                           TABLE 7__________________________________________________________________________Ce-               Additives                  Rheologyment   Den.     Water         Temp         Ethox                           TFR   TT FL  (Fann Viscometer at 80 and                                        120° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           1  2  HRS                                    MLS 600                                           300                                              200                                                 100                                                    6  3__________________________________________________________________________RUN 1    G  15.8     4.89          80 0.7                0.4                   0.2                      0.1* -- -- -- --  127                                           70 50 29 11 11RUN 2    G  15.8     4.89         120 0.7                0.4                   0.2                      0.1* 5.13                              5.45                                 -- 465  94                                           64 55 41 29 18__________________________________________________________________________ *Comments: The addition of 0.1% ethoxylated nonylphenol improved mixing and lowered fluid loss. 
    
     
                                           TABLE 8__________________________________________________________________________Ce-               Additives                  Rheologyment   Den.     Water         Temp         Ethox                           TFR   TT FL  (Fann Viscometer at 80 and                                        120° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           1  2  HRS                                    MLS 600                                           300                                              200                                                 100                                                    6  3__________________________________________________________________________RUN 1    G  15.8     4.89          80 0.7                0.4                   0.2                      0.2* -- -- -- --  121                                           70 50 29 3  2RUN 2    G  15.8     4.89         120 0.7                0.4                   0.2                      0.2* 4.00                              3.74                                 -- 247  76                                           43 31 17 6  6__________________________________________________________________________ *Comments: The addition of 0.2% ethoxylated nonylphenol improved mixing, did not viscosify with temperature and reduced fluid loss. 
    
     
                                           TABLE 9__________________________________________________________________________Ce-               Additives                  Rheologyment   Den.     Water         Temp         Ethox                           TFR   TT FL  (Fann Viscometer at 80 and                                        120° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           1  2  HRS                                    MLS 600                                           300                                              200                                                 100                                                    6  3__________________________________________________________________________RUN 1    G  15.8     4.89          80 0.8                0.4                   0.2                      --   -- -- -- --  161                                           90 63 35  5  4RUN 2    G  15.8     4.89         120 0.8                0.4                   0.2                      --   6.24                              6.30                                 4:14                                    520 130                                           83 63 43 33 25__________________________________________________________________________ Comments: Even with increased dispersant, the slurry was hard to mix and viscosifie with temperature. 
    
     
                                           TABLE 10__________________________________________________________________________Ce-               Additives                  Rheologyment   Den.     Water         Temp         Ethox                           TFR   TT FL  (Fann Viscometer at 80 and                                        120° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           1  2  HRS                                    MLS 600                                           300                                              200                                                 100                                                    6  3__________________________________________________________________________RUN 1    G  15.8     4.89          80 0.8                0.4                   -- 0.2* -- -- -- --  112                                           59 40 22 3  2RUN 2    G  15.8     4.89         120 0.8                0.4                   -- 0.2* 3.77                              3.43                                 3:05                                    30   73                                           39 28 16 4  3__________________________________________________________________________ *Comments: Addition of 0.2% ethoxylated nonylphenol with no defoamer added. 
    
     
                                           TABLE 11__________________________________________________________________________Ce-               Additives                  Rheologyment   Den.     Water         Temp         Ethox                           TFR   TT FL  (Fann Viscometer at 80 and                                        120° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           1  2  HRS                                    MLS 600                                           300                                              200                                                 100                                                    6  3__________________________________________________________________________RUN 1    G  15.8     4.89          80 0.8                0.4                   -- 0.2* -- -- -- --  112                                           57 40 21 3  2RUN 2    G  15.8     4.89         120 0.8                0.4                   -- 0.2* 4.16                              3.70                                 3:29                                    31   82                                           42 29 16 2    1.5__________________________________________________________________________ *Comments: Addition of 0.2% ethoxylated octylphenol with no defoamer. 
    
     
                                           TABLE 12__________________________________________________________________________Ce-               Additives                  Rheologyment   Den.     Water         Temp         Ethox                           TFR   TT FL  (Fann Viscometer at 80 and                                        120° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           1  2  HRS                                    MLS 600                                           300                                              200                                                 100                                                    6  3__________________________________________________________________________RUN 1    G  15.8     4.89          80 0.8                0.4                   -- 0.2* -- -- -- --  102                                           52 35 18 2  1RUN 2    G  15.8     4.89         120 0.8                0.4                   -- 0.2* 3.41                              3.06                                 4:02                                    20   68                                           34.5                                              24 13 2    1.5__________________________________________________________________________ *Comments: Addition of 0.2% ethoxylated fatty alcohol. 
    
     
                                           TABLE 13__________________________________________________________________________Ce-               Additives                    Rheology (Fannment   Den.     Water         Temp         Ethox   TFR   TT FL Viscometer at 80 and                                          150° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           SM 1  2  HRS                                       MLS                                          600                                             300                                                200                                                   100                                                      6 3__________________________________________________________________________RUN 1    G  15.8     4.89          80 0.85                0.5                   -- 0.2* -- -- -- -- -- 140                                             71 50 25 3 2RUN 2    G  15.8     4.89         150 0.85                0.5                   -- 0.2* -- 3.65                                 3.28                                    -- 54  69                                             37 26 14 2  2__________________________________________________________________________ Comments: By increasing the fluid loss additive and dispersant slightly, the data generated at 120° F. was duplicated using the ethoxylated nonylphenol. 
    
     
                                           TABLE 14__________________________________________________________________________Ce-               Additives                    Rheology (Fannment   Den.     Water         Temp         Ethox   TFR   TT FL Viscometer at 80 and                                          150° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           SM 1  2  HRS                                       MLS                                          600                                             300                                                200                                                   100                                                      6 3__________________________________________________________________________RUN 1    G  15.8     4.89          80 0.85                0.5                   -- 0.2* -- -- -- -- -- 142                                             74 51 27 3 2RUN 2    G  15.8     4.89         150 0.85                0.5                   -- 0.2* -- 3.76                                 3.37                                    -- 40  73                                             38 27 14 2  2__________________________________________________________________________ Comments: The same test was duplicated using the ethoxylated octylphenol. 
    
     
                                           TABLE 15__________________________________________________________________________Ce-               Additives                    Rheology (Fannment   Den.     Water         Temp         Ethox   TFR   TT FL Viscometer at 80 and                                          150° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           SM 1  2  HRS                                       MLS                                          600                                             300                                                200                                                   100                                                      6 3__________________________________________________________________________RUN 1    G  15.8     4.89          80 0.85                0.5                   -- 0.2* -- -- -- -- -- 130                                             66 45 24 3 2RUN 2    G  15.8     4.89         150 0.85                0.5                   -- 0.2* -- 3.76                                 3.38                                    -- 44  72                                             38 27 15 2  2__________________________________________________________________________ *Comments: The same test was duplicated using the ethoxylated fatty alcohol. 
    
     
                                           TABLE 16__________________________________________________________________________Ce-               Additives                    Rheology (Fannment   Den.     Water         Temp         Ethox   TFR   TT FL Viscometer at 80 and                                          175° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           SM 1  2  HRS                                       MLS                                          600                                             300                                                200                                                   100                                                      6 3__________________________________________________________________________RUN 1    G  15.8     4.89          80 0.95                0.6                   -- 0.2* -- -- -- -- -- 159                                             88 60 32 3 2RUN 2    G  15.8     4.89         175 0.95                0.6                   -- 0.2* -- 3.92                                 3.56                                    -- 30  72                                             40 29 17 3  2__________________________________________________________________________ *Comments: Increasing the fluid loss and dispersant allowed the temperature to be raised to 175° F., and the data was again duplicated using ethoxylated nonylphenol. The base slurries without any of the ethoxylates were run, and again the high viscosities prohibited the generation of data. 
    
     
                                           TABLE 17__________________________________________________________________________Ce-               Additives                    Rheology (Fannment   Den.     Water         Temp         Ethox   TFR   TT FL Viscometer at 80 and                                          175° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           SM 1  2  HRS                                       MLS                                          600                                             300                                                200                                                   100                                                      6 3__________________________________________________________________________RUN 1    G  15.8     4.89          80 0.95                0.6                   -- 0.2* -- -- -- -- -- 161                                             87 60 32 4 2RUN 2    G  15.8     4.89         175 0.95                0.6                   -- 0.2* -- 3.92                                 3.60                                    -- 39  74                                             41 29 17 4  4__________________________________________________________________________ *Comments: Addition of 0.2% ethoxylated octylphenol. 
    
     
                                           TABLE 18__________________________________________________________________________Ce-               Additives                    Rheology (Fannment   Den.     Water         Temp         Ethox   TFR   TT FL Viscometer at 80 and                                          175° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           SM 1  2  HRS                                       MLS                                          600                                             300                                                200                                                   100                                                      6 3__________________________________________________________________________RUN 1    G  15.8     4.89          80 0.95                0.6                   -- 0.2* -- -- -- -- -- 152                                             80 55 29 3 2RUN 2    G  15.8     4.89         175 0.95                0.6                   -- 0.2* -- 3.48                                 3.17                                    -- 30  68                                             36 25 14 3  3__________________________________________________________________________ *Comments: Addition of 0.2% ethoylated fatty alcohol. 
    
     
                                           TABLE 19__________________________________________________________________________Ce-               Additives                    Rheology (Fannment   Den.     Water         Temp         Ethox   TFR   TT FL Viscometer at 80 and                                          200° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           SM 1  2  HRS                                       MLS                                          600                                             300                                                200                                                   100                                                      6 3__________________________________________________________________________RUN 1    G  15.8     4.89          80 1.05                0.7                   -- 0.2* -- -- -- -- -- 191                                             107                                                74 39 4 5RUN 2    G  15.8     4.89         200 1.05                0.7                   -- 0.2* -- -- -- -- -- -- -- -- -- -- --__________________________________________________________________________ *Comments: With the addition of 0.2% ethoxylated nonylphenol, this slurry was easily mixed at 80° F., but viscosified at 200° F., and the rheologies were unobtainable. 
    
     
                                           TABLE 20__________________________________________________________________________Ce-               Additives                    Rheology (Fannment   Den.     Water         Temp         Ethox   TFR   TT FL Viscometer at 80 and                                          200° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           SM 1  2  HRS                                       MLS                                          600                                             300                                                200                                                   100                                                      6 3__________________________________________________________________________RUN 1    G  15.8     4.89          80 1.05                0.7                   -- 0.5* -- -- -- -- -- 178                                             92 64 34  3                                                         2RUN 2    G  15.8     4.89         200 1.05                0.7                   -- 0.5* -- 6.74                                 6.99                                    -- -- 163                                             98 73 50 40 41__________________________________________________________________________ *Comments: By increasing the ethoxylated nonylphenol to 0.5%, the rheologies were obtained, but the slurry still viscosified to an unacceptable level. 
    
     
                                           TABLE 21__________________________________________________________________________Ce-               Additives                    Rheology (Fannment   Den.     Water         Temp         Ethox   TFR   TT FL Viscometer at 80 and                                          200° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           SM 1  2  HRS                                       MLS                                          600                                             300                                                200                                                   100                                                      6 3__________________________________________________________________________RUN 1    G  15.8     4.89          80 1.20                0.7                   -- .25* -- -- -- -- -- 220                                             120                                                84 45  5                                                         3RUN 2    G  15.8     4.89         200 1.20                0.7                   -- .25* -- 6.37                                 5.95                                    -- -- 118                                              74                                                53 33 14 15__________________________________________________________________________ *Comments: By increasing the dispersant and decreasing the ethoxylated nonylphenol, this slurry still viscosified with temperature. 
    
     
                                           TABLE 22__________________________________________________________________________Ce-               Additives                    Rheology (Fannment   Den.     Water         Temp         Ethox   TFR   TT FL Viscometer at 80 and                                          200° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           SM 1  2  HRS                                       MLS                                          600                                             300                                                200                                                   100                                                      6 3__________________________________________________________________________RUN 1    G  15.8     4.89          80 1.05                0.7                   -- .25* 0.1                              -- -- -- -- 207                                             112                                                78 41  4                                                         3RUN 2    G  15.8     4.89         200 1.05                0.7                   -- .25* 0.1                              6.46                                 6.05                                    -- -- 115                                              76                                                54 34 15 16__________________________________________________________________________ *Comments: With the addition of 0.1% sodium metasilicate with ethoxylated nonylphenol, the viscosity at temperature lessened, but the gels were unacceptable. 
    
     
                                           TABLE 23__________________________________________________________________________Ce-               Additives                    Rheology (Fannment   Den.     Water         Temp         Ethox   TFR   TT FL Viscometer at 80 and                                          200° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           SM 1  2  HRS                                       MLS                                          600                                             300                                                200                                                   100                                                      6 3__________________________________________________________________________RUN 1    G  15.8     4.89          80 1.05                0.7                   -- .25* 0.2                              -- -- -- -- 215                                             120                                                83 45 5 3RUN 2    G  15.8     4.89         200 1.05                0.7                   -- .25* 0.2                              4.21                                 3.78                                    -- 28  79                                              43                                                30 17 3  2__________________________________________________________________________ *Comments: The addition of 0.2% sodium metasilicate to the above slurry decreased th rheologies and gels. 
    
     
                                           TABLE 24__________________________________________________________________________Ce-               Additives                    Rheology (Fannment   Den.     Water         Temp         Ethox   TFR   TT FL Viscometer at 80 and                                          200° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           SM 1  2  HRS                                       MLS                                          600                                             300                                                200                                                   100                                                      6 3__________________________________________________________________________RUN 1    G  15.8     4.89          80 1.05                0.6                   -- .25* 0.2                              -- -- -- -- 176                                             93 65 35 4 3RUN 2    G  15.8     4.89         200 1.05                0.6                   -- .25* 0.2                              3.73                                 3.33                                    -- 34  70                                             38 26 14 2  2__________________________________________________________________________ *Comments: Decreasing the fluid loss additive to 0.6% while maintaining the ethoxylated nonylphenol and sodium metasilicate levels increased the mixing ease of the slurry and maintained good solids suspension. 
    
     
                                           TABLE 25__________________________________________________________________________Ce-               Additives                    Rheology (Fannment   Den.     Water         Temp         Ethox   TFR   TT FL Viscometer at 80 and                                          200° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           SM 1  2  HRS                                       MLS                                          600                                             300                                                200                                                   100                                                      6 3__________________________________________________________________________RUN 1    G  15.8     4.89          80 1.05                0.6                   -- .25* 0.2                              -- -- -- -- 170                                             89 62 33 4 2RUN 2    G  15.8     4.89         200 1.05                0.6                   -- .25* 0.2                              4.03                                 3.63                                    -- 36  76                                             41 29 17 3  2__________________________________________________________________________ *Comments: Duplication of previous test with the substitution of ethoxylated octylphenol. 
    
     
                                           TABLE 26__________________________________________________________________________Ce-               Additives                    Rheology (Fannment   Den.     Water         Temp         Ethox   TFR   TT FL Viscometer at 80 and                                          200° F.)Class  PPG     GPS °F.             DIS                PVA                   LCA                      Additive                           SM 1  2  HRS                                       MLS                                          600                                             300                                                200                                                   100                                                      6 3__________________________________________________________________________RUN 1    G  15.8     4.89          80 1.05                0.6                   -- .25* 0.2                              -- -- -- -- 170                                             91 64 34 4 3RUN 2    G  15.8     4.89         200 1.05                0.6                   -- .25* 0.2                              3.73                                 3.37                                    -- 31  71                                             38 27 15 3  2__________________________________________________________________________ *Comments: Duplication of above test with the substitution of ethoxylated fatty alcohol. 
    
     
                                           TABLE 27__________________________________________________________________________               Additives           RheologyCement   Den.       Water           Temp         Ethox                             TT FL (Fann Viscometer at 80 and                                   175° F.)Class    PPG       GPS °F.               DIS                  FLA                     FLB                        Additive                             HRS                                MLS                                   600                                      300                                         200                                            100                                               6  3__________________________________________________________________________RUN 1    G    15.8       4.89            80 1  0.4                     -- --   -- -- 141                                      72 58 43 31 28RUN 2    G    15.8       4.89           175 1  0.4                     -- --   -- 104                                    86                                      41 27 14 2  1__________________________________________________________________________ 
    
     
                                           TABLE 28__________________________________________________________________________               Additives           RheologyCement   Den.       Water           Temp         Ethox                             TT FL (Fann Viscometer at 80 and                                   175° F.)Class    PPG       GPS °F.               DIS                  FLA                     FLB                        Additive                             HRS                                MLS                                   600                                      300                                         200                                            100                                               6  3__________________________________________________________________________RUN 1    G    15.8       4.89            80 1  0.4                     -- 0.2* -- -- 125                                      64 45 25 3  2RUN 2    G    15.8       4.89           175 1  0.4                     -- 0.2* -- 172                                    79                                      40 28 15 2  1__________________________________________________________________________ *Comment: Additive of 0.2% ethoxylated nonylphenol. 
    
     
                                           TABLE 29__________________________________________________________________________               Additives           RheologyCement   Den.       Water           Temp         Ethox                             TT FL (Fann Viscometer at 80 and                                   175° F.)Class    PPG       GPS °F.               DIS                  FLA                     FLB                        Additive                             HRS                                MLS                                   600                                      300                                         200                                            100                                               6  3__________________________________________________________________________RUN 1    G    15.8       4.89            80 1  0.4                     -- 0.2* -- -- 123                                      63 44 24 3  2RUN 2    G    15.8       4.89           175 1  0.4                     -- 0.2* -- 146                                    68                                      33 22 11 2  1__________________________________________________________________________ *Comment: Addition of 0.2% ethoxylated fatty alcohol. 
    
     
                                           TABLE 30__________________________________________________________________________               Additives           RheologyCement   Den.       Water           Temp         Ethox                             TT FL (Fann Viscometer at 80 and                                   175° F.)Class    PPG       GPS °F.               DIS                  FLA                     FLB                        Additive                             HRS                                MLS                                   600                                      300                                         200                                            100                                               6  3__________________________________________________________________________RUN 1    G    15.8       4.89            80 1  -- 0.4                        --   -- -- 155                                      101                                         82 56 38 34RUN 2    G    15.8       4.89           175 1  -- 0.4                        --   -- 319                                    74                                       38                                         27 15 2  2__________________________________________________________________________ 
    
     
                                           TABLE 31__________________________________________________________________________               Additives           RheologyCement   Den.       Water           Temp         Ethox                             TT FL (Fann Viscometer at 80 and                                   175° F.)Class    PPG       GPS °F.               DIS                  FLA                     FLB                        Additive                             HRS                                MLS                                   600                                      300                                         200                                            100                                               6  3__________________________________________________________________________RUN 1    G    15.8       4.89            80 1  -- 0.4                        0.2* -- -- 125                                      66 47 26 4  3RUN 2    G    15.8       4.89           175 1  -- 0.4                        0.2* -- 105                                    60                                      30 21 11 2  1__________________________________________________________________________ *Comment: Addition of 0.2% ethoxylated nonylphenol. 
    
     
                                           TABLE 32__________________________________________________________________________               Additives           RheologyCement   Den.       Water           Temp         Ethox                             TT FL (Fann Viscometer at 80 and                                   175° F.)Class    PPG       GPS °F.               DIS                  FLA                     FLB                        Additive                             HRS                                MLS                                   600                                      300                                         200                                            100                                               6  3__________________________________________________________________________RUN 1    G    15.8       4.89            80 1  -- 0.4                        0.2* -- -- 114                                      59 40 22 3  2RUN 2    G    15.8       4.89           175 1  -- 0.4                        0.2* -- 97  55                                      27 18  9 2  1__________________________________________________________________________ *Comment: Addition of 0.2% ethoxylated fatty alcohol. 
    
     
                                           TABLE 33__________________________________________________________________________               Additives           RheologyCement   Den.       Water           Temp         Ethox                             TT FL (Fann Viscometer at 80 and                                   175° F.)Class    PPG       GPS °F.               DIS                  FLC                     LCA                        Additive                             HRS                                MLS                                   600                                      300                                         200                                            100                                               6  3__________________________________________________________________________RUN 1    G    15.8       4.89            80 1  .25                     -- --   -- -- 87 45 32 18 4  4RUN 2    G    15.8       4.89           175 1  .25                     -- --   -- 245                                   66 37 28 17 5  6__________________________________________________________________________ 
    
     
                                           TABLE 34__________________________________________________________________________               Additives           RheologyCement   Den.       Water           Temp         Ethox                             TT FL (Fann Viscometer at 80 and                                   175° F.)Class    PPG       GPS °F.               DIS                  FLC                     LCA                        Additive                             HRS                                MLS                                   600                                      300                                         200                                            100                                               6  3__________________________________________________________________________RUN 1    G    15.8       4.89            80 1  .25                     -- 0.2* -- -- 84 44 31 13 3  3RUN 2    G    15.8       4.89           175 1  .25                     -- 0.2* -- 209                                   57 31 22 13 3  3__________________________________________________________________________ *Comment: Addition of 0.2% ethoxylated nonylphenol. 
    
     
                                           TABLE 35__________________________________________________________________________               Additives           RheologyCement   Den.       Water           Temp         Ethox                             TT FL (Fann Viscometer at 80 and                                   175° F.)Class    PPG       GPS °F.               DIS                  FLC                     LCA                        Additive                             HRS                                MLS                                   600                                      300                                         200                                            100                                               6  3__________________________________________________________________________RUN 1    G    15.8       4.89            80 1  .25                     -- 0.2* -- -- 89 45 31 17 3  2RUN 2    G    15.8       4.89           175 1  .25                     -- 0.2* -- 201                                   53 27 19 10 2  2__________________________________________________________________________ *Comment: Addition of 0.2% ethoxylated fatty alcohol. 
    
     
                                           TABLE 36__________________________________________________________________________               Additives    Cement    Den.       Water           Temp         Ethox    Class    PPG       GPS °F.               DIS                  PVA                     LCA                        Additive                             KCl                                NaCl__________________________________________________________________________RUN 1    G    15.8       4.98            80 .95                  0.6                     -- 0.2* 3  --RUN 2    G    15.8       4.98           175 .95                  0.6                     -- 0.2* 3  --__________________________________________________________________________               RheologyTFR         TT  FL  (Fann Viscometer at 80 and 175° F.)    1    2  HRS MLS 600                  300                     200                        100  6  3__________________________________________________________________________RUN 1    --   -- --  --  149                  78 55 31   4  3RUN 2    2.47 2.43       --  22   53                  27 19 10   2  2__________________________________________________________________________ *Comment: Addition of 0.2% ethoxylated nonylphenol. 
    
     
                                           TABLE 37__________________________________________________________________________               Additives    Cement    Den.       Water           Temp         Ethox    Class    PPG       GPS °F.               DIS                  PVA                     LCA                        Additive                             KCl                                NaCl__________________________________________________________________________RUN 1    G    15.8       4.96            80 .95                  0.6                     -- 0.2* -- 3RUN 2    G    15.8       4.96           175 .95                  0.6                     -- 0.2* -- 3__________________________________________________________________________               RheologyTFR         TT  FL  (Fann Viscometer at 80 and 175° F.)    1    2  HRS MLS 600                  300                     200                        100  6  3__________________________________________________________________________RUN 1    --   -- --  --  156                  85 60 33   5  4RUN 2    2.87 2.78       --  18   60                  31 22 12   2  2__________________________________________________________________________ *Comment: Addition of 0.2% ethoxylated nonylphenol. 
    
     
                                           TABLE 38__________________________________________________________________________               Additives    Cement    Den.       Water           Temp         Ethox    Class    PPG       GPS °F.               DIS                  PVA                     LCA                        Additive                             KCl                                NaCl__________________________________________________________________________RUN 1    G    15.8       5.02            80 .85                  0.6                     -- 0.2* -- 6RUN 2    G    15.8       5.02           175 .85                  0.6                     -- 0.2* -- 6__________________________________________________________________________               RheologyTFR         TT  FL  (Fann Viscometer at 80 and 175° F.)    1    2  HRS MLS 600                  300                     200                        100  6  3__________________________________________________________________________RUN 1    --   -- --  --  178                  105                     82 54   25 23RUN 2    2.96 2.93       --  178  64                   33                     23 13    3  3__________________________________________________________________________ *Comment: Addition of 0.2% ethoxylated nonylphenol. 
    
     
                                           TABLE 39__________________________________________________________________________               Additives    Cement    Den.       Water           Temp         Ethox    Class    PPG       GPS °F.               DIS                  PVA                     LCA                        Additive                             KCl                                NaCl__________________________________________________________________________RUN 1    G    15.8       5.00            80 .95                  .65   0.4* -- 6RUN 2    G    15.8       5.00           175 .95                  .65   0.4* -- 6__________________________________________________________________________               RheologyTFR         TT  FL  (Fann Viscometer at 80 and 175° F.)    1    2  HRS MLS 600                  300                     200                        100  6  3__________________________________________________________________________RUN 1    --   -- --  --  143                  68 50 29   7  7RUN 2    3.32 3.23       --  48   70                  37 25 14   3  3__________________________________________________________________________ *Comment: Addition of 0.4% ethoxylated nonylphenol. 
    
     
                                           TABLE 40__________________________________________________________________________               AdditivesCement   Den.       Water           Temp         EthoxClass    PPG       GPS °F.               DIS                  PVA                     LCA                        Additive                             KCl                                NaCl__________________________________________________________________________RUN 1    G    15.8       5.08            80 .95                  .65                     -- 0.4* -- 10RUN 2    G    15.8       5.08           175 .95                  .65                     -- 0.4* -- 10__________________________________________________________________________                    Rheology (Fann        TFR   TT FL Viscometer at 80 and 175° F.)        1  2  HRS                 MLS                    600                       300                          200                             100                                6 3__________________________________________________________________________    RUN 1        -- -- -- -- 94 48 34 20 4 4    RUN 2        2.09           2.26              -- 705                    50 24 17 10 3 3__________________________________________________________________________ *Comment: Addition of 0.4% ethoxylated nonylphenol. 
    
     
                                           TABLE 41__________________________________________________________________________               AdditivesCement   Den.       Water           Temp           Ethox                               TFRClass    PPG       GPS °F.               DIS                  HEC                     CMHEC                          Additive                               1  2__________________________________________________________________________RUN 1    G    15.8       4.89            80 1.5                  .25                     --   --   -- --RUN 2    G    15.8       4.89           175 1.5                  .25                     --   --   -- --__________________________________________________________________________                     Rheology (Fann               TT FL Viscometer at 80 and 175° F.)               HRS                  MLS                     600                        300                           200                              100                                 6 3__________________________________________________________________________           RUN 1               -- -- 171                        88 73 56 42                                   37           RUN 2               -- 260                      91                        56 49 39 29                                   19__________________________________________________________________________ 
    
     
                                           TABLE 42__________________________________________________________________________               AdditivesCement   Den.       Water           Temp           Ethox                               TFRClass    PPG       GPS °F.               DIS                  HEC                     CMHEC                          Additive                               1  2__________________________________________________________________________RUN 1    G    15.8       4.89            80 1.5                  .25                     --   0.2* -- --RUN 2    G    15.8       4.89           175 1.5                  .25                     --   0.2* -- --__________________________________________________________________________                     Rheology (Fann               TT FL Viscometer at 80 and 175° F.)               HRS                  MLS                     600                        300                           200                              100                                 6 3__________________________________________________________________________           RUN 1               -- -- 194                        102                           71 39 5 3           RUN 2               -- 95  81                         49                           35 20 3 2__________________________________________________________________________ *Comment: Addition of 0.2% ethoxylated nonylphenol. 
    
     
                                           TABLE 43__________________________________________________________________________               AdditivesCement   Den.       Water           Temp           Ethox                               TFRClass    PPG       GPS °F.               DIS                  HEC                     CMHEC                          Additive                               1  2__________________________________________________________________________RUN 1    G    15.8       4.89            80 1.5                  .25                     --   0.2* -- --RUN 2    G    15.8       4.89           175 1.5                  .25                     --   0.2* -- --__________________________________________________________________________                     Rheology (Fann               TT FL Viscometer at 80 and 175° F.)               HRS                  MLS                     600                        300                           200                              100                                 6 3__________________________________________________________________________           RUN 1               -- -- 180                        98 69 37 4 3           RUN 2               -- 81  67                        35 24 13 2 2__________________________________________________________________________ *Comment: Addition of 0.2% ethoxylated fatty alcohol. 
    
     
                                           TABLE 44__________________________________________________________________________               AdditivesCement   Den.       Water           Temp           Ethox                               TFRClass    PPG       GPS °F.               DIS                  HEC                     CMHEC                          Additive                               1  2__________________________________________________________________________RUN 1    G    15.8       4.89            80 1.5                  -- .25  --   -- --RUN 2    G    15.8       4.89           175 1.5                  -- .25  --   -- --__________________________________________________________________________                     Rheology (Fann               TT FL Viscometer at 80 and 175° F.)               HRS                  MLS                     600                        300                           200                              100                                 6 3__________________________________________________________________________           RUN 1               -- -- 115                        67 50 33 12                                   12           RUN 2               -- 98  57                        28 19 10  2                                    1__________________________________________________________________________ 
    
     
                                           TABLE 45__________________________________________________________________________               AdditivesCement   Den.       Water           Temp           Ethox                               TFRClass    PPG       GPS °F.               DIS                  HEC                     CMHEC                          Additive                               1  2__________________________________________________________________________RUN 1    G    15.8       4.89            80 1.5                  -- .25  0.2* -- --RUN 2    G    15.8       4.89           175 1.5                  -- .25  0.2* -- --__________________________________________________________________________                     Rheology (Fann               TT FL Viscometer at 80 and 175° F.)               HRS                  MLS                     600                        300                           200                              100                                 6 3__________________________________________________________________________           RUN 1               -- -- 110                        59 41 24 4 3           RUN 2               -- 126                      62                        32 22 12 2 1__________________________________________________________________________ *Comment: Addition of 0.2% ethoxylated nonylphenol. 
    
     
                                           TABLE 46__________________________________________________________________________               AdditivesCement   Den.       Water           Temp           Ethox                               TFRClass    PPG       GPS °F.               PVA                  HEC                     CMHEC                          Additive                               1  2__________________________________________________________________________RUN 1    G    15.8       4.89            80 1.5                  -- .25  0.2* -- --RUN 2    G    15.8       4.89           175 1.5                  -- .25  0.2* -- --__________________________________________________________________________                     Rheology (Fann               TT FL Viscometer at 80 and 175° F.)               HRS                  MLS                     600                        300                           200                              100                                 6 3__________________________________________________________________________           RUN 1               -- -- 126                        65 45 25 3 2           RUN 2               -- 104                      55                        27 18  9 2 1__________________________________________________________________________ *Comment: Addition of 0.2% ethoxylated fatty alcohol. 
    
     
                                           TABLE 47__________________________________________________________________________               AdditivesCement   Den.       Water           Temp         Ethox                             TFRClass    PPG       GPS °F.               PVA                  DIS                     AC Additive                             1  2__________________________________________________________________________RUN 1    H    16.2       4.56            80 0.7                  0.4                     0.2                        --   -- --RUN 2    H    16.2       4.56           150 0.7                  0.4                     0.2                        --   8.08                                7.57__________________________________________________________________________                  Rheology (Fann            TT FL Viscometer at 80 and 150° F.)            HRS               MLS                  600                     300 200                            100                               6 3__________________________________________________________________________        RUN 1            -- -- 246                     139 95 49  5                                  4        RUN 2            3:28               466                  154                     99.5                         77 50 26                                 21__________________________________________________________________________ Comment: The slurry completely closed vortex at low speed before all cement was added. After about 10 seconds the vortex returned and mixing was completed. 
    
     
                                           TABLE 48__________________________________________________________________________               AdditivesCement   Den.       Water           Temp         Ethox                             TFRClass    PPG       GPS °F.               PVA                  DIS                     AC Additive                             1  2__________________________________________________________________________RUN 1    H    16.2       4.56            80 0.7                  0.4                     0.2                        0.2* -- --RUN 2    H    16.2       4.56           150 0.7                  0.4                     0.2                        0.2* 5.06                                4.99__________________________________________________________________________                   Rheology (Fann             TT FL Viscometer at 80 and 150° F.)             HRS                MLS                   600                      300                         200                            100                               6 3__________________________________________________________________________         RUN 1             -- -- 249                      140                         97 51 5 4         RUN 2             3:29                38 119                       59                         41.5                            23 4 3.5__________________________________________________________________________ 
    
     
                                           TABLE 49__________________________________________________________________________               AdditivesCement   Den.       Water           Temp         Ethox                             TFRClass    PPG       GPS °F.               PVA                  DIS                     AC Additive                             1  2__________________________________________________________________________RUN 1    H    16.2       4.56            80 0.7                  0.4                     0.2                        0.2* -- --RUN 2    H    16.2       4.56           150 0.7                  0.4                     0.2                        0.2* 5.47                                4.88__________________________________________________________________________                  Rheology (Fann            TT FL Viscometer at 80 and 150° F.)            HRS               MLS                  600 300                         200                            100                               6 3__________________________________________________________________________        RUN 1            -- -- 232 128                         88 45.5                               4 3        RUN 2            -- 34 111.5                       58                         40 22 4 3.5__________________________________________________________________________ *Comment: Addition of 0.2% polyoxyethylene (15) talloamine. 
    
     
                                           TABLE 50__________________________________________________________________________               AdditivesCement   Den.       Water           Temp         Ethox                             TFRClass    PPG       GPS °F.               PVA                  DIS                     AC Additive                             1  2__________________________________________________________________________RUN 1    H    16.2       4.56            80 0.7                  0.4                     0.2                        0.2* -- --RUN 2    H    16.2       4.56           150 0.7                  0.4                     0.2                        0.2* 5.56                                4.97__________________________________________________________________________                   Rheology (Fann             TT FL Viscometer at 80 and 150° F.)             HRS                MLS                   600                      300                         200                            100                               6 3__________________________________________________________________________         RUN 1             -- -- 234                      126                         87 45 4 2.5         RUN 2             -- 29 112                       59                         41 22.5                               4 4__________________________________________________________________________ *Comment: Addition of 0.2% polyoxyethylene (10) aliphatic Ntallow-1,3-diaminpropane. 
    
     
                                           TABLE 51__________________________________________________________________________               AdditivesCement   Den.       Water           Temp         Ethox                             TFRClass    PPG       GPS °F.               PVA                  DIS                     AC Additive                             1  2__________________________________________________________________________RUN 1    H    16.2       4.56            80 0.7                  0.4                     0.2                        0.2* -- --RUN 2    H    16.2       4.56           150 0.7                  0.4                     0.2                        0.2* 5.25                                4.88__________________________________________________________________________                  Rheology (Fann            TT FL Viscometer at 80 and 150° F.)            HRS               MLS                  600                     300 200                            100                               6 3__________________________________________________________________________        RUN 1            -- -- 235                     126 87 45 4 2.5        RUN 2            -- 297                  113                     59.5                         43 26 9 9.5__________________________________________________________________________ *Comment: Addition of 0.2% polyoxyethylene (1) glycol oleate. 
    
     
                                           TABLE 52__________________________________________________________________________               Additives                  Rheology (FannCement   Den.       Water           Temp         Ethox                             TFR   TT FL Viscometer at 80 and                                         150° F.)Class    PPG       GPS °F.               PVA                  DIS                     AC Additive                             1  2  HRS                                      MLS                                         600                                            300                                               200                                                  100                                                     6 3__________________________________________________________________________RUN 1    H    16.2       4.56            80 0.7                  0.4                     0.2                        0.2* -- -- -- -- 212                                            117.5                                               82 43 5 4RUN 2    H    16.2       4.56           150 0.7                  0.4                     0.2                        0.2* 5.59                                5.00                                   -- 50 114.5                                             59.5                                               41.5                                                  23 4.5                                                       4__________________________________________________________________________ *Comments: Addition of 0.2% polyoxyethylene (10) cocoamine. 
    
     
                                           TABLE 53__________________________________________________________________________               Additives                  Rheology (FannCement   Den.       Water           Temp         Ethox                             TFR   TT FL Viscometer at 80 and                                         150° F.)Class    PPG       GPS °F.               PVA                  DIS                     AC Additive                             1  2  HRS                                      MLS                                         600                                            300                                               200                                                  100                                                     6 3__________________________________________________________________________RUN 1    H    16.2       4.56            80 0.7                  0.4                     0.2                        0.2* -- -- -- -- 227                                            124                                               85 44 4 2.5RUN 2    H    16.2       4.56           150 0.7                  0.4                     0.2                        0.2* 5.52                                4.95                                   -- 34 114.5                                             59                                               41.5                                                  23 5 4.5__________________________________________________________________________ *Comments: Addition of 0.2% polyoxyethylene (10) octadecylamine. 
    
     
                                           TABLE 54__________________________________________________________________________               Additives                  Rheology (FannCement   Den.       Water           Temp         Ethox                             TFR   TT FL Viscometer at 80 and                                         150° F.)Class    PPG       GPS °F.               PVA                  DIS                     AC Additive                             1  2  HRS                                      MLS                                         600                                            300                                               200                                                  100                                                     6 3__________________________________________________________________________RUN 1    H    16.2       4.56            80 0.7                  0.4                     0.2                        0.2* -- -- -- -- 224                                            123                                               84 44 4 2.5RUN 2    H    16.2       4.56           150 0.7                  0.4                     0.2                        0.2* 5.45                                4.88                                   -- 28 110.5                                             58                                               40.5                                                  22.5                                                     4.5                                                       4__________________________________________________________________________ *Comments: Addition of 0.2% polyoxyethylene (10) soyamine. 
    
     
                                           TABLE 55__________________________________________________________________________               Additives                  Rheology (FannCement   Den.       Water           Temp         Ethox                             TFR   TT FL Viscometer at 80 and                                         150° F.)Class    PPG       GPS °F.               PVA                  DIS                     AC Additive                             1  2  HRS                                      MLS                                         600                                            300                                               200                                                  100                                                     6 3__________________________________________________________________________RUN 1    H    16.2       4.56            80 0.7                  0.4                     0.2                        0.2* -- -- -- -- 229                                            122                                               84.5                                                  44 3.5                                                       2.5RUN 2    H    16.2       4.56           150 0.7                  0.4                     0.2                        0.2* 5.16                                4.51                                   3:32                                      24 106                                             54.5                                               38 21 3.5                                                       3.5__________________________________________________________________________ *Comments: Polyoxyethylene (15) aliphatic oleylamine. 
    
     
                                           TABLE 56__________________________________________________________________________               Additives                  Rheology (FannCement   Den.       Water           Temp         Ethox                             TFR   TT FL Viscometer at 80 and                                         150° F.)Class    PPG       GPS °F.               PVA                  DIS                     AC Additive                             1  2  HRS                                      MLS                                         600                                            300                                               200                                                  100                                                     6 3__________________________________________________________________________RUN 1    H    16.2       4.56            80 0.7                  0.4                     0.2                        0.2* -- -- -- -- 232                                            129                                               88.5                                                  47 5 3.5RUN 2    H    16.2       4.56           150 0.7                  0.4                     0.2                        0.2* 6.06                                5.42                                   -- 222                                         121                                             65                                               45 26 5 5__________________________________________________________________________ *Comments: Addition of 0.2% methylpolyoxyethylene (15) cocoammonium chloride. 
    
     
                                           TABLE 57__________________________________________________________________________               Additives                  Rheology (FannCement   Den.       Water           Temp         Ethox                             TFR   TT FL Viscometer at 80 and                                         150° F.)Class    PPG       GPS °F.               PVA                  DIS                     AC Additive                             1  2  HRS                                      MLS                                         600                                            300                                               200                                                  100                                                     6 3__________________________________________________________________________RUN 1    H    16.2       4.56            80 0.7                  0.4                     0.2                        0.2* -- -- -- -- 248                                            133                                               91.5                                                  47.5                                                     3 2RUN 2    H    16.2       4.56           150 0.7                  0.4                     0.2                        0.2* 5.58                                4.97                                   -- 55 116                                             58.5                                               41 22.5                                                     2 2__________________________________________________________________________ *Comments: Addition of 0.2% methylpolyoxyethylene (15) octadecylammonium chloride. 
    
     
                                           TABLE 58__________________________________________________________________________               Additives                  Rheology (FannCement   Den.       Water           Temp         Ethox                             TFR   TT FL Viscometer at 80 and                                         150° F.)Class    PPG       GPS °F.               PVA                  DIS                     AC Additive                             1  2  HRS                                      MLS                                         600                                            300                                               200                                                  100                                                     6 3__________________________________________________________________________RUN 1    H    16.2       4.56            80 0.7                  0.4                     0.2                        0.2* -- -- -- -- 229.5                                            123                                               84 43.5                                                     4.5                                                       3RUN 2    H    16.2       4.56           150 0.7                  0.4                     0.2                        0.2* 5.04                                4.50                                   3:08                                      46 107.5                                             53                                               37 20 3.5                                                       3__________________________________________________________________________ *Comments: Addition of 0.2% methylpolyoxyethylene (15) oleylammonium chloride. 
    
     
                                           TABLE 59__________________________________________________________________________               Additives                  Rheology (FannCement   Den.       Water           Temp         Ethox                             TFR   TT FL Viscometer at 80 and                                         150° F.)Class    PPG       GPS °F.               PVA                  DIS                     AC Additive                             1  2  HRS                                      MLS                                         600                                            300                                               200                                                  100                                                     6 3__________________________________________________________________________RUN 1    H    16.2       4.56            80 0.7                  0.4                     0.2                        0.2* -- -- -- -- 262                                            149.5                                               102                                                  53.5                                                     4.5                                                       3RUN 2    H    16.2       4.56           150 0.7                  0.4                     0.2                        0.2* 5.30                                4.77                                   3:06                                      55 107                                             57                                                39.5                                                  22.5                                                     5 4.5__________________________________________________________________________ *Comments: Addition of 0.2% polyoxyethylene (7) oleamide. 
    
     
                                           TABLE 60__________________________________________________________________________               Additives    Cement    Den.       Water           Temp         Ethox    Class    PPG       GPS °F.               PVA                  DIS                     AC Additive                             FLD                                FLE__________________________________________________________________________RUN 1    H    16.2       4.56            80 0.7                  0.4                     0.2                        --   -- --RUN 2    H    16.2       4.56           150 0.7                  0.4                     0.2                        --   -- --__________________________________________________________________________               RheologyTFR         TT  FL  (Fann Viscometer at 80 and 150°F.)    1    2  HRS MLS 600                  300                     200                        100  6  3__________________________________________________________________________RUN 1    --   -- --  --  246                  139                     95 49   5  4RUN 2    8.08 7.57       --  466 154                   99.5                     77 50   26 21__________________________________________________________________________ 
    
     
                                           TABLE 61__________________________________________________________________________               Additives    Cement    Den.       Water           Temp         Ethox    Class    PPG       GPS °F.               PVA                  DIS                     AC Additive                             FLD                                FLE__________________________________________________________________________RUN 1    H    16.2       4.56            80 0.7                  -- 0.2                        --   0.4                                --RUN 2    H    16.2       4.56           150 0.7                  -- 0.2                        --   -- --__________________________________________________________________________               RheologyTFR         TT  FL  (Fann Viscometer at 80 and 150°F.)    1    2  HRS MLS 600                  300                     200                        100  6  3__________________________________________________________________________RUN 1    --   -- --  --  255                  134                     93 49   4  2RUN 2    4.82 4.28       --  71  107                   50                     35 19   2.5                                2__________________________________________________________________________ 
    
     
                                           TABLE 62__________________________________________________________________________               Additives    Cement    Den.       Water           Temp         Ethox    Class    PPG       GPS °F.               PVA                  DIS                     AC Additive                             FLD                                FLE__________________________________________________________________________RUN 1    H    16.2       4.56            80 0.7                  -- 0.2                        --   -- 0.4RUN 2    H    16.2       4.56           150 0.7                  -- 0.2                        --   -- --__________________________________________________________________________               RheologyTFR         TT  FL  (Fann Viscometer at 80 and 150°F.)    1    2  HRS MLS 600                  300                     200                        100  6  3__________________________________________________________________________RUN 1    --   -- --  --  278                  146                     103                        56   8  6RUN 2    5.88 5.26       --  212 114                   63                      44                        24   5  5__________________________________________________________________________ 
    
     An invention has been provided with several advantages. The intensifier additive package of the invention can be used with other water soluble polymers to provide a cement slurry with desirable fluid loss and dispersive characteristics over a wide range of temperatures. The intensifier package provides greatly improved results over the use of polyoxyethylene (n) fatty alkylamines, ethoxylated alkyl phenols, ethoxylated fatty alcohols, sulfonated dispersant type materials, and the like. 
     While the invention has been shown in only one of its forms, it is not thus limited but is susceptible to various changes and modifications without departing from the spirit thereof.