bluuebunny/crossref_metadata_2025_split huggingface dataset:
Waste Water Disposal Has Become Critical Strategic Focus Area
Authors: Macary Sameh , Tenizbaeva Biganum , Azhigaliyeva Aizada , Yessalieva Arailym , Seitim Malika , Iskakov Elrad 
Published: October 2012

Abstract
Tengizchevroil (TCO) has had up to 20 years of experience in industrial Waste Water Disposal (WWD) into the subsurface. TCO industrial waters cannot be recycled or utilized for any other purposes, hence, malfunction of any component of WWD system (especially wells) can lead to production curtailment. Therefore, TCO has identified the WWD wells as "critical" wells in the business unit.
Waste water is injected into three disposal wells; there are six monitoring wells that provide important information about reservoir pressure, the change in chemical composition of water samples, the fluid level and wellhead performance. Regular surveillance is a key to get data, such as reservoir pressure, temperature, downhole samples, reservoir connectivity, etc. This is important to build the correct reservoir model, both static and dynamic with immediate interest in identifying the water front movement and eventual water breakthrough wells.
In the light of expected operational activities, optimization projects and commercial oil growth, WWD activities are planned to be expanded. Drilling new wells is proposed to add spare injection and monitoring capacity to the project. Additional services, surveillance steps, well geometry and completion design optimization is considered for all new wells.
Cross-functional efforts of subsurface earth scientists and petroleum engineers, lab technicians/facility engineers/environmental specialists/regulatory teams are critical to achieve technical excellence, and hence to fulfil regulatory requirements. Third party involvement in lab analyses and results interpretation strengthens confidence in the operator's efforts to maintain and protect the environment according to official agencies vision.
Self Consistent Approach to Construct Inflow Performance Relationship for Oil Well
Authors: Khasanov Mars , Krasnov Vitaly , Khabibullin Rinat , Musabirov Timur 
Published: October 2012

Abstract
This paper offers a new correlation to construct inflow performance relationship (IPR) for vertical oil well operated under solution gas drive with bottomhole pressure below the bubble poinr pressure. In this case an area with liberated free gas is created in the near-wellbore part of the reservoir. For this case a new functional equation (correlation) for IPR curve in the form of power law is suggested based on the analytical derivation and using pseudopressure function approach. In contrast to the other studies where a parametric IPR equation (usually in the polynomial form) with subsequent selection of coefficients (e.g. Vogel's methodology) was a priory used the new correlation is consistent with the fact of similarity between the oil wells IPR curves built in dimensionless coordinates. In particular case the IPR correlation considered is approximately close to the Vogel's IPR curve which allows using it as Vogel's simple alternative. A modification of the method is suggested. This modification corrects IPR curve behavior in the case of the presence of a transition zone where oil mobility decrease for the pressure values closed to the bubble-point pressure. The paper introduces the justification of the n exponent suggested by Fetkovich IPR and shows how application of new IPR correlation eliminates the contradictions associated with variation range of this parameter. Relations are also proposed to predict the future form of IPR curve and future values of the absolute open flow rate. Based on the large set of numerical calculations the expected values of exponent n for new IPR curve are presented thus they can be applied in the case studies when the experimental data are not available.
Improvement of the efficiency of remaining oil reserves recovery at mature field
Authors: Manapov T. F. , Ruchkin A. A. , Ustyugova E. V. , Levanov A. N. 
Published: October 2012

Abstract
This paper presents the results and the concept of increasing the efficiency of recovering remaining strongly watered hard-to-recover oil reserves based on the example of developing Upper Jurassic reservoirs of a typical field of TNK-BP in Western Siberia, Russia, that has entered the final stage of development. In particular, the paper describes the positive outcome of implementing such technologies as hydraulic fracturing at extremely watered wells, forced liquid withdrawal coupled with targeted focal waterflooding supplemented by flow diverting technologies in injection wells and water shutdown in producers, optimization of perforation intervals, with sidetracks targeting blind unrecovered zones.
The work is different from previous projects in provisioning a comprehensive integrated flow production and injection regulation with low-cost technologies with an emphasis on reducing injection costs and producing liquids to the surface to optimize cash flows. As a result, the accepted recovery concept is described, which provides increased energy efficiency and production profitability, together with targeted production of remaining oil reserves.
Differential Approach to Determination of Compartmentalized Reservoir Properties
Authors: Yudin Evgeniy , Lubnin Alexander , Krasnov Vitaly , Musabirov Timur , Khasanov Mars 
Published: October 2012

Abstract
In this paper a semi-analytical approach for well productivity calculation in low-permeability and highly heterogeneous reservoir is proposed. Model considered allows explaining a high production rate decline for the wells operating in such conditions. Method of different interlayers flow capacity determination is considered based on identification of connected and isolated parts of the reservoir during waterflooding. Integration of rate transient analysis and steady-state production rate evaluation is used. Technique described can be used for the prediction of new wells production rate.
Monitoring Technology for Co-Mingled Tight Play Development with Hydraulic Fractures
Authors: Kokurina V. V. , Kremenetsky M. I. , Melmikov S. I. 
Published: October 2012

Abstract
At present, low-permeability formations become increasingly important in global hydrocarbon production. Simultaneous development of several reservoir zones with single well pattern - along with hydraulic fracturing became the most common for the today's upstream.
At the same time, less attention has been paid so long-term monitoring of such comingled pay zone development with hydraulic fractures. Traditional monitoring methods offer minor benefits in such conditions.
Based on theoretical considerations and numerical modeling of velocity, pressure, and temperature fields in tight formations tapped by hydrofracs (Eclipse 300), the authors proposed a new production monitoring technology. This technology is based on comprehensive production logging and well testing methods and involves the following innovations: It was found that in case of hydraulically fractured pay-zone the fracture will affect spinner logging showing homogeneous flow (injection) profile even in heterogeneous formation. Analysis of transient temperature survey in the assumption of linear geometry of temperature field is proposed as an alternative method.The authors assessed existing capabilities of long-term monitoring of downhole pressure and flow rates under conditions of comingled fractured tight reservoirs development, with individual zone real-time estimation of formation pressure, permeability, and skin factor. To avoid uncertainties of these parameters, the authors justified, in addition to this monitoring technology, the alternating well off take and shutdown cycles.A new methodology for estimation of permeability and skin-factor of individual layers (including the hydrofrac-related ones) based on well monitoring data using permanent downhole monitoring systems.The authors justify a comprehensive approach to tight reservoir development monitoring with hydraulic fractures, based on continuous acquisition, storage, and analysis of long-term, multifaceted survey which is critical for numerical modeling information support.
Do no harm – or when there is an advantage from the oil production equipment failures prediction
Authors: Khabibullin R. , Krasnov V. 
Published: October 2012

Summary
Mean-time-to-failure (MTTF) enhancement is key task for oil production operator. To achieve this goal they increasingly engage remote well stock performance monitoring systems. Regular acquisition of the detailed information on the well performance and the downhole equipment condition facilitate routine well control for the production engineers as well as enables to predict some well performance deviations before they actually arise, for example, oil production declines. Such predictions might initialize actions on the well performance optimization before a failure occurs or operation conditions change. In many cases it could prove to be economically feasible due to less well shutdown period while waiting for the repair teams to arrive.
This report specifies criteria which are crucial for practical implementation of the downhole equipment failure prediction system. The main criterion is the failure time prediction accuracy. In this report "prediction accuracy" notion is described based on the statistical figures reflecting the number of successful predictions. A comparison of economical effectiveness of the various accuracy prediction systems application and existing practical approaches such as "change broken" application is provided as well.
There are applicability maps for the failure prediction systems compiled in terms of Rosneft well stock example. It is shown that the range of application of such systems exists, but is significantly limited.
Oil Production Process Optimization Resultant from Intelligent Field Technologies Implementation in Samotlorskoe Field
Authors: Shevchenko S. D. , Navozov V. A. , Mironov D. V. , Pchelnikov R. L. , Muslimov E. Ya. 
Published: October 2012

Abstract
Nowadays the "Intelligent Field" concept is being actively implemented in TNK-BP, with Samotlorskoe field (OJSC "Samotlorneftegas") at the forefront in this conceptual area.
The term "intelligent field" means arrangement of additional value of oil and gas asset by forming a cycle of gathering of qualitative data, treatment, modeling, decision making and their prompt performance. The concept is implemented step by step. At the first stage of implementation in 2009 – 2010 the main focus was on its technical constituent, the following technologies were reviewed and implemented: –use of different primary transducers for real-time data receiving;–upgrading SCADA, including use of remote control;–use of different real-time expert and simulating systems.
Implementation of such technologies on a large scale adds value to the process of decision-making and oil production control. It has become evident that efficient implementation of technologies is impossible without changing production control processes both at the technological and organizational level. It also becomes essential to organize the process of implementation of such changes.
In 2011 – 2012, in addition to the technical phase, the organizational phase was started in parallel. The issues related to technology influence on the current business processes and organizational changes required for efficient use of the technology were addressed to, the personnel's objectives were reconsidered and the team for implementation of changes was formed.
The paper outlines technical aspects of technologies implementation and evaluates their influence on oil production process. The issues related to changes in organizational structure and business processes relevant to implementation of "intelligent field" technologies are presented. The effect resultant from technology implementation is evaluated.
Assessment of the risk of accidents and hydrocarbon spills on the offshore facilities of the Shtokman gas condensate field development in the Barents Sea
Authors: Jouravel Valentine 
Published: October 2012

Abstract
The report presents the state and results of hazards and risk assessment for the development of the Shtokman gas condensate field (SGCF) in the Barents Sea.
The harsh natural conditions, significant amounts of hazardous substances and the complexity of the project make the necessary detailed assessments of hazards and risks to the identification, understanding, consideration, elimination and/or mitigation the risks as well as the demonstration of the achieved project safety to the public, the authorities and the international partnership. Understandable lack of experience of Russia's offshore oil and gas developments makes hazard and risk assessment and management a significant area of international cooperation.
The report focuses on the risk assessments of major accidents during the construction of offshore facilities, including the drilling of wells with newly-built drilling rigs, operating subsea production system (SPS), ice-resisting floating process unit (FPU), subsea infield and trunk pipelines, shipping and transport of liquid hydrocarbons. Attention is paid to the identification, evaluation and application of international data on failures and accidents during drilling, offshore construction, gas and condensate production and transport.
The report identifies the main sources of probable hydrocarbon spills, specify their character and volume. Hydrocarbon spills behavior and spreading is investigated by modeling with a due account of the observed region specific meteorological, sea and ice conditions. By this zones of potential impacts of spills and the threat of pollution of shorelines and coastal protected areas is identified.
The basic data for planning for hydrocarbon spill response and coast protection (OSR) are obtained with recommendations on the organization and dimensioning parameters of the spills combating system.
Production Monitoring System Application Development in TNK-BP
Authors: Muslimov E. Ya. , Medvedev P. V. , Pchelnikov R. L. , Strugov A. A. , Rekov S. V. 
Published: October 2012

Abstract
The current problem related to poor-quality control of artificial lift operational parameters can be solved by means of development and application or real-time monitoring, control and analysis systems.
As one way to solve this problem, TNK-BP has implemented the real-time SRP monitoring system.
The SRP monitoring system is a specialized SCADA and expert system for SRP. The system displays and analyzes the information from the controllers, gives a possibility of remote control by means of controllers on the wells. SRP controllers are installed on the well sites in order to gather and analyze the data received from the transducers for SRP monitoring and operational control. The controller technology is based on processing a dynagraph for each pump jack stroke, which enables to ensure SRP control as per the rated parameters settings, diagnose the SRP condition, change the operational mode depending on the influx from the formation.
To date the flow rates are measured periodically (once or twice a day), which is not enough.
The monitoring and diagnostics system enables to receive real-time pressure data from the submersible transducer and use this information for automatic calculation of "instantaneous" flow rate. For this purpose the Company carries out pilot projects to try out the submersible telemetry systems (Russian-made) with additional transducers that record pressure and fluid temperature at the submersible pump discharge end and their transmittal to the external devices. Russian manufacturers of submersible telemetry are taking initial steps in producing telemetry systems with additional transducers.
Also, in field development the oil companies face the problem of solids flow-back from the wells.
The use of ultrasonic transducer to evaluate amounts of solids flown back from the well and their type is the most advanced practice. Ultrasonic transducer for solids detection has the following technological advantage: it enables to ensure optimal rate for the complex wells stock by means of data-based control and prompt real-time response to changes.
In this paper the authors described application of such systems.
GIS Technology - A Modern Tool for the Implementation of Environmental Monitoring Programs of JC "Rusvietpetro" LLC in the North-Hosedayuskiy A. Slivki Oil Field: Integrated Environmental Management at the Enterprise
Authors: Glad`ko A. 
Published: October 2012

Abstract
Joint Russian-Vietnamese Company "Rusvietpetro" was established in 2008 to develop oil fields in Russia, the founders of the Company are "Zarubezhneft" PC and "Petrovietnam" OGC.
The operating area is located on the north-eastern section of Bolshezemelskaya tundra (eastern part of the Pechorskaya lowland), which is a hilly plain, cut by a dense river network, with numerous morainal hills and ridges. Natural zone - sub-arctic tundra. The area is virtually unpopulated.
Being aware of its responsibility to preserve a favorable environment and rationally manage natural resources, Management of the Company regularly and systematically fulfills all the requirements of licensing agreements. Significant amounts of funding for environmental programs are considered by the company to be great investments in the future and the guarantee of the environment quality of the regions in which it operates.
Problems and Solutions for Shallow Heavy Oil Production
Authors: Ibatullin R. R. , Ibragimov N. G. , Khisamov R. S. , Zaripov A. T. 
Published: October 2012

Abstract
To-date, more than 450 heavy oil fields and deposits have been identified in the Republic of Tatarstan with oil-in-places ranging between 1.4 and 7.0 billion tons, according to different estimates. Thermal recovery has proved itself as a reliable method and seemed a logical solution however it did not work properly in vertical wells. Building on the experience of development of the Yaregskoye field (the Komi Republic, Russia) and oilsands in the Canadian province of Alberta, the focus was shifted on working out of recovery methods involving horizontal wells. Engineering solutions accounting for concrete geologic environment and the steam assisted gravity drainage method used for production of heavy oil aim at high-quality casing, leak control in the interstring space, sand control, etc. In shallow heavy oil reservoirs with variable oil saturation of utmost importance are production control practices to ensure profitable oil production, to maintain optimal steam-oil ratio and safe operating pressure to ensure cap rock integrity.
Technique and Results of Complex Laboratory Researches of Anisotropic Filtration and Capacity Properties in Cores
Authors: Kadet V. V. , Dmitriev N. M. , Kuzmichev A. N. , Tsybulskiy S. P. 
Published: October 2012

Abstract
In recent years the fields with hard recoverable reserves of hydrocarbons are increasingly involved in the process of developing. Problems of hydrocarbons extraction are often associated with a complex structure of the reservoir which tending to exhibit anisotropy of the filtration properties. Therefore, while researching filtration flows consideration of the anisotropy has both practical and scientific interest. The main source of information about the structure formation and properties is a core material extracted from drilling wells.
In this paper a laboratory technique for determining the absolute permeability tensor in the core has been presented for different types of anisotropy. Technique for determining the lateral anisotropy and further permeability tensors from core is based on propagation of ultrasonic waves velocities being measured through the lateral surface of the core. While using this method at first the existence of the lateral anisotropy is established, and then the type of anisotropy in core is determined. Further according to type of anisotropy established the required number of cores for the hydrodynamic and possibly other researches is sawed from the sample rock.
In this paper the results for determination of the absolute permeability tensor and capillary pressure obtained with the technique proposed have been presented. These results confirm the tensor nature of the absolute permeability, effective diameter and luminal. Determination of phase permeability tensors, limiting gradients and non-linear filtration laws are also possibly within the frames of technique described.
Allowance of the anisotropy of reservoir properties gives more adequate picture of the distribution filtration flow in the reservoir. It allows you to optimize the direction of horizontal drilling, to rationalize development system (placement of wells) and eventually to increase oil recovery.
Project Approach to Staff Training for Divisions, Performing Design and Survey Works on Development of Oil and Gas Fields
Authors: Latyshev Andrey Sergeevich 
Published: October 2012

Summary
The analysis of problem modern oil engineers training is carried out. On the example of scientific research project institute, approaches to implementation of effective development programs and staff training are considered.
The author expresses appreciation and gratitude to: Andrey Yuryevich Dmitriev, PhD in Technical Sciences, Vice-rector Director of the Institute of Natural Resources of NR TPUMikhail Olegovich Pisarev, Director of the DI PP of NR TPUKonstantin Yuryevich Maksyutin, Deputy Director for Professional Development of PLC of the INR of TPU
Integrated Reservoir Modeling of Two Urengoy Gas Fields
Authors: Mustaeva S. , Vasilev V. 
Published: October 2012

Abstract
The paper presents the integrated reservoir simulation and optimization results of two onshore gas fields. The fields are tied to common separator node, and have the similar gas in place volumes and production potentials. The optimal production plan for each field is the goal of the simultaneous development planning. Usually, separate field development plane does not consider surface facilities constraints, so overestimates the gas production amount and project lifetime. However, integrated "reservoir-well-pipeline".model allows to optimize the production system and reach the maximum gas production from each field. This paper presents the two gas field production optimization algorithm, also several development strategies with common production facility constraints are discussed with results. The optimal two-field simultaneous development plan is calculated on integrated computer model taking into account production system constraints.
Geant4 for Solving Nuclear Geophysics Problems
Authors: Velker N. N. , Banzarov B. V. , Inanc F. , Simonov N. A. 
Published: October 2012

Abstract
The results presented in this paper are based on computational experiments aimed at modeling nuclear well-logging tools. Well-logging services require not only development and characterization of nuclear logging tools but also development of algorithms for interpreting measured data with inclusion of various environmental corrections. With nuclear tools, the only feasible way of accomplishing those tasks is using computer simulations based on the radiation transport theory and Monte Carlo methods. Commonly, nuclear well-logging community uses the Monte Carlo N-Particle transport code (MCNP) for such modeling. However, MCNP is not universally available. Therefore, as an alternative, we consider the Geant4 platform developed under the auspices of European Organization for Nuclear Research (CERN) for modeling high-energy physics experiments. The results of various benchmarks of the amended version of Geant4 against MCNP5 are presented. These results clearly indicate that the modified version of Geant4 is capable of solving nuclear geophysics problems with the same accuracy as MCNP.