Journal articles on the topic 'Oil fields – Production methods'
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1
Mustafaev, K. I. "Development of efficiency increase methods for water injection." Azerbaijan Oil Industry, no. 5 (May 15, 2020): 57–60. http://dx.doi.org/10.37474/0365-8554/2020-5-57-60.
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The production of residual oil reserves in the fields being in a long-term exploitation is of current interest. The extraction of residual oil in such fields was cost-effective and simple technological process and is always hot topic for researchers. Oil wells become flooded in the course of time. The appearance of water shows in production wells in the field development and operation is basically negative occurrence and requires severe control. Namely for this reason, the studies were oriented, foremost, to the prevention of water shows in production well and the elimination of its complications as well. The paper discusses the ways of reflux efficiency increase during long-term exploitation and at the final stages of development to prevent the irrigation and water use in production wells.
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Saurabh Goswami and Dr. T. S. Chouhan. "Evaluation of Artificial Lift Methods to Increase Oil Production from Depleting Oil Wells in Gulf of Mexico." International Journal of Engineering and Management Research 10, no. 5 (October 31, 2020): 137–41. http://dx.doi.org/10.31033/ijemr.10.5.22.
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This paper summarizes the research work with reference to artificial lift methods to increase oil production form mature oil wells in Gulf of Mexico.
Increase oil production or oil recovery from oil reservoirs is very important. If the average worldwide recovery factor from hydrocarbon reservoirs can be increased beyond current limits, it will alleviate a number of issues related to global energy supply. Currently the daily oil production comes from mature or maturing oil fields and reserves replacement is not keeping pace with the growing energy demand.
This paper presents big picture overview of artificial lift methods for mature oil wells in Gulf of Mexico.
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Merlini Giuliani, Caio, and Eduardo Camponogara. "Derivative-free methods applied to daily production optimization of gas-lifted oil fields." Computers & Chemical Engineering 75 (April 2015): 60–64. http://dx.doi.org/10.1016/j.compchemeng.2015.01.014.
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Ramazanov, D. "Organizational and Economic Problems of Enhanced Oil Recovery in Russian Fields." Voprosy Ekonomiki, no. 8 (August 20, 2007): 123–33. http://dx.doi.org/10.32609/0042-8736-2007-8-123-133.
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Modern conditions and problems of development of the oil-production industry in Russia are considered in article. It is shown that the present structure of oil resources will not provide oil production according to estimates of the Energy Strategy to 2020. The program of increasing hydrocarbon exploration for oil fields and provinces accepted by the Ministry of Natural Resources of RF due to inefficient state regulation is lagging behind the schedule. We suggest that the federal program on introduction of modern enhanced oil recovery methods providing both the growth of oil production in the nearest 5-15 years and more efficient use of oil resources through increase of oil extraction ratio be accepted as an alternative strategy of development of oil production. The US experience of effective resources using and its applicability for the Russian oil-production industry are also considered in the article.
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Chudinova, D. Yu, Y. D. B. Atse, R. M. Minniakhmetova, and M. Yu Kotenev. "Classification of residual oil reserves and methods of its recovery." SOCAR Proceedings, no. 2 (June 30, 2021): 26–33. http://dx.doi.org/10.5510/ogp20210200492.
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Many oil and gas fields are currently at a late stage of development, while most of them are being developed using flooding. These fields are characterized by the decreasing oil and liquid flow rates and accelerating water-cut. During the development process, the majority of oil reserves are extracted not using methods of production enhancement. Though, oil reserves within undeveloped areas are a valuable source for recovery. To involve residual reserves in active development, it is necessary to make a reasonable justification and a choice of the most effective geological and technical measures that take into account various geological field and well reservoir characteristics. Residual oil reserves at the late stage of development are classified as hard-to-recover and are mainly concentrated in areas not covered by flooding laterally and vertically. They belong to various categories that differ in the geological and technological characteristics. In this regard, it is necessary to plan various geological and technical measures taking into account the structure of residual reserves and patterns of their distribution. Studies of complex oil and gas fields were performed and a detailed analysis of the geological and physical characteristics, parameters of reservoir heterogeneity along with operational, geological and commercial assessment of reserves development were conducted.
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Sagbana, Perekaboere Ivy, and Ahmad Sami Abushaikha. "A comprehensive review of the chemical-based conformance control methods in oil reservoirs." Journal of Petroleum Exploration and Production Technology 11, no. 5 (April 17, 2021): 2233–57. http://dx.doi.org/10.1007/s13202-021-01158-6.
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AbstractThe production of excess water during oil recovery creates not only a major technical problem but also an environmental and cost impact. This increasing problem has forced oil companies to reconsider methods that promote an increase in oil recovery and a decrease in water production. Many techniques have been applied over the years to reduce water cut, with the application of chemicals being one of them. Chemicals such as polymer gels have been widely and successfully implemented in several oil fields for conformance control. In recent years, the application of foam and emulsions for enhanced oil recovery projects has been investigated and implemented in oil fields, but studies have shown that they can equally act as conformance control agents with very promising results. In this paper, we present a comprehensive review of the application of polymer gel, foam and emulsion for conformance control. Various aspects of these chemical-based conformance control methods such as the mechanisms, properties, applications, experimental and numerical studies and the parameters that affect the successful field application of these methods have been discussed in this paper. Including the recent advances in chemical-based conformance control agents has also been highlighted in this paper.
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Sabanina, I. G., T. V. Semenova, Yu Ya Bolshakov, and S. V. Vorobjeva. "The use of data on capillary pressures in the development of deposits in the Middle Ob region." Oil and Gas Studies, no. 4 (September 9, 2021): 61–72. http://dx.doi.org/10.31660/0445-0108-2021-4-61-72.
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Currently, most of the oil fields in the West Siberian oil and gas province are in the final stage of development. There is water-cut in production, a decrease in oil production, and the structure of residual reserves deteriorates. The search and application of the most successful scientific methods and technologies for improving oil recovery in the development of fields is quite an urgent task.It should be taken into account that hydrophobic reservoirs are common in the oil fields of Western Siberia, and when applying the method of reservoir flooding, this fact should be taken into account and a more detailed approach should be taken to the study of capillary forces to prevent flooding of productive objects. Despite the good knowledge of the West Siberian megabasin, some fundamental issues of its structure and oil and gas potential remain debatable.The article proposes methods for improving oil recovery of the BS10 formation of the Ust-Balykskoye oil field based on the study of capillary pressures in productive reservoir formations, and provides recommendations for the placement of injection wells. The study of the capillary properties of reservoir rocks will significantly improve the efficiency of exploration and field operations in oil fields.
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Ponomarenko, Tatyana, Oksana Marinina, Marina Nevskaya, and Kristina Kuryakova. "Developing Corporate Sustainability Assessment Methods for Oil and Gas Companies." Economies 9, no. 2 (April 14, 2021): 58. http://dx.doi.org/10.3390/economies9020058.
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As it is predicted that there will be a decrease in production at the oil and gas facilities that are currently operating, it becomes necessary to start developing new oil and gas fields. This results in changes to the state’s policy regarding the participation of private companies in the development and implementation of oil and gas offshore exploration and production new projects. Access to unique fields can be provided to the most socially responsible companies. The purpose of this study is to present the author’s methodology for assessing the dynamics of corporate sustainability. The methodology is based on the assessment of individual, well-founded indicators of sustainable development of companies. The proposed methodology takes into account factors in areas such as occupational health and safety, environmental protection and economic efficiency and identifies two performance indicators. The first indicator is an aggregated index for three groups of factors to assess company ratings relative to the performance of the best company. The second indicator is an assessment of the dynamics within the company relative to the previous values of indicators of corporate social responsibility. The research results obtained using the proposed methodology show that oil and gas companies differ significantly in terms of corporate sustainability. The developed methodology for assessing corporate sustainability is of practical importance and can be used by companies in the analysis and planning of operating and investment activities that ensure the achievement of goals of corporate social responsibility.
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Doroshenko, Volodymyr, and Oleksandr Titlov. "Analysis of the directions for improving the development systems for oil fields at the later stage." Technology audit and production reserves 1, no. 1(57) (February 26, 2021): 34–38. http://dx.doi.org/10.15587/2706-5448.2021.225466.
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The object of research is oil fields at a late stage of their development. The most problematic issues in the development of oil fields are the formation and withdrawal of residual oil reserves. This problem is especially acute at the late or final stage, when the oil productivity of the wells decreases and the water cut of the production catastrophically increases. The most acceptable development system in such conditions is the use of methods for increasing oil recovery and, first of all, by injecting water into the reservoir. At the same time, the problematic issue is the lack of reliable information on the paths of water movement from injection to production wells and the imperfection of methods for aligning the injectivity profile in injection wells and the flow profile in production wells.
In the course of the study, statistically analytical methods were used to analyze the state of development of oil fields at a late stage and industrial approbation of methods for tracing water movement and substantiation of a reagent base to align the paths of water movement and oil inflow.
A set of reagents and technological methods for ensuring the regulation of the process of flooding of oil fields at a late stage of their development have been investigated and developed. It has been proven that a promising direction is the injection of a 0.1 % aqueous solution of the Polycar polymer together with water. This solution first of all penetrates into highly permeable, water-washed, formation intervals, contributing to the leveling of the injectivity profile, reducing the water cut of surrounding production wells and increasing their oil productivity.
Thanks to the research carried out, directions and means of improving the systems of field development at a later stage have been developed by organizing targeted (selective) waterflooding of oil deposits based on high-quality and comprehensive control of the movement of filtration flows in the reservoir. This will ultimately contribute to achieving and maintaining the design value of reservoir pressure, preventing a decrease in the rate of decline in oil production, obtaining the design value of the sweep efficiency by waterflooding, and withdrawing residual oil reserves.
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Kondrat, O. R., and O. A. Lukin. "HYDRODYNAMIC MODELING AS ONE OF THE DECISION METHODS FOR THE EFFICIENT DEVELOPMENT OF OIL FIELDS." Prospecting and Development of Oil and Gas Fields, no. 4(69) (November 8, 2018): 7–14. http://dx.doi.org/10.31471/1993-9973-2018-4(69)-7-14.
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Oil production is a complex process that requires modern technologies, work experience and responsible personnel to implement cost-effective projects. Oil field exploitation processes stimulation or modeling is a method for researching exploitation objects on their analogs (models) in order to determine characteristics of available projected objects and make them distinct.
The main objective of this research is to explore possibility and establishment of hydrodynamic stimulation results application effectiveness as a factor for decisions-making concerning oil or gas fields exploitation. The research, regarding optimization of oil field exploitation system, outlined the main directions and possibilities of oil extraction from depleted oil fields enhancement, and the hydrodynamic stimulation process as the main tool for solving such problems.
The study of efficiency of oil and gas field development presupposed developing geological and technological model of a hypothetical deposit with technological indicators of a real Ukraine deposit. The hydrodynamic model was adapted for all wells according to actual data. All geological and technological measures, carried out in the sight, were also modelled. Field exploitation history was adapted. Oil field exploitation system was optimized by improving the reservoir pressure enhancement system in the real field. Different variants of field exploitation were considered. They include the conversion of the producing well in the injection well, whereas the well in the vaulted part is injected.
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Devi, Kamalakshi, and Ranjan Kumar Bhagobaty. "Development of Biochemically Enhanced Oil Recovery Technology for Oil Fields – A Review." Nafta-Gaz 77, no. 2 (February 2021): 63–75. http://dx.doi.org/10.18668/ng.2021.02.01.
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Crude oil, a major source of energy, is being exploited as a driver of the economy throughout the world. Being a limited resource, the price of crude oil increases constantly and the exploitation of mature reservoirs becomes essential in order to meet the ever-increasing energy demands. As conventional recovery methods are not sufficient to fulfil the growing needs, there is an incessant demand for developing new technologies which can help in efficient tertiary recovery in old reservoirs. Petroleum biotechnology has been emerging as a branch that can provide solutions to major problems in the oil industry, including increasing oil production from marginal oil wells. The enhanced oil recovery (EOR) method comprises four methods – chemical, thermal, miscible, and immiscible gas flooding – as well as microbial interference to increase recovery of the remaining hydrocarbons trapped in reservoir rocks. Biochemically enhanced oil recovery comprises an array of blooming technologies for tertiary oil recovery methods which is eco-friendly, cost-effective, and efficient in extracting the residual oil trapped in reservoir rocks. Biochemical enhanced oil recovery (BcEOR) is based on the principle of using biochemical by-products produced by microbial species to enhance oil recovery, etc. All these technologies work on the principles of reducing viscosity, increasing permeability, modifying solid surfaces, emulsifying through adherence to hydrocarbons, and lowering interfacial tension. BcEOR technologies either employ the beneficial microorganism itself or the biochemical by-products produced by the microbial species to enhance tertiary oil recovery. This review paper discusses the chronological development of biologically enhanced oil recovery and its various mechanisms.
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Ramos, Geraldo Andre Raposo, and Kyari Yates. "Enhanced oil recovery: Projects planning strategy in Angolan oilfields." Angolan Mineral, Oil & Gas Journal 2, no. 2 (April 19, 2021): 1–11. http://dx.doi.org/10.47444/amogj.v2i2.12.
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Hydrocarbon exploration in Angola commenced in 1910 with its first oil recovered in 1955. The proven reserves in Angola are estimated to reach up to 13 billion barrels (2.1 billion m3). Most of the Angolan oil fields are mature or maturing and some are or may be abandoned due to unprofitable recovery limit beyond the conventional type of oil production. The oil recovery is mainly by primary and secondary recovery methods. Apart from the issue of maturity, there is increasing energy demand due to population growth and difficulties in discovering and developing new fields as alternatives to the current oil fields. For incremental and sustained production rate of these fields and in addition to instability of oil prices and concerns about future oil supply, Angola has started to work towards developing affordable and efficient technologies capable of recovering residual oil in reservoirs as well as extend the life of many current fields which can be achieved through the implementation of enhanced oil recovery (EOR). Therefore, this paper discusses the EOR planning strategy from project selection, project implementation and optimization, and field abandonment. It further highlights the mutual benefits that may be derived from a cross-collaboration between the government and other stakeholders in Angola.
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Ramos, Geraldo Andre Raposo, and Kyari Yates. "Enhanced Oil Recovery: Projects Planning Strategy in Angolan Oilfields." Angolan Mineral, Oil & Gas Journal 2, no. 2 (April 19, 2021): 1–11. http://dx.doi.org/10.47444/amogj.v2i2.1.
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Hydrocarbon exploration in Angola commenced in 1910 with its first oil recovered in 1955. The proven reserves in Angola are estimated to reach up to 13 billion barrels (2.1 billion m3). Most of the Angolan oil fields are mature or maturing and some are or may be abandoned due to unprofitable recovery limit beyond the conventional type of oil production. The oil recovery is mainly by primary and secondary recovery methods. Apart from the issue of maturity, there is increasing energy demand due to population growth and difficulties in discovering and developing new fields as alternatives to the current oil fields. For incremental and sustained production rate of these fields and in addition to instability of oil prices and concerns about future oil supply, Angola has started to work towards developing affordable and efficient technologies capable of recovering residual oil in reservoirs as well as extend the life of many current fields which can be achieved through the implementation of enhanced oil recovery (EOR). Therefore, this paper discusses the EOR planning strategy from project selection, project implementation and optimization, and field abandonment. It further highlights the mutual benefits that may be derived from a cross-collaboration between the government and other stakeholders in Angola.
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Alekseev, Evgeny. "Formation and treatment features of oil-fields waste water." E3S Web of Conferences 281 (2021): 09014. http://dx.doi.org/10.1051/e3sconf/202128109014.
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The oil-fields development and operation can be associated with high water consumption and waste water emission. Most of the pollutants come from drilling and formation waters. At the same time, a significant proportion of solid dispersed pollutants is accounted for drilling waste water. Formation waters are the main source of oil contaminants. The technological processes of oil-field waste water treatment are based on gravity separation. In the context of increasing the environmental requirements for production activities, especially in the regions with low average annual temperatures and, accordingly, slow processes of ecosystems’ self-cleaning, the problem of environment reliable protection arises. Gravity separation methods cannot provide the required quality of waste water treatment. Modern achievements in the field of baromembrane technologies and high salinity of waste water make it most effective and expedient to use membrane and electrochemical methods of waste water treatment.
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Zhang, Yan Xing, Xiang Fang Li, and Jia Li. "Asphaltene Deposition Forecasting Methods." Advanced Materials Research 616-618 (December 2012): 789–95. http://dx.doi.org/10.4028/www.scientific.net/amr.616-618.789.
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Asphaltene deposition problems occurred in many oil fields in worldwide, which maybe block up wellbore, damage the permeability of reservoir and decline oil productivity. There are many factors to result asphalthene deposition problems, which contain crude component, pressure, temperature and so on. However, it cannot prevent asphaltene deposition problems completely by keeping formation pressure higher than bubble pressure based on the research. Studying the deposition affecting factors, determining the deposition occurring conditions and depth are the basis to resolve the problems. This paper presents the key factor of affecting asphaltene deposition, and based on near infrared measurement, shows the asphaltene deposition envolope curve to forecast the pressure, temperature and depth in tube when the asphaltene deposition happened. The paper also provides methods to calculate the lowest production rate to carry the asphaltene solids to surface and forecast the deposition depth.
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TANZHARYKOV, P. A., U. ZH SARABEKOVA, and A. E. TULEGEN. "RISK ASSESSMENT IN OIL AND GAS PRODUCTION." Neft i gaz 1, no. 121 (April 15, 2020): 95–107. http://dx.doi.org/10.37878/2708-0080/2021-1.08.
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It is necessary to carry out work to analyze the harmful factors of accidents during the production, operation and transportation of raw materials in oil and gas fields and assess their compliance with the requirements of the standards of the Republic of Kazakhstan. The main goal of labor protection is to create safe working conditions for employees, as well as to prevent personnel from illnesses. In this regard, it is necessary to have a system of accounting, analysis and assessment of the state of labor protection, as well as management of labor protection. This article proposes ways to quickly assess the state of health and safety at work by calculating a number of occupational risk indicators based on information available in the modules for assessing occupational safety by industrial risk indicators. The efficiency of using the OSH management systems software proposed by the authors is based on a specific task from four main modules "Employees", "Events", "Equipment", "Ecology" and a number of submodules. In addition, this work uses matrix methods for assessing risks in the "Probability or Consequences of an Event" coordinate system, "Elmeri" system, "Fine Kinney" method, "Risks". Modern expert methods are compared and presented under the title "Five stages of assessment"
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Kalinin, Stanislav A., and Oleg A. Morozyuk. "Laboratory Studies of Carboniferous Reservoirs of High-Viscosity Oil Fields Using Carbondioxide." Вестник Пермского национального исследовательского политехнического университета. Геология. Нефтегазовое и горное дело 20, no. 4 (October 2020): 369–85. http://dx.doi.org/10.15593/2712-8008/2020.4.6.
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It is of current concern for the Permian-Carboniferous reservior of the Usinskoye field to develop low-permeable matrix blocks of carboniferous reservoirs, which contain major reserves of high-viscosity oil. To increase effectiveness of the currently used thermal oil recovery methods, the authors suggest using carbon dioxide as a reservoir stimulation agent. Due to a high mobility in its supercritical condition, СО2 is, theoretically, able to penetrate matrix blocks, dissolve in oil and, additionally, decrease its viscosity. Thus, СО2 applications together with a heat carrier could increase effectiveness of the high-viscosity oil recoveries and improve production parameters of the Permian-Carboniferous reservior of the Usinskoye field. During carbon dioxide injections, including combinations with various agents, some additional oil production is possible due to certain factors. Determination of the influencing factors and detection of the most critical ones is possible in laboratory tests. So, laboratory studies entail the key stage in justification of the technology effectiveness. The paper deals with describing the laboratory facilities and methodologies based on reviews of the best world practice and previous laboratory researches. These aim at evaluating effectiveness of thermal, gas and combined oil recovery enhancement methods. In particular, the authors explore experimental facilities and propose methodology to perform integrated researches of the combined heat carrier and carbon dioxide injection technology to justify the effective super-viscous oil recovery method.
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Kononenko, A. A., and K. A. Kononenko. "ASSESSMENT OF APPLICATION OF HORIZONTAL WELLS WITH MULTISTAGE FORMATION HYDRAULIC FRACTURING IN LOW PERMEABILITY RESERVOIRS IN THE FIELDS OPERATED BY GASPROMNEFT-NNG." Oil and Gas Studies, no. 4 (September 1, 2016): 59–62. http://dx.doi.org/10.31660/0445-0108-2016-4-59-62.
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The characteristic feature of the present-day development of oil industry of Russia is a transition of many developed fields to a stage of declining production of hydrocarbon raw materials. At a continuous growth of oil consumption the mineral resources are exhausted which determines a need in solving the major economic problem formulated in the document «Power strategy of Russia for the period till 2030», i.e. ensuring high volumes of oil and gas production and increase of the oil recovery factor by 35-37 %. Currently, search for and development of new technologies and implementation of advanced methods of enhanced oil recovery will lead to improvement of the efficiency of the Russian energy sector, in particular, the fields developed by JSC «Gazpromneft-NNG».
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Doroshenko, Volodymyr, and Oleksandr Titlov. "Consideration of the principles for stabilizing and increasing oil production at the later stage of field development (on the example of Ukraine fields)." Technology audit and production reserves 2, no. 1(58) (April 30, 2021): 44–47. http://dx.doi.org/10.15587/2706-5448.2021.229999.
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The object of research is the oil industry. One of the most problematic issues in the industry is the transition of deposits to a late or final stage of their development. A significant number of deposits in Ukraine, USA, Russia, Poland, Azerbaijan began to be developed in the middle of the 19th century. To date, all the «old» fields are mostly depleted both in terms of hydrocarbon reserves and energy potential (reservoir pressure), and some are still in development, but in the so-called «late stage». At the same time, a significant number of relatively «young» fields have also entered the late stage of development, which is characterized, first of all, by a significant production of oil reserves, a progressive increase in water cut in wells, and an increase in the share of hard-to-recover reserves. As well as the transition to mechanized methods of oil production and the gradual increase in the stock of marginal wells, physical and moral deterioration of fixed assets of oil production with the threat of their mass retirement, deterioration of the ecological balance of the environment, and the like. Therefore, this work is devoted to the consideration of the principles of stabilizing and increasing oil production at a late stage of field development (using the example of Ukrainian fields). In the process of research, the original methods of classical scientific research were used, the main of which are analysis and synthesis, induction and deduction. An example of this is the proposed distribution of the structure of oil reserves into active and hard-to-recover ones. The study is based on statistical processing of a significant array of real information about the state and problems of oil production, which is typical and characteristic not only of Ukrainian fields. A wide range of directions for investment activities in the field of oil production was obtained. These are, mainly, directions for increasing the resource base, enhancing the completeness of its production, organizing a controlled and controlled displacement of oil by water, including with the use of «reverse» technology, unification of equipment for oil production, and ensuring environmental protection. Owing to the comprehensive application of these investment directions for improving the systems of field development at a later stage, it is possible to stabilize and gradually increase production, the value of which is determined by the relevant design documents.
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Ovchinnikov, Vasiliy P., Pavel V. Ovchinnikov, Alexander V. Melekhov, and Oksana V. Rozhkova. "Challenges and their remedies while cementing production casing in high-temperature wells." Oil and Gas Studies, no. 1 (April 4, 2019): 39–46. http://dx.doi.org/10.31660/0445-0108-2019-1-39-46.
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The development of the global oil industry is closely related to the exploration of new oil and gas fields through the drilling new deep and ultra-deep wells, as well as the application of modern methods of hydrocarbon production. Usage of new methods of production, increasing the depth of the wells, bottomhole temperatures and pressures sets strict requirements and restrictions for the applied plugging materials. Oil well cements must have a long time of thickening to successfully complete the cementing process, grouting stone must have high strength characteristics, heat-resistant properties at high temperatures and provide reliable isolation of the annulus, also have corrosion resistance, ensure durability of the well lining.
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MOLDABAYEVA, Gulnaz, Raikhan SULEIMENOVA, Akmaral KARIMOVA, Nurken AKHMETOV, and Lyailya MARDANOVA. "EXPERIMENTAL SUPPORT OF FIELD TRIAL ON THE POLYMER FLOODING TECHNOLOGY SUBSTANTIATION IN THE OIL FIELD OF WESTERN KAZAKHSTAN." Periódico Tchê Química 17, no. 35 (July 20, 2020): 663–77. http://dx.doi.org/10.52571/ptq.v17.n35.2020.57_moldabayeva_pgs_663_677.pdf.
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One of the chemical methods of stimulating the reservoir to increase the efficiency of the oil field development process is polymer flooding. This article conducted a feasibility study of the effectiveness of the application of polymer flooding technology in one field in Western Kazakhstan. This field is characterized by high viscosity of reservoir oil, water cut, and dynamic heterogeneity of the reservoir. World experience in the application of polymer flooding in analogous fields shows high technological efficiency. Presented results of the analysis of the experience of applying technology in analogous fields, physicochemical studies of polymers, filtration studies on bulk models, hydrodynamic modeling of polymer flooding and the expected cost-effectiveness of introducing the technology, as applied to the conditions of the Karazhanbas oil field with high viscosity of reservoir oil. The analysis based on the experience of applying polymer flooding in high-viscosity oil fields, laboratory studies and estimated calculations of the expected production in the sector geological and hydrodynamic model shows a decrease in water cut, an increase in oil production, and an increase in current and final oil recovery.
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Crnogorac, Miroslav, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, and Branko Leković. "Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic." Energies 13, no. 7 (April 6, 2020): 1758. http://dx.doi.org/10.3390/en13071758.
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Artificial lift methods have applications in oil wells where oil production is no longer possible due to natural reservoir energy, so this necessary energy is added by introducing lift methods. In order to achieve optimum production, the selection of an artificial lift method is very important. This paper uses fuzzy logic as a mathematical and conceptual model for selection of the optimal artificial lift method. The outcome or IF-THEN rules, as the central part of the model, is based on empirical data from the selected oil fields. Results are presented in two ways: according to the surfaces of irregular geometric bodies, and their gravity with the scattering of results, i.e., on smaller and greater possibilities of interpreting results when there are small differences in outputs. Finally, a sensitivity analysis of the model is presented.
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Khudaiberdiev, Aziz, and Petr Kosianov. "Integrated physical enhanced recovery method for high-viscosity oil reservoirs." E3S Web of Conferences 244 (2021): 09012. http://dx.doi.org/10.1051/e3sconf/202124409012.
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The physical methods of enhanced oil recovery using electromagnetic fields are studied in this paper. Purpose of the work is to study the dependence of the main quantities that determine the volume of filtered oil, including the viscosity of oil, on the parameters (temperature, intensity and frequency) of thermal and electromagnetic fields, and optimize these parameters for maximum oil recovery factor using electric fields and steam treatment of the formation.It is proposed to combine the most effective and environmentally friendly methods to increase oil production. In the developed technique, methods of converting steam energy are used to create a torque of the drilling device with simultaneous steam treatment of the bottomhole zone of the reservoir. As well as the impact of an alternating electromagnetic field on the reservoir matrix and interstratal liquid fluids to create currents, increase the mobility of molecules of liquid fluids, and, as a consequence, increase the temperature and lower the viscosity of oil, which will increase oil recovery. As a result of numerous experimental experiments carried out using the original setup in the laboratory of the branch of the Tyumen Industrial University in Nizhnevartovsk, it was shown that a decrease in viscosity is observed only when exposed to simultaneous thermal and electromagnetic fields.
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Belyaeva, Albina S., Anna A. Nikitina, Raiykhana V. Kunakova, and Eldar M. Movsum-zade. "CHRONOLOGY OF DEVELOPMENT AND APPLICATION OF ENHANCED OIL RECOVERY METHODS ON EXAMPLE OF DEPOSITS OF REPUBLIC OF BASHKORTOSTAN." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 59, no. 4 (July 12, 2018): 88. http://dx.doi.org/10.6060/tcct.20165904.5350.
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In this paper the evolution of the methods of oil production intensification and enhanced oil recovery (EOR) in the USSR and the Russian Federation is considered. By authors were identified and described the historical stages of development of the secondary and tertiary EOR fields on the example of the Republic of Bashkortostan with the indication of major events that have had a significant impact on the technology development of deposits in the country.
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Liu, Yi Fei, and Xiao Dan Fang. "Improvement of Evaluation Methods for Deep Fluid Diverting Agents." Advanced Materials Research 402 (November 2011): 666–70. http://dx.doi.org/10.4028/www.scientific.net/amr.402.666.
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The main oil fields in China have gone gradually into the high or extra-high water cut production period, and conventional profile control technologies already cannot meet oilfields’ production requirements. The research and application of new fluid diverting technologies has got many new progresses, but their validity term is relatively short in the aspect of improving the high water cut oil reservoir. Based on the capillary bundle model, a comprehensive performance evaluation method of fluid diverting agents has been proposed, through systematical analysis of the fluid diverting agents evaluation methods at home and abroad and their existing problems, and all-sided understanding of the present reservoir situation. The experimental results showed that this method could effectively and comprehensively evaluate the fluid diverting agents’ diverting effect, shear resistance performance, temperature resistance performance and salt resistance performance, and could optimize injection process parameters. It has the important and practical significance to improve the duty validity of the fluid diverting agents.
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Sarancha, A. V., E. D. Lizunova, and E. V. Baranova. "Application of Methods of Increasing Oil Extraction Coefficients and Intensification of Oil Production at the Fields of Yamalo-Nenets Autonomous Area." IOP Conference Series: Earth and Environmental Science 720, no. 1 (April 1, 2021): 012062. http://dx.doi.org/10.1088/1755-1315/720/1/012062.
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Mammadova, R. S., and F. R. Mehdiyev. "Economic efficiency of innovative activity in oil-gas complex." Azerbaijan Oil Industry, no. 4 (April 15, 2020): 48–54. http://dx.doi.org/10.37474/0365-8554/2020-4-48-54.
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The paper reveals the concepts and presents the specifications such as the introduction and innovations. The issues of strategy and management of innovative activity are reviewed. The major tasks for providing the steady development of innovative activity in near future are marked. The key points on the reinforcement of the relationships between the science, education, production and the development of management mechanisms for innovative activity are highlighted as well. A special attention is paid to the application of innovative methods in oil production. The paper provides the calculation of economic efficiency in the oil producing enterprises due to the introduction of innovative methods in oil-gas fields’ development. The role of the development, research and embedding of nanotechnologies in oil-gas industry of Azerbaijan and some other countries is shown. The key tasks for the oil production increase and cost decrease are defined.
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Tennant, Kit. "Caspian Region Challenges1." International Oil Spill Conference Proceedings 1999, no. 1 (March 1, 1999): 87–89. http://dx.doi.org/10.7901/2169-3358-1999-1-87.
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ABSTRACT The Caspian Region is to all intents and purposes the birth place of the oil industry. Following the break up of the USSR and the ensuing conflicts much of the production facilities and infrastructure were not afforded a comprehensive maintenance and monitoring programme. With the independence of the oil producing states, the impetus of oil exploration and production has again gathered pace with many alliances being established between oil companies and between the oil industry and governments. The increase in production due to new fields and the improved production of existing fields has dictated that the methods of bulk crude oil transportation have had to be improved or put in place. Much of the focus on the oil transportation infrastructure has been on the renewal and repair of existing pipeline systems and proposals for new pipeline routes. Writing or updating existing contingency plans for pipeline routes as well as the coastline surrounding the Caspian Sea is also an area of great importance when considering the pristine nature of the aquatic environment. Further development in the Caspian Region is bringing together more oil industry players and governments. The contingency planning for such developments is in the fore of everyone's mind.
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Shatalova, N. V. "INNOVATIONS AND RENOVATIONS OF ENHANCED OIL RECOVERY BY ACOUSTIC FIELDS." Oil and Gas Studies, no. 2 (May 1, 2018): 65–70. http://dx.doi.org/10.31660/0445-0108-2018-2-65-70.
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The article present a survey of the current status of the oil industry raw materials base, trends and results of research of an acoustic technology, using of the borehole technical noise. The aim of the research is a theoretical justification and innovative solutions development of acoustic waves transforming and applying them for improving of standards of hydrocarbon production perfor-mance without using of additional energy sources. As an example, the approved acoustic technologies, developed by applying of new methods to the deep investigated acoustic phenomenon - standing acoustic waves, are used. The result is a substantiation of a new acoustic technology, which is developed by means of innovative and renovative technical solutions.
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Gorlenko, Nadezhda, Mikhail Murzin, and Roman Belyaevsky. "Assessment of Environmental Risks at Oil and Gas Production Companies Using an Integrated Method." E3S Web of Conferences 174 (2020): 02033. http://dx.doi.org/10.1051/e3sconf/202017402033.
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The assessment of environmental risks at oil and gas production facilities is one of the most important and relevant areas. Essentially, the results of the current assessment procedure are in most cases divorced from the real situation that is taking shape in the territory of mining operations. The main issue is the lack of a methodology that would combine an assessment of each component of the environment. The aim of this work is to justify and develop an integrated methodology for assessing environmental risks. For this, we considered the main types of environmental impacts of oil and gas production companies, and from existing methods for assessing environmental risks we selected those able to take into account the largest range of impacts. Using the resulting set of methods for assessing environmental risks, we conducted a study of the environmental condition at the oil and gas fields in the Lena-Tunguska oil and gas province, namely, the Yarakta, Iktekh, and Markovo fields. As a result, the environmental risk identified at these facilities corresponded to the “medium” level. As result, at these facilities during the risk management procedure it is necessary to implement additional measures aimed at minimizing the negative impact on the environment.
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Medina, Oscar E., Juan P. Castaño-Correa, Cristina Caro-Vélez, Richard D. Zabala, Jorge I. Bahamón, Farid B. Cortés, and Camilo A. Franco. "Disaggregation and discretization methods for formation damage estimation in oil and gas fields: an overview." DYNA 87, no. 213 (April 1, 2020): 105–15. http://dx.doi.org/10.15446/dyna.v87n213.84377.
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Formation damage could potentially impede production and injection operations. Hence, characterization and discretization processes of formation damage should be connected to quantification and disaggregation techniques, relying on characterization fundamentals that consider chemical and physical changes in the fluid and rock system through the field productive life. This document presents a review of different disaggregation, quantification and discretization methods for the formation damage estimation in oil and gas fields. This review is mainly divided into three main sections, namely: i) Formation damage diagnosis, ii) Formation damage quantification, and iii) Formationdamage disaggregation. This document will aid in the alignment of the academic and industrial sectors to incentivize the prevention and inhibition of formation damage, as well as the optimal design of remediation mechanisms.
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Moldabayeva, G. Zh, A. Kh Agzamov, R. T. Suleimenova, D. K. Elefteriadi, S. Zh Abileva, and B. A. Baluanov. "Hydrodynamic modeling of field development using enhanced oil recovery methods." Kompleksnoe Ispolʹzovanie Mineralʹnogo syrʹâ/Complex Use of Mineral Resources/Mineraldik Shikisattardy Keshendi Paidalanu 317, no. 2 (June 15, 2021): 14–22. http://dx.doi.org/10.31643/2021/6445.13.
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This article discusses a digital geological model, the transfer of borehole data to the geological grid, and the modeling of the technology of alternating steam and water injection. Alternating injection involves the cyclic injection of steam and water into an injection well in high-viscosity oil fields. The essence of this technology is that during the steam injection for 2-4 months, the formation warms up, leading to a decrease in viscosity and an increase in oil mobility. Then comes the period of water injection, during which the production of already warmed oil continues and the formation pressure is maintained. For digital geological modeling, the following data were collected, processed and prepared: a list of wells that open the object of modeling, coordinates of wellheads, well altitudinal data, inclinometry of well trajectories, GМS data on wells, analysis of wells drilled with core sampling, and digitized seismic data (structural surfaces on the roof of stratigraphic horizons, parameter maps, contact surfaces, faults, structural maps on the roof of target horizons with faults, isochron maps, velocity maps).
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Lu, Qiang, Zhi Bo Zhang, Cai Juan Zhang, Shu Hua Su, Wen Yan Li, and Chang Qing Dong. "Overview of Chemical Characterization of Biomass Fast Pyrolysis Oils." Applied Mechanics and Materials 130-134 (October 2011): 422–25. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.422.
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Fast pyrolysis of biomass to produce bio-oil is one of the most promising technologies to utilize lignocellulosic biomass. Liquid bio-oil covers many potential application fields, to be used a fuel or a source for chemical extraction and production. Hence, it is necessary to understand the chemical properties of bio-oil. This review concentrates on the elemental and chemical properties of bio-oil, and also discusses the analysis and separation methods.
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Gieg, Lisa M., Kathleen E. Duncan, and Joseph M. Suflita. "Bioenergy Production via Microbial Conversion of Residual Oil to Natural Gas." Applied and Environmental Microbiology 74, no. 10 (March 31, 2008): 3022–29. http://dx.doi.org/10.1128/aem.00119-08.
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ABSTRACT World requirements for fossil energy are expected to grow by more than 50% within the next 25 years, despite advances in alternative technologies. Since conventional production methods retrieve only about one-third of the oil in place, either large new fields or innovative strategies for recovering energy resources from existing fields are needed to meet the burgeoning demand. The anaerobic biodegradation of n-alkanes to methane gas has now been documented in a few studies, and it was speculated that this process might be useful for recovering energy from existing petroleum reservoirs. We found that residual oil entrained in a marginal sandstone reservoir core could be converted to methane, a key component of natural gas, by an oil-degrading methanogenic consortium. Methane production required inoculation, and rates ranged from 0.15 to 0.40 μmol/day/g core (or 11 to 31 μmol/day/g oil), with yields of up to 3 mmol CH4/g residual oil. Concomitant alterations in the hydrocarbon profile of the oil-bearing core revealed that alkanes were preferentially metabolized. The consortium was found to produce comparable amounts of methane in the absence or presence of sulfate as an alternate electron acceptor. Cloning and sequencing exercises revealed that the inoculum comprised sulfate-reducing, syntrophic, and fermentative bacteria acting in concert with aceticlastic and hydrogenotrophic methanogens. Collectively, the cells generated methane from a variety of petroliferous rocks. Such microbe-based methane production holds promise for producing a clean-burning and efficient form of energy from underutilized hydrocarbon-bearing resources.
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Qin, Wenting, Andrew K. Wojtanowicz, and Christopher D. White. "New Cold-Production Technique for Heavy Oil With Strong Bottomwaterdrive." SPE Journal 19, no. 02 (August 6, 2013): 270–79. http://dx.doi.org/10.2118/146928-pa.
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Summary Few heavy-oil reservoirs with strong bottomwaterdrive have been developed successfully, because severe water coning causes low ultimate recovery, low well productivity, and high water production. In these reservoirs, thermal and gravity-assisted methods that could improve recovery are perceived as economically unfavorable or technologically infeasible. In this paper, we propose a new cold-production technique, called the bilateral water sink (BWS), to meet those challenges. The BWS method suppresses water cresting by producing oil and water simultaneously from bilateral horizontal wells completed in the oil and water zones separately. Unlike conventional horizontal-well production, where water cresting causes water to bypass oil, making the waterdrive mechanism ineffective, the BWS prevents water cresting by altering the potential distribution in the near-well region. With cresting suppressed, water drives the oil from the edges of the well drainage area to the well, resulting in high ultimate recovery. By exploiting the natural reservoir energy of the bottomwaterdrive, the BWS becomes economically, technically, and environmentally appealing—especially for offshore fields where cold production is the only option and oil/water separation is a problem. In this paper, new analytical models are derived to design the water and oil rates for the BWS and to quantify the method's effect of avoiding water cresting and improving oil recovery. The analytical models are verified with numerical simulations. The BWS technique is also theoretically demonstrated by use of data from an actual oil field. The results show a considerable increase of oil recovery, from less than 15% for a conventional horizontal well to approximately 40% for a BWS well.
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Panikarovskii, E. V., V. V. Panikarovskii, M. M. Mansurova, and M. V. Listak. "Application of multi-stage hydraulic fracturing in the development of Achimov sediments at the Urengoy oil and gas condensate field." Oil and Gas Studies, no. 2 (June 2, 2020): 38–48. http://dx.doi.org/10.31660/0445-0108-2020-2-38-48.
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The development of deep-lying Achimov deposits makes it possible to extract additional volumes of gas and gas condensate in the fields with decreasing production, as well as implement strategies to introduce new methods to increase oil, gas and condensate production. The decrease in well productivity during the development of gas condensate fields requires the use of new methods of intensification of production. The main method for increasing the productivity of Achimov wells is hydraulic fracturing. The choice of hydraulic fracturing technology for low-permeability Achimov deposits is especially important for creating large hydraulic fractures and high permeability, as well as maintaining the filtration characteristics of reservoir rocks. Multi-stage hydraulic fracturing is the most effective method of intensifying gas and gas condensate production in the development of the Achimov deposits.
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Shekhovtsova, E. V., V. V. Romanko, and S. L. Kim. "Comprehensive application of the methods which increase oil production of the complicated fund of wells in Udmurtia fields." Construction of Oil and Gas Wells on Land and Sea, no. 4 (2021): 60–64. http://dx.doi.org/10.33285/0130-3872-2021-4(340)-60-64.
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Magaev, Nikolay A., Gagik M. Mkrtchyan, and Larisa V. Skopina. "Real Options Valuation of Deposits." World of Economics and Management 19, no. 2 (2019): 31–48. http://dx.doi.org/10.25205/2542-0429-2019-19-2-31-48.
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Income approach based on the method of discounted cash flows (DCF) seems to be the main instrument to evaluate economic efficiency of investment projects when developing oil and gas fields. However, at early stages of exploration and exploitation of hydrocarbon resources, uncertainty and risks of investors are very high, which limits the use of traditional methods. It is necessary to develop valuation tools accounting high uncertainty of input data on the exploitation of oil and natural gas resources, flexibility of their development by formation of rational production strategy with volatility of the operating parameters such as the world oil prices and the size and value of oil and gas reserves. In this article presents the real options approach which accounts the potential of flexible and adaptive project management providing advantages in assessing development projects as compared to the traditional income methods. Implementation of this method is exemplified by the case of oil and gas fields in the east of the Siberian platform.
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Weber, Sandra, Karola Schrag, Gerd Mildau, Thomas Kuballa, Stephan G. Walch, and Dirk W. Lachenmeier. "Analytical Methods for the Determination of Mineral Oil Saturated Hydrocarbons (MOSH) and Mineral Oil Aromatic Hydrocarbons (MOAH)—A Short Review." Analytical Chemistry Insights 13 (January 1, 2018): 117739011877775. http://dx.doi.org/10.1177/1177390118777757.
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Mineral oils (such as paraffinum liquidum or white oil), which consist of mineral oil saturated hydrocarbons (MOSH) and mineral oil aromatic hydrocarbons (MOAH), are widely applied in various consumer products such as medicines and cosmetics. Contamination of food with mineral oil may occur by migration of mineral oil containing products from packaging materials, or during the food production process, as well as by environmental contamination during agricultural production. Considerable analytical interest was initiated by the potential adverse health effects, especially carcinogenic effects of some aromatic hydrocarbons. This article reviews the history of mineral oil analysis, starting with gravimetric and photometric methods, followed by on-line-coupled liquid chromatography with gas chromatography and flame ionization detection (LC-GC-FID), which still is considered as gold standard for MOSH-MOAH analysis. Comprehensive tables of applications in the fields of cosmetics, foods, food contact materials, and living organisms are provided. Further methods including GCxGC-MS methods are reviewed, which may be suitable for confirmation of LC-GC-FID results and identification of compound classes. As alternative to chromatography, nuclear magnetic resonance (NMR) spectroscopy has recently been suggested for MOSH-MOAH analysis, especially with the possibility of detecting only the toxicologically relevant aromatic rings. Furthermore, NMR may offer potential as rapid screening especially with low-field instruments usable for raw material control.
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Urvantsev, R. V., and S. E. Cheban. "ASSESSMENT OF OIL WELL PRODUCTIVITY IN LOW-PERMEABILITY RESERVOIRS IN THE FIELDS OF EASTERN SIBERIA." Oil and Gas Studies, no. 3 (July 1, 2017): 30–36. http://dx.doi.org/10.31660/0445-0108-2017-3-30-36.
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The 21st century witnessed the development of the oil extraction industry in Russia due to the intensifica- tion of its production at the existing traditional fields of Western Siberia, the Volga region and other oil-extracting regions, and due discovering new oil and gas provinces. At that time the path to the development of fields in Eastern Siberia was already paved. The large-scale discoveries of a number of fields made here in the 70s-80s of the 20th century are only being developed now. The process of development itself is rather slow in view of a number of reasons. Create a problem of high cost value of oil extraction in the region. One of the major tasks is obtaining the maximum oil recovery factor while reducing the development costs. The carbonate layer lying within the Katangsky suite is low-permeability, and its inventories are categorised as hard to recover. Now, the object is at a stage of trial development,which foregrounds researches on selecting the effective methods of oil extraction.
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Mironychev, V. G., and G. Yu Kashin. "Application of technology of acoustic low frequency exploration for exploration and development of small oil fields in Udmurt Republic." Proceedings of higher educational establishments. Geology and Exploration, no. 5 (November 28, 2019): 76–81. http://dx.doi.org/10.32454/0016-7762-2019-5-76-81.
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Currently at the territory of the Udmurt Republic there is a depletion of previously discovered large oil fields. The increase in oil reserves is many times behind production. This problem can be solved by the introduction of oil fields with reserves of up to 300 thousand tons of oil. However the classical methods of prospecting, exploration and development makes identification and exploitation of these deposits economically not cost-effective. This problem can be solved by using the technology of acoustic low-frequency exploration at the search and evaluation and exploration stages of exploration. The forecasting scheme of hydrocarbon potencial of Debesskoe, Vostochno-Tylovaiskoe fields, as well as Staroaleiskaya and Marinskaya structures, studied by this method, has been shown. Advantages of application of technology of acoustic low-frequency investigation at carrying out the prospecting and exploration works on oil in the Udmurt Republic have been presented. The most promising geological structures to predict oil deposits by means of acoustic low frequency exploration in the territory of the Udmurt Republic have been suggested.
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González, Diana, Milan Stanko, and Arnaud Hoffmann. "Decision support method for early-phase design of offshore hydrocarbon fields using model-based optimization." Journal of Petroleum Exploration and Production Technology 10, no. 4 (December 4, 2019): 1473–95. http://dx.doi.org/10.1007/s13202-019-00817-z.
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AbstractThis paper presents the development of a method to provide decision support in the feasibility studies and concept planning phases of oil and gas field development. The objective in developing the methodology was to provide an easy-to-use facility to integrate the production-governing elements of oil and gas fields that capture the integrated production and economic performance of the system. This in a modular and scalable manner includes numerical optimization and uncertainty analyses needed to support engineering decisions. The method follows a series of steps that allow determining the optimal field production profile, drilling schedule, type of offshore structure, pressure support method and selection of artificial lift. The first step consists of creating efficient (low running time) proxy models of the production performance of the field and the costs figures associated with the project. The proxy model of the production performance is based on curves of maximum production rates versus cumulative production and contains all relevant field design features and computation of the most relevant performance indicators to consider in the evaluation. The proxy model to estimate the costs associated with the project is based on linear equations function of production rates and number of wells. The second step is to perform numerical optimization to find optimal production profile and drilling schedule that maximize the net present value of the specific development strategies considered. For the last step, an evaluation of the effect of uncertainties on the results of the numerical optimization using probabilistic methods is performed. The method was applied in a synthetic production system based on public data of Wisting field (currently under development). The field is a remote low-energy oil reservoir located in the Barents Sea. Nine strategies, obtained from the combination of three recovery support methods and three processing facilities, were compared using the net present value as decision factor. The best strategy consists of using a tension leg platform as processing facility and multiphase boosting plus water injection as recovery support method. This strategy generated the highest production and required the lowest costs, resulting in the highest profitability. It was demonstrated that the methodology successfully finds optimal field design features while quantifying the effect of uncertainties.
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ZHUMADILULI, Abdeli D., Irina V. PANFILOV, and Jamilyam A. ISMAILOVA. "Improvement of Uniform Oil Displacement Technology on the Example of Kazakhstani Fields." Journal of Environmental Management and Tourism 9, no. 3 (September 11, 2018): 542. http://dx.doi.org/10.14505//jemt.9.3(27).14.
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Most of oil companies today are focused on increasing the recovery factor from their oil fields. New drilling and well technologies as well as last advances in reservoir management, monitoring and Enhanced Oil Recovery (EOR) methods are thought to play a major role to meet the future demand of energy. Current decline in discovery of new oilfields intensified by a decline in oil prices make industrial companies to work on development of new efficient and economic techniques that will allow better production at lower cost. One such technology developed at Kazakh National Research University is presented in this paper. The latter propose the use of specific perforated holes on tubing liners in order to control the rate of water injection into variably permeable layers and to prevent non-uniform displacement of oil. The study was initially conducted on experimental facility that proved a positive correlation between the perforation density and water flow rates. Then the simulation test was performed using the data from several Kazakhstani oil fields. The results show an increase of sweep efficiency as well as a decrease in water-cut compared to traditional well case.
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Danilovic, Dusan, Vesna Karovic-Maricic, and Vojin Cokorilo. "Solving paraffin deposition problem in tubing by heating cable application." Thermal Science 14, no. 1 (2010): 247–53. http://dx.doi.org/10.2298/tsci1001247d.
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The production of paraffin-base crude is expensive and more complex then of other oil types. In northern Serbia, where majority of oil and gas fields are located, about 25% of oil production accounts for the high paraffin oil. During this oil type production, the paraffin deposition occurs in tubing's upper zone, ranging from 700 m depth upwards. In this article is presented original way of heating cable application, for solving paraffin deposition problem in tubing that can be easy and quickly installed in the well. Paraffin deposition problem is solved by heating, and at the same time the increased temperature causes the oil viscosity reduction resulting with improved oil flow rate. Application of this method and the results are exemplified by the flowing well B-3 where are used two different heating cables. This method, which is very successfully solves the problem of paraffin deposition in the tubing, can also be applied to wells producing by different artificial lift methods.
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Tsidaev, В. S., V. I. Golik, and A. V. Mayer. "A new direction of increasing the efficiency of oil production from bitumen." Oil and Gas Studies, no. 5 (November 17, 2019): 100–107. http://dx.doi.org/10.31660/0445-0108-2019-5-100-107.
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Oil production and use have become a priority element in ensuring the existence of human society and one of the main areas of research. Despite the abundance of publications on this topic, there is a gap in the development. Available publications don't contain information about the possibility of obtaining associated goods, which could reduce production costs. The aim of the study is to fill the gap by searching for technology that provides the opportunity to obtain associated marketable products in the form of metals. The research methodology used to achieve the goal combines the methods of systematizing and analyzing the available data on oil production technology and metal leaching technology with an integrated technology assessment at the expert assessment level. The results of the study include a proposal for the extraction of metals from oil-bearing rocks by leaching methods. The essence and mechanism of a fundamentally new technology for mining reserves of oil fields by leaching metals from ores during the integration of underground processes of oil pyrolysis and leaching of metals from oil-bearing rocks, combining the possibilities of mine-borehole development and physicochemical leaching processes, are described. The advantages of the new technology are formulated. The obtained results provide an answer to the objectives of the study and indicate the achievement of the goal.
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Pospelova, Т. A. "Modeling to support physicochemical enhancement techniques." Oil and Gas Studies, no. 3 (July 15, 2021): 79–90. http://dx.doi.org/10.31660/0445-0108-2021-3-79-90.
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The article discusses ways to increase the oil recovery factor in already developed fields, special attention is paid to the methods of enhanced oil recovery. The comparative structure of oil production in Russia in the medium term is given. The experience of oil and gas companies in the application of enhanced oil recovery in the fields is analyzed and the dynamics of the growth in the use of various enhanced oil recovery in Russia is estimated. With an increase in the number of operations in the fields, the requirements for the selection of candidates inevitably increase, therefore, the work focuses on hydrodynamic modeling of physical and chemical modeling, highlights the features and disadvantages of existing simulators. The main dependences for adequate modeling during polymer flooding are given. The calculation with different concentration of polymer solution is presented, which significantly affects the water cut and further reduction of operating costs for the preparation of the produced fluid. The possibility of creating a specialized hydrodynamic simulator for low-volume chemical enhanced oil recovery is considered, since mainly simulators are applicable for chemical waterflooding and the impact is on the formation as a whole.
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Sidorovskaya, E. A., D. S. Adakhovskij, N. Yu Tret'yakov, L. P. Panicheva, S. S. Volkova, and E. A. Turnaeva. "Integrated laboratory studies when optimizing surfactant-polymer formulations for oil deposits in Western Siberia." Oil and Gas Studies, no. 6 (January 15, 2021): 107–18. http://dx.doi.org/10.31660/0445-0108-2020-6-107-118.
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In conditions of declining production and significant watercut in most of producing oil fields in Western Siberia, secondary recovery methods such as waterflooding are ineffective. Promising methods for increasing oil recovery are chemical enhanced oil recovery methods such as surfactant-polymer (SP) flooding. Designing the chemical composition for SP flooding one should take into account the geological, physical and geochemical features of the oil field: reservoir temperature, composition and properties of reservoir fluids and rocks. The aim of the article is to create the optimum formulation of surfactant-polymer system for certain oil field in Western Siberia. The integrated laboratory studies are conducted to prove successful of SP formulation. The aqueous solubility, phase behavior experiment, low interfacial tension, admissible values of dynamic adsorption and oil produced (40 %) during coreflood experiments shows that SP formulation T01 meet the requirements for effective SP flooding.
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Wang, Li Chang, Zhi Zhang Wang, and Guo Tao. "Application of Data Mining on Reservoir." Advanced Materials Research 356-360 (October 2011): 2950–53. http://dx.doi.org/10.4028/www.scientific.net/amr.356-360.2950.
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Abstract. Domestic oil-gas fields are almost approaching production tail, and an increasing number of non-traditional oil-gas reservoirs are encountered during the process of exploratory development, which leads to a urgent requirement for an advanced method in that conventional methods, such as cross plot and multiple linear regression cannot precisely describe such complex oil-gas reservoirs. Thus, the main purpose of this paper is to come up with method of Decision Tree as final model for identification of reservoir fluid based on the comparison of advantage and disadvantage of fours methods, including Decision Tree, Support Vector Machines, Artificial Neural Network and Bayesian Network. In sum, data mining is a prospective applied method in oil reservoir geology.
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Azarkish, L., and T. Khalili Varnamkhasti. "Methods of financing of projects and oil and gas projects of common priority (A Case Study of Pars Oil & Gas Company) and comparison with Qatar and provide the optimal solution." JOURNAL OF SOCIAL SCIENCE RESEARCH 11, no. 2 (June 5, 2017): 2379–89. http://dx.doi.org/10.24297/jssr.v11i2.6156.
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In this research, we consider the financial procedure of projects plan in the field of oil & gas to make a Comparison between Qatar & Iran, regarding the amount of investment & gas and oil production in the south pars common field. Accordingly, we’re going to provide optimal solution to promote financing of projects & performance& plans in the area of oil & gas in the POGC. Through library studies, we gathered information regarding the amount of investment & removal in the common field in which two countries (Iran & Qatar) have down in the south pars. Also, by using of research literature which has been written of updated financing procedure, we have provided a questionnaire in which the validity of it has been examined by CRONBACH's alpha. Regarding subject of research, we select a statistic society from senior managers, intermediate managers, operations, head of department and senior experts and experts (knowledge contracts and financing of oil and gas projects) of national Iranian oil company (NIOC) & PARS oil & gas company (POGC) .the results acquired through library studies show that the amount of investment by Iran is 971197 USD billion & Qatar is 117191 USD billion; there for, the amount of removal gas by Iran is 759 million cubic meters & Qatar is 579 million cubic meters per day . Accordingly Qatar oil production is 7110111 Barrel per day but The Iranian oil layers still not reached the production stage. The analysis of the responses received, it is clearly show that PSA (production sharing agreement) is a suitable procedure to expedite increasing of removal / production in common fields.
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Eka Wahyuni, Cynthia. "Indonesia's Energy Diplomacy Strategy in Acquiring Oil Field in Algeria in 2013." Journal of International Studies on Energy Affairs 1, no. 1 (June 30, 2020): 1–27. http://dx.doi.org/10.51413/jisea.vol1.iss1.2020.1-27.
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Indonesia's energy diplomacy to Algeria was one of the efforts of the Indonesian government to maintain national energy security. Considering that the production produced from domestic sources has not been able to meet national energy needs, the Indonesian government tried to find exploration and production fields outside of Indonesia's territory. In effort to find fields that can be explored, the Indonesian government took a certain approach of diplomacy and negotiation with other governments. For that reason, this article aims to raise this topic is to find out what kind of strategy or approach was being carried out by the Indonesian government in conducting energy diplomacy in Algeria. To examine this topic, researcher used the concept of a grand strategy related to energy, energy diplomacy, and the concept of Indonesia's normative power. Researcher tried to prove that Indonesia's energy diplomacy strategy in acquiring oil fields in Algeria was done through strategy and decision making, which in the strategy there was a political approach and in the decision-making there was a business approach. The two approaches should synergize and complement each other, therefore consolidation between the two approaches was needed. Researchers using qualitative methods with analytical techniques using process tracing. One of the conclusions of this research is that the role of the Indonesian government was needed in supporting the acquisition of oil fields in Algeria.