Environment Protection in Oil and Gas Complex

In the article the issues of increasing the efficiency of development of oil fields are considered taking into account the complication of geological conditions, the deterioration of the structure of reserves and the increase in the intensity of development. To the container rock are the rocks that are capable of giving out the fluid at the design mode of operation of the wells it is obviously reduces the reserves of deposits, since oil-saturated rocks with reservoir properties below the conditioning values are not taken into account. The practice of field development shows that such rocks can give extra large volumes of oil. It is shown that when assessing the oil and gas potential of the deposits, it is necessary to take into account the entire oil and gas saturated rock volume. On the example of Western Siberia, the issues of geoecological safety in the development of oil fields with the maintenance of reservoir pressure due to injection of formation water are considered.

Keywords: collector; oil saturation; reservoir; oil; formation water; deposit; water withdrawal; monitoring; pressure.

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UDC 553.98 DOI: 10.30713/2411-7013-2018-2-7-12

UPDATE OF OILFIELD CHARACTERISTICS
OF COMPLEX JURASSIC STRUCTURE EASTERN SLOPE
OF SURGUT STRUCTURAL HIGH (p. 7)

Alexander Vyacheslavovich Lobusev, Dr. Sci. (geology-mineralogy), Professor,

Olga Valerevna Tyukavkina, Cand. Sci. (geology-mineralogy), Professor,

Nikolai Vasylevich Miletenko, Dr. Sci. (geology-mineralogy),

Sergey Borisovich Vagin, Dr. Sci. (geology-mineralogy), Professor,

Alexander Petrovich Pozdnyakov, Dr. Sci. (technical), Professor

Gubkin Russian State University of Oil and Gas (NRU)

65, Leninsky prosp., Moscow, 119991, Russian Federation,

e-mail: lobusev@gmail.com, tov.sing@mail.ru, miletenko@mnr.gov.ru, biblioteka@gubkin.ru,
app1937@gmail.com

In the work presented, based on a comprehensive approach and an integrated procedure for interpreting the results of indicator studies of different types of sections (type 1, 2, 3), on the example of deposits of the eastern slope of the Surgut arch, a well correlation of the complexly constructed object YuS₂ was carried out.

The use of several types of tracers at the same time made it possible to detail the data on the hydrodynamic connection between the injection and production wells, to determine the existence of interplastic flows, to establish the nature of the distribution of the filtration flows, and the rate of filtration of the labeled liquid. The presented studies increase the information content of field data, provide an opportunity to justify and make design decisions for the development of reserves within a complex structure collector.

Keywords: tracer studies; indicator; hydrodynamic communication; filtration properties; well; ammonium rhodanate; tri-sodium phosphate; concentration.

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UDC 553.98 DOI: 10.30713/2411-7013-2108-2-13-16

POTENTIAL OF APT-ALB-SEMAN AQUIFER SYSTEM
FOR SUPPORT OF PLAST PRESSURE IN OIL AND GAS HORIZONS
OF WESTERN SIBERIA (p. 13)

Mikhail Alexandrovich Lobusev, Cand. Sci. (technical)

Gubkin Russian State University of Oil and Gas (NRU)

65, Leninsky prosp., Moscow, 119991, Russian Federation,

e-mail: mlobusev@gmail.com

The article deals with the issues related to the study of the natural energy potential of the aquiferous Aptian-Albian-Cenomanian complex in connection with the production of formation water for pumping into oil reservoirs in order to maintain reservoir pressure in them. The considered area of Western Siberia – the Latitudinal Ob region, is the main oil and gas producing region of the country. The formation water reservoirs for PPD in oil reservoirs are correlated with multimillion-year annual oil production volumes. A methodology for estimating the probable changes in the volume of the Aptian-Albian-Cenomanian aquifer complex is proposed in connection with the drop in pressures and the undercompensation of seepage water sampling. The presence of a large number of clay interlayers can lead to subsidence of aquifers due to a decrease in their thickness. Methods for estimating changes in thickness are proposed.

Keywords: oil; gas; formation water; reservoir pressure; clay; sandstone; reservoir; reservoir energy.

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UDC 553.98 DOI: 10.30713/2411-7013-2018-2-17-19

SELECTION OF A PERSPECTIVE AREA TO STATE THE DRILLING
ON THE EXAMPLE OF THE CLINOFORM STRUCTURE OF THE DEPOSITS
OF THE DIFFICULTLY STORED RESERVES OF WESTERN SIBERIA (p. 17)

Mikhail Alexandrovich Lobusev, Cand. Sci. (technical),

Yulia Alexandrovna Antipova, Cand. Sci. (geology-mineralogy),

Alena Anatolevna Veresovich

Gubkin Russian State University of Oil and Gas (NRU)

65, Leninsky prosp., Moscow, 119991, Russian Federation,

e-mail: mlobusev@gmail.com, jav_85@mail.ru, veresovich.a@gubkin.ru

Currently, in most deposits with traditional hydrocarbon reserves, there is a gradual expected drop in production, which is due to the good knowledge of this type of reservoir. It is more than likely that future prospects will be associated with deposits with hard-to-recover reserves, which require a special approach both at the geological exploration stage of the study and at the development stage. The article considers the solution of a number of problems that are related to the complexity of predicting the filtration-capacitance properties, with the complex clinoform structure of the Achimovsky deposits.

Keywords: facies; clinoform structure; Achimov deposits; correlation; low filtration capacity properties.

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UDC 553.98 DOI: 10.30713/2411-7013-2018-2-20-23

FORECAST OF SPATIAL DISTRIBUTION
OF PERSPECTIVE OBJECTS AND SPECIFICATION OF THEIR STRUCTURE
OF OIL-AND-GAS JURASSIC DEPOSITS OF WESTERN SIBERIA (p. 20)

Mikhail Alexandrovich Lobusev, Cand. Sci. (technical),

Albina Zulfatovna Morozova,

Sergey Borisovich Vagin, Dr. Sci. (geology-mineralogy), Professor,

Alexander Petrovich Pozdnyakov, Dr. Sci. (technical), Professor

Gubkin Russian State University of Oil and Gas (NRU)

65, Leninsky рrosp., Moscow, 119991, Russian Federation,

e-mail: mlobusev@gmail.com, albina.zulfatovna@mail.ru, biblioteka@gubkin.ru, app1937@gmail.com

The main goals of our research are an integrated geological-geophysical analysis of the Jurassic deposits and seismofacial analysis for the purpose of new perspective objects on oil and gas discovery. All available wells were analyzed for identification of depositional condition in area of interest. Detailed well log correlation was done for Jurassic sediments based on the prior information and results of interpretation. Complex researches of facial conditions on GIS have been executed for the Jurassic layers. Seismic correlation, coherency and spectral decomposition maps was estimated. As a result of our research, new perspective prospects of YuV_2-1 formation was identified using seismic-facies analysis. It allows us to determinate condition of Jurassic sediment deposition in our area of interest.

Keywords: seismic; Western Siberia; Jurassic; coherence; spectral decomposition; sedimentation; electrofacies.

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UDC 553.984 DOI: 10.30713/2411-7013-2018-2-24-33

GEOLOGICAL AND GEOCHEMICAL PREREQUISITES
OF PETROLEUM POTENTIAL OF UPPER PALEOZOIC COMPLEX
OF THE EASTERN USTYURT (p. 24)

Vadim Vladimirovich Maslov, Cand. Sci. (geology-mineralogy)

Gubkin Russian State University of Oil and Gas (NRU)

65, Leninsky prosp., Moscow, 119991, Russian Federation,

e-mail: maslov.v@gubkin.ru

The article discusses the new geological and geochemical data on the petroleum potential of upper Paleozoic complex of the Eastern Ustyurt. A comprehensive study of the organic matter of the upper Paleozoic deposits within the Eastern Usty urt allowed to pay attention to the deposits presented in the stratigraphic range of the upper devonian – permo-trias. The authors identified and studied several consecutive stratigraphic complexes, which is given to geological and geochemical characteristics. Results of researches it is established that the complexes could be neftegazoprovodov in the geological past, as evidenced by high rates possible density of emigration.

Keywords: Upper Paleozoic sediments; Eastern Ustyurt; gas-liquid chromatography; hydrocarbon potential.

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UDC 553.98.2 DOI: 10.30713/2411-7013-2018-2-34-35

THE NATURE OF THE CHANGE IN THE SAND AND CLAY ROCKS
OF THE UVYAZOVSKIY UNDERGROUND GAS STORAGE UNDER THE INFLUENCE
OF VARIABLE PRESSURES ON THEM (p. 34)

Evgeny Grigorievich Zhuravlev, Dr. Sci. (geology-mineralogy), Professor

Gubkin Russian State University of Oil and Gas (NRU)

65, Leninsky prosp., Moscow, 119991, Russian Federation,

e-mail: evgjster@gmail.com

To assess the reliability of the Uvyazovsky UGS, studies were made of the effect of variable pressure on the strength properties of the reservoir clay cover and the sand reservoir. In all selected rock samples, porosity, permeability, density, and decompaction factors were determined as a function of effective stresses with uneven compression. The parameters considered were determined at atmospheric pressure and after twelve-fold cycles of pressure increase and reduction to atmospheric pressure. The tests were carried out at a uniform (all-round) pressure up to 8 MPa and at higher uneven (directed) pressures on the samples. Based on experimental studies, it has been established that the structure of sand reservoir and the plantar part of the reservoir clay cove under the influence of cyclic pressure changes are being destroyed.

Keywords: Ulyazovskoe UGS; reservoir clay cover; sand reservoir; pressure variables; destruction.

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UDC 553.98.2 DOI: 10.30713/2411-7013-2018-2-36-38

TECTONIC STRUCTURE AND OIL AND GAS PОTENTIAL
OF THE PRE-JURASSIC FORMATIONS OF YAMAL SOUTHERN (p. 36)

Evgeny Grigorievich Zhuravlev, Dr. Sci. (geology-mineralogy), Professor

Gubkin Russian State University of Oil and Gas (NRU)

65, Leninsky prosp., Moscow, 119991, Russian Federation,

e-mail: evgjster@gmail.com

The investigations of the tectonic structure and oil and gas potential of the pre-Jurassic complexes of rocks in the southern part of Yamal are presented. The pre-Jurassic formations have a complex heterogeneous structure. They include the epihercine block-folded basement and the protoplatform Permian-Triassic trap formation. A number of wells reached elevated blocks of the lower, crystalline basement in the area. The upper, predominantly shale-carbonate basement is represented by the Paleozoic rocks. It was met by many wells on Novoportovskaya field and separate wells in other areas.

On the erosion surface of the basement there is a complex of rocks of the sedimentary cover, at the base of which the basalt-dolerite trap formations are commonly present and, in some places, the terrigenous formation of the late Permian and Triassic can be found.

It is shown that the perspective objects for oil and gas are not Paleozoic reef structures, which lost primary reservoir properties, but secondary hypergenic reservoirs.

Keywords: southern Yamal; pre-Jurassic formations; tectonic structure; oil and gas potential; reef structures; hypergenic reservoirs.

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UDC 622.276+532.5 DOI: 10.30713/2411-7013-2018-2-39-42

INTELLECTUAL SYSTEM GEOLOGICAL GEOPHYSICAL CONTROL
OF EХPLOITATION OF SOMATIC UGS (p. 39)

Georgiy Nikolaevich Ruban, Cand. sci. (technical), Professor,

Viktor Georgievich Martynov, Dr. Sci. (economy), Cand. Sci. (geology-mineralogy), Professor

Gubkin Russian State University of Oil and Gas (NRU)

65, Leninsky prosp, Moscow, 119991, Russian Federation,

e-mail: geonr@mail.ru, martynov@gubkin.ru

At present, the intellectualization of various production and creative processes is a reality. Intelligence is the ability to solve problems that can not be solved by ordinary mathematical functions.The presence of intelligence in any system, whether it is engineering (well) or biological (human), implies the possibility of self-optimization of multiple internal parameters of the system in relation to a variety of changing environmental influences. At the same time, it is necessary to note the increased requirements for up-to-date information on the status of the monitoring object. Taking into account the high rate of change in the saturation character of the reservoir of the reservoir of underground gas storages, the alternating changes in temperature and pressure – the creation of an intelligent system of geological and geophysical monitoring is a key element in increasing the operational efficiency of UGS facilities at the present stage. The presence of effective feedback allows the system to "learn" and operate autonomously with high efficiency under the most economical conditions, set from outside or independently. Control and geophysical wells, which are the main peripheral bodies of information perception, and equipped with stationary geophysical complexes based on electrical and electromagnetic GIS methods are a fundamentally new link in the system of geological and geophysical control. Different levels of UGS intellectuality on the basis of constant and continuous geological and geophysical control allow improving this system to achieve the best results.

Keywords: intelligence; geological and geophysical control; underground gas storage (UGS); well; neural networks; stationary geophysical complexes; information; initial data.

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UDC 622.276+532.5 DOI: 10.30713/2411-7013-2018-2-43-48

INNOVATIVE MULTIWELL TESTING TECHNOLOGY
AS A PRIMARY TOOL TO PREVENT POLLUTION OF WATER FORMATIONS
WHILE OIL FIELDS DEVELOPMENT (p. 43)

Danila Nikolaevich Gulyaev, Cand. sci. (technical),

Galina Mihailovna Zoloeva, Dr. Sci. (geology-mineralogy),

Dmitry Mikhailovich Lazutkin,

Valentina Vladimirovna Kokurina, Cand. sci. (technical)

Gubkin Russian State University of Oil and Gas (NRU)

65, Leninsky prosp., Moscow, 119991, Russian Federation,

e-mail: letter_to_me@rambler.ru, galina.zoloeva@mail.ru, dimlaz@mail.ru, kokurinav@mail.ru

The article presents the informative value of the implementation of innovative technology for analyzing the historical performance of production and injection wells in combination with reservoir monitoring using permanent downhole gages on the telemetry of electric submersible pumps, which allows to determine the formation properties, the skin-factor (and fracture parameters, if present), to reconstruct the history of reservoir pressure, well productivity coefficient, to identify well interference, evaluate fault conductivity between the wells (if present), quantify formation properties between the wells and to detect well integrity problems. Based on the information received, it becomes possible to prepare recommendations for production logging and workovers. This avoids the emergence of potential environmental problems associated with the pollution of water formations.

Keywords: reservoir surveillance; reservoir pressure; well-testing; interference testing.

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UDC 550.83 DOI: 10.30713/2411-7013-2018-2-49-52

THE PROBLEM OF SELECTION OF RESERVOIRS
AND EVALUATION OF THEIR PROPERTIES IN CARBONATE SEDIMENTS
OF THE LOWER CAMBRIAN DEPOSITS OF THE NEPA-BOTUOBA ANTECLISE (p. 49)

Galina Mihailovna Zoloeva, Dr. Sci. (geology-mineralogy),

Maria Vyacheslavovna Kulapova, Cand. Sci. (geology-mineralogy),

Andrey Vasilievich Gorodnov, Cand. Sci. (geology-mineralogy),

Nikolay Shavkatovich Ravilov,

Yury Alexandrovich Dukhnenko

Gubkin Russian State University of Oil and Gas (NRU)

65, Leninsky prosp., Moscow, 119991, Russian Federation,

e-mail: galina.zoloeva@mail.ru, kulapova.m@gubkin.ru, gorodnov.a@gubkin.ru, ship_91@mail.ru, dukhnenko.yury@gmail.com

The work is devoted to the complex lithologic-petrophysical interpretation of logging data on the basis of comprehensive analysis of petrophysical data, taking into account lithological typification of the species. Justified petrophysical model rocks, given the complex mineralogical composition and structure of the void space. Analyzed the impact of secondary processes that can lead to improvement and deterioration of the filtration-capacitive properties of rocks. Shows examples of determining the complex multicomponent composition of the rocks and total porosity according to an extended range of GIS techniques.

Keywords: рetrophysical model; secondary porosity; permeability and reservoir properties.

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UDC 550.8 DOI: 10.30713/2411-7013-2018-2-53-58

MUD LOGGING SERVICES OF UNDERGROUND GAS STORAGE
WELLS – EXPERIENCE AND PROSPECTS (p. 53)

Valentin Vadimovich Strelchenko, Dr. Sci. (Technical), Professor,

Viktor Georgievich Martynov, Dr. Sci. (economy), Cand. Sci. (geology-mineralogy), Professor

Gubkin Russian State University of Oil and Gas (NRU)

65, Leninsky prosp., Moscow, 119991, Russian Federation,

e-mail: strelvv@gmail.com, com@gubkin.ru

Sergey Vladimirovich Kozhevnikov, Cand. Sci. (geology-mineralogy)

LLC "Gazprom Georesurs"

65, Novocheryomushkinskaya str., Moscow, 117418, Russian Federation,

e-mail: S.Kozhevnikov@gazpromgeofizika.ru

Ivan Vladimirovich Kuznetsov

NPO "SNGS"

10, bld. 1, Dmitrovsky proezd, Moscow, 127422, Russian Federation,

e-mail: kuznetsov@nposngs.ru

The article present the current state and development prospects of mud logging services as part of a complex of information support for the construction and major repairs of gas storage wells, in which they entered the past decade. It is noted that the equipment and methodological complex of mud logging has developed, basically, to the solution of geological and technological problems in gas, gas-condensate and oil fields, where it is used since the 80's. Considering, that the purposes of construction and operation of wells at UGS and in fields are significantly different, the actual problem is the adaptation of the mud logging complex taking into account both the general specifics of the gas storage process and the features of gas storage facilities of various types (in depleted gas fields, in water-saturated reservoirs, cavities in saliferous sediments). It is established that in the search for geological structures favorable for use as underground gas storage facilities, mud logging data, primarily gas logging, can provide new, previously unused information to justify the choice of structures as storage by the quality of the caprock. A generalization of the experience of conducting mud logging has shown the effectiveness of their application in the design, construction and operation of underground storage facilities to control the tightness of gas storage facilities and to identify unknown anthropogenic deposits, allowed to determine the main directions of their improvement in this area.

Keywords: natural gas; underground gas storage; mud logging; gas logging; hydrogen analyses during mud logging; impermeable bed.

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UDC 622.32+622.24 DOI: 10.30713/2411-7013-2018-2-59-63

PROSPECTS FOR THE LEACHING OF METALS IN OIL (p. 59)

Vitaliy Ivanovich Komashchenko, Dr. Sci. (technical), Professor,

Viktor Georgievich Martynov, Dr. Sci. (economy), Cand. Sci. (geology-mineralogy), Professor

Gubkin Russian State University of Oil and Gas (NRU)

65, Leninsky prosp., Moscow, 119991, Russian Federation,

e-mail: komashchenko@inbox.ru, v.martynov@gubkin.ru

Vladimir Ivanovich Golik, Dr. Sci. (technical), Professor

North Caucasian State Technologycal University

44, Kosmonavta str. of Nikolaev, Vladikavkaz, 362021, Russian Federation,

e-mail: v.i.golik@mail.ru

Geophysical Institute of Vladikavkaz NTs Russian Academy of Sciences

Nikolay Vasilievich Miletenko, Dr. Sci. (geology-mineralogy), Professor

Ministry of Natural Resources and Environmental Protection of the Russian Federation

4/6, Bolshaya Gruzinskaya str., Moscow 125993, Russian Federation,

e-mail: miletenko@mnr.gov.ru

The article is devoted to the development of solid hydrocarbon ores. The results of the analysis of practice of application of technologies to produce useful component without extracting ore from the bowels on the earth's surface. The substantiation of technical possibility and economic feasibility of applying in the applicable terms of technology with the leaching of metals without extracting the earth's surface. Given the expert assessment of the prospects of the combined technologies of mining of solid hydrocarbons with the receipt of oil and metals, which is based on aggregation processes of pyrolysis of hydrocarbons and metals leaching in the process of underground mining. The choice of technology for combined extraction of mineral resources is to ensure the environmentally correct state of ore-bearing array and to minimize the costs of production and processing, and the profit can be determined by the model of the balance of costs and savings while receiving energy and metal products. It is shown that the leaching of tailings to the thermal processing of hydrocarbons in the subsoil, in addition to profit from the expansion of the mineral base, prevents displacement and deformation of rock masses and the earth's surface and eliminates the aggressive accumulation of tailings on the surface with a negative impact on the environment.

Keywords: hydrocarbon ores; minerals; pyrolysis; leaching; metals; technology; profit; thermal processing; deformation of rocks; environment.

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