ISSN 1999-6934

Scientific-technical journal

EQUIPMENT AND TECHNOLOGIES

FOR OIL AND GAS COMPLEX

                                                                                                published since 2001

June 2021                                   3(123)                        6 issues per year

 

CONTENS

 

MACHINERY AND EQUIPMENT

 

Khodyrev A.I., Mulenko V.V. Analysis of injector designs for inhibitors injection into a pipeline (p. 5‑13)

 

Ibatullin I.D. Substantiation of accelerated tests parameters for assessment of materials frictional compatibility (p. 14‑17)

 

Utkin I.Yu., Ponomarenko D.V. Influence of various methods of heat treatment on the microstructure and mechanical properties of the simulated heat affected zone of welded joints of gas pipeline branches (p. 18‑21)

 

Yushin E.S. Analytical review of the existing and prospective methods of marking oil and gas pipe products to ensure their traceability throughout the life cycle (p. 22‑27)

 

STANDARDIZATION AND QUALITY MANAGEMENT

 

Ginzburg M.Ya., Ivanovskiy V.N. On the issue of updating the names and abbreviations of equipment and technologies used in mechanized oil production (On the implementation in the technical documentation for the equipment of the requirements of GOST R 56830-2015 Oil and gas industry. Downhole electric driven blade pumping units. General technical requirements) (p. 28‑32)

 

Bekmacheva V.O., Mikhailova E.G., Egorova O.B. The use of digital technologies in the quality management of work in the exploration of oil and gas deposits (p. 33‑36)

 

Yasashin V.A., Ageeva V.N., Merkulova A.A. Analysis of the quality characteristics of liquefied natural gas and storage tanks (p. 37‑42)

 

DEVELOPMENT OF OIL AND GAS FIELDS

 

Apasov T.K., Sagitdinov R.R., Levitina E.E., Zaboeva M.I., Apasov G.T. Small-sized exothermal heater to prevent and combat hydrate formation (p. 43‑46)

 

PIPELINE TRANSPORT

 

Matsiuk R.A., Volodchenkova O.Yu. Analysis and classification of the causes of defects in protective coatings of underground pipelines (p. 47‑51)

 

Gromyko A.N., Mironov A.A. Scientific and methodological grounds of the algorithm and the program for the design calculation of potentially new tubular plastic shock absorbers of promising supports of the main pipelines foundations of the oil and gas complex of the Russian Federation (p. 52‑59)

 

PROCEEDINGS OF THE IXTH THEMATIC SEMINAR "EXTRACTION OF METHANE FROM COAL DEPOSITS. PROBLEMS AND PROSPECTS"

 

Pozdeev E.E., Komissarov I.A. International experience of coal mine gas utilization and prospects for using coal mine methane in JSC "SUEK-Kuzbass" (p. 61‑65)

 

Ulyanova .V., Malinnikova O.N., Kharchenko A.V., Pashichev B.N. Microstructure of methane coal beds (p. 66‑70)

 

Trofimov V.A., Filippov Yu.A. Formation features of methane mass transfer in the interbedded rocks (p. 71‑78)

 

Fedorin V.A., Shakhmatov V.Ya., Klishin V.I. The proposals for selection of geological areas aimed for underground coal gasificacion and methane recovery in Kuznetsk coal basin (on the example of Leninsk coal field) (p. 79‑84)

 

Drizhd N.A., Khaidina M.P., Musin R.A., Aleksandrov A.Yu. Justification of a well placement, uncovering a coal seam (p. 85‑89)

 

Desyatkin A.S., Ageev P.G. Application of plasma pulse impact technology to increase the permeability of coking coals of increased hardness and low water saturation for the purpose of early degassing (p. 90‑94)

 

EXHIBITIONS SYMPOSIA CONFERENCES

 

Results of "Neftegaz-2021" International Exhibition (p. 95‑100)

 

 

Information on the articles

 

UDC 66.069.83          DOI: 10.33285/1999-6934-2021-3(123)-5-13

 

ANALYSIS OF INJECTOR DESIGNS
FOR INHIBITORS INJECTION INTO A PIPELINE (p. 5)

 

Alexander Ivanovich Khodyrev, Dr. of tech. sci., Professor,

Vladimir Valentinovich Mulenko, Cand. of tech. sci., associate professor

 

National University of Oil and Gas "Gubkin University"

65, bld. 1, Leninsky prosp., Moscow, 119991, Russian Federation,

e-mail: aihod@mail.ru, vmulenko@mail.ru

 

To implement the inhibitor protection of equipment and pipelines from corrosion and hydration, centrifugal injectors are often used, which are part of a larger product, which also functions to insert and remove the injector from the pressurized pipeline. The paper considers the different designs of the released or proposed variants of injectors, the features of their application. It is shown, that for cases where it is required to have many injection points into the low-pressure gas pipeline and the possible use of a threaded DN 25 airlock crane, simple manual devices equipped with a single extractor per a product group are preferable. It is shown that for gas pipelines with working pressure of up to 4 MPa, equipped with a drain with a DN 50 airlock crane, it is preferable to use an injector with a removable winch a drive, which is characterized by minimal metal intensity. It is noted that the use of more complex injectors with automatic hydraulic input into a pipeline can be justified for gas pipelines containing hydrogen sulfide gas with working pressure of above 34 MPa, especially in case of periodic injection of corrosion inhibitor.

 

Keywords: inhibitor; inhibiting; corrosion; pipeline; gas pipeline; nozzle inserting; injector; injection.

 

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UDC 621.891+622.24.05.001.4          DOI: 10.33285/1999-6934-2021-3(123)-14-17

 

SUBSTANTIATION OF ACCELERATED TESTS PARAMETERS
FOR ASSESSMENT OF MATERIALS FRICTIONAL COMPATIBILITY (p. 14)

 

Ildar Duglasovich Ibatullin, Dr. of tech. sci., Professor

 

Samara State Technical University

244, Molodogvardeiskaya str., Samara, 443100, Russian Federation

 

The substantiation of the accelerated tests parameters for the frictional compatibility assessment is presented. The necessity of carrying out accelerated tests to assess the frictional compatibility has been substantiated. Depending on the method of the test time reducing, accelerated tests under normal and forced modes (accelerated normal and accelerated forced) are considered. It has been established that despite the increasingly widespread concept of creating materials and technologies for a specific product in the world, it cannot fully replace research for compatibility, since the art of creating friction units is not so much in using promising technologies and components with "good" properties, but in the ability of choosing the right combinations of all elements of the tribosystem, taking into account the specific conditions of use.

 

Keywords: roller cone bit; bearing unit; sliding bearing; friction pairs; tribosystem; frictional compatibility.

 

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UDC 621.791.011:539.3          DOI: 10.33285/1999-6934-2021-3(123)-18-21

 

INFLUENCE OF VARIOUS METHODS OF HEAT TREATMENT
ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES
OF THE SIMULATED HEAT AFFECTED ZONE OF WELDED JOINTS
OF GAS PIPELINE BRANCHES (p. 18)

 

Ivan Yurievich Utkin, Cand. of tech. sci., associate professor,

Darya Viktorovna Ponomarenko, engineer

 

National University of Oil and Gas "Gubkin University"

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

e-mail: svarka@gubkin.ru

 

The influence of the methods of heat treatment of the simulated superheat zone at the cooling rate characteristic of the branch welding technology on its microstructure and mechanical properties is investigated. A method is defined in which the values of impact strength and hardness meet the regulatory requirements.

 

Keywords: bends; superheat zone; heat treatment methods; impact strength; hardness.

 

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UDC 621.795:621.643          DOI: 10.33285/1999-6934-2021-3(123)-22-27

 

ANALYTICAL REVIEW OF THE EXISTING AND PROSPECTIVE METHODS
OF MARKING OIL AND GAS PIPE PRODUCTS TO ENSURE THEIR TRACEABILITY
THROUGHOUT THE LIFE CYCLE (p. 22)

 

Evgeniy Sergeevich Yushin, Cand. of engineering sci., associate professor of the Department of subsoil assets use and oil and gas business

 

RUDN University (Peoples Friendship University of Russia)

6, Miklukho-Maklay str., Moscow, 117198, Russian Federation,

e-mail: yushin-es@rudn.ru

 

The paper analyzes the existing and promising methods of marking oil and gas pipe products in order to improve the quality of product identification, as well as their tracking from manufacture to installation, operation and repair work. The main advantages and disadvantages of markings are shown, the key functional requirements for them are given and an attempt is made to mark them. It is noted that the most promising are the electronic labeling methods that require improvement, comprehensive research and pilot testing.

 

Keywords: marking; oil and gas field pipes; pipe products; accounting; tracking; marking; paint marking; laser marking; isotope marking; nuclear marking; fluorescent marking; radio frequency marking; digital code.

 

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UDC 622.276.5.05          DOI: 10.33285/1999-6934-2021-3(123)-28-32

 

ON THE ISSUE OF UPDATING THE NAMES AND ABBREVIATIONS
OF EQUIPMENT AND TECHNOLOGIES USED IN MECHANIZED OIL PRODUCTION
(ON THE IMPLEMENTATION IN THE TECHNICAL DOCUMENTATION FOR THE EQUIPMENT
OF THE REQUIREMENTS OF GOST P 56830-2015 OIL AND GAS INDUSTRY.
DOWNHOLE ELECTRIC DRIVEN BLADE PUMPING UNITS.
GENERAL TECHNICAL REQUIREMENTS) (p. 28)

 

Matvey Yakovlevich Ginzburg

 

LLC "LUKOIL EPU Service"

10, Oktyabrskaya str., Kogalym, 626483, Khanty-Mansi Autonomous okrug-Yugra, Tyumen region, Russian Federation

 

Vladimir Nikolaevich Ivanovskiy, Dr. of tech. sci.

 

National University of Oil and Gas "Gubkin University"

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

 

The expansion of the nomenclature, design features and operational principles of downhole pumping units required the creation and implementation of the Russian national standard GOST P 56830-2015 Oil and gas industry. Installations of downhole electric driven blades pumps. General technical requirements). However, many documents, technical specifications and training manuals still use outdated terms and abbreviations that do not reflect the current level of oil-producing equipment development. This creates confusion when teaching students, when ordering equipment, when analyzing the efficiency of oil production. Compliance with the requirements of national and interstate standards in the technical documentation for oil-producing equipment should ensure the improvement of its quality and competitiveness in the Russian and foreign markets.

 

Keywords: name of oil-producing equipment; designation; abbreviation; electric driven blade pump installation; downhole equipment for oil production.

 

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UDC 004.9:658.562          DOI: 10.33285/1999-6934-2021-3(123)-33-36

 

THE USE OF DIGITAL TECHNOLOGIES IN THE QUALITY MANAGEMENT
OF WORK IN THE EXPLORATION OF OIL AND GAS DEPOSITS (p. 33)

 

Victoriya Olegovna Bekmacheva, master's degree, Faculty of Technological Management and Innovations,

Elena Georgievna Mikhailova, Cand. of phys.-math. sci., associate professor, Director of the Higher Scool of Digital Culture,

Olga Borisovna Egorova, Cand. of philological sci., Higher School of Digital Culture

 

ITMO University

49, Kronverksky prosp., St. Petersburg, 197101, Russian Federation,

e-mail: bekmachevavo@gmail.com, e.mikhailova@itmo.ru, olva.egorova@gmail.com

 

Digitalization involves not only processing of the data obtained during geological exploration by means of computers, but also helps choosing a technical and economic model for the development of the studied region. The use of digital technologies can improve the tasks quality management and the very efficiency of exploration. The paper examines and analyzes the existing digital technologies and their influence on the task management quality in this field of activity and their implementation for improving the work quality management when prospecting for oil and gas field. Information processing methods are widely used in the field of seismic exploration and in forecasting models construction, in particular, when planning the development of new fields. For example, seismic modeling methods for predicting the fracturing distribution in reservoirs with low permeability can increase the oil flow and optimize the wells placement. Mathematical models building technologies of the objects under study, applied nowadays, with the possibility of carrying out virtual tests, are of great importance for improvement of the quality management processes of geological exploration. Various projects aimed at integrating of data obtained at all stages of exploration work help to analyze similar deposits, to automatize the data interpretation process and to reduce the time of field surveys.

 

Keywords: geological prospecting activity; quality; machine training; oil and gas industry; quality management; digitalization; digital twin; digital technologies.

 

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UDC 622.691.2-404:622.691.234-404          DOI: 10.33285/1999-6934-2021-3(123)-37-42

 

ANALYSIS OF THE QUALITY CHARACTERISTICS
OF LIQUEFIED NATURAL GAS AND STORAGE TANKS (p. 37)

 

Vitaly Anatolievich Yasashin, Dr. of tech. sci, Professor,

Vera Nikolaevna Ageeva, Cand. of tech. sci., associate professor,

Anna Aleksandrovna Merkulova, undergraduate

 

National University of Oil and Gas "Gubkin university"

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

e-mail: yasashin@rambler.ru

 

Liquefied natural gas (LNG) is currently the most actively developing environmentally friendly energy carrier, occupying a leading place in the fuel and energy complex of the world's leading economies. The quality characteristics of liquefied natural gas are ensured both by the quality of the development of the technological base for production and storage, and by the creation of the required regulatory and technical documentation, regulating all the aspects affecting the LNG sector. The paper analyzes the production method that provides the required quality of LNG, as well as the quality indicators and characteristics of isothermal storage tanks and identifies the causes of depressurization of isothermal tanks. The analysis of regulatory and technical documentation in the field of domestic and foreign standardization in the field of LNG storage is carried out. This made it possible to evaluate the quality during the proposed certification tests, which increases the competitiveness of LNG both in our country and abroad.

 

Keywords: liquefied natural gas; reservoir; quality; standard; certification tests.

 

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UDC 622.276.57          DOI: 10.33285/1999-6934-2021-3(123)-43-46

 

SMALL-SIZED EXOTHERMAL HEATER
TO PREVENT AND COMBAT HYDRATE FORMATION (p. 43)

 

Timergaley Kabirovich Apasov, Cand. of tech. sci., associate professor,

Roman Rashitovich Sagitdinov, masters student,

Ekaterina Evgenievna Levitina, Cand. of tech. sci., associate professor,

Marina Ivanovna Zaboeva, Cand. of tech. sci., associate professor

 

Tyumen Industrial University

70, Melnikaite str., Tyumen, 625039, Russian Federation,

e-mail: apasov-timur@mail.ru, levitinaee@tyuiu.ru

 

Gaydar Temirgaleevich Apasov, Cand. of tech. sci., chief specialist

 

LLC "Gazpromneft Research Technical Center"

14, 50 let Oktyabrya str., Tyumen, 625048, Russian Federation,

e-mail: apasov_gaydar@inbox.ru

 

In the oil fields of Western Siberia, most of the production wells are operated by a mechanized way. At the same time, very often complications arise in the operation of wells associated with the formation of hydrates under certain temperature and pressure conditions. It leads to the failure of wells as a result of hydrate plugging of pump pipes and Christmas trees. The paper presents an innovative method for preventing and combating the formation of hydrocarbon gas hydrates at the wellhead. It is proposed to use small-sized exothermic heaters, which allow warming up the sections of the Christmas tree in a few minutes and restoring the working capacity of the well. Pilot tests have confirmed the performance and efficiency of this development at 40 C. The introduction of these heaters will increase the turnaround time for oil wells.

 

Keywords: well; hydrate formation; gas hydrates; overhaul period; heater.

 

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UDC 621.643:620.197.5          DOI: 10.33285/1999-6934-2021-3(123)-47-51

 

ANALYSIS AND CLASSIFICATION OF THE CAUSES OF DEFECTS
IN PROTECTIVE COATINGS OF UNDERGROUND PIPELINES (p. 47)

 

Roman Anatolievich Matsiuk, post-graduate student, Department of Construction and Repair of oil and gas pipelines and Tank Farms,

Oksana Yurievna Volodchenkova, Cand. of tech. sci., associate professor, Department of Construction and Repair of oil and gas pipelines and Tank Farms

 

National University of Oil and Gas "Gubkin University"

65, bld. 1, Leninsky prosp., Moscow, 119991, Russian Federation,

e-mail: romanmatsiuk@mail.ru, oksvol611@rambler.ru

 

The paper analyzes the main causes and features of defects formation in protective coatings at all stages of an underground pipeline operational life cycle. The aim of the work was to introduce a general approach to the consideration and assessment of the causes of protective coatings destruction. Differences in coatings operational conditions during the preparatory, construction and operational periods of construction have been revealed. When analyzing the sources of a force impact, it is necessary to take into account their cyclic periods, the place of force application and flow in the operational temperature regime. Based on the studies of domestic and foreign scientists, a classification has been developed that allows characterizing the cause of the defect occurrence in the protective coating by the time interval. It is concluded that it is necessary to study the causes of defects occurrence in more detail, which would make it possible to develop a unified approach to the problem of engineering protection of underground pipelines coatings. The developed classification can be used when developing technological maps, designing methods for engineering protection of underground pipelines coatings, as well as educational and research works concerning the problems of mechanical protection of underground pipelines from corrosion.

 

Keywords: underground pipeline; protective coating; defect; classification of causes; loads and impacts; physical-mechanical impacts.

 

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UDC 622.692.4.053          DOI: 10.33285/1999-6934-2021-3(123)-52-59

 

SCIENTIFIC AND METHODOLOGICAL GROUNDS OF THE ALGORITHM AND
THE PROGRAM FOR THE DESIGN CALCULATION OF POTENTIALLY NEW TUBULAR
PLASTIC SHOCK ABSORBERS OF PROMISING SUPPORTS OF THE MAIN PIPELINES
FOUNDATIONS OF THE OIL AND GAS COMPLEX OF THE RUSSIAN FEDERATION
(p. 52)

 

Alexander Nikolaevich Gromyko, Cand. of tech. sci., associate professor,

Andrey Aleksandrovich Mironov

 

National University of Oil and Gas "Gubkin University"

65, bld. 1, Leninsky prosp., Moscow, 119991, Russian Federation,

e-mail: grelix7@yandex.ru

 

Analytical models of design calculations based on static and dynamic elastic-plastic deformation of tubular energy-absorbing elements that make up a tubular plastic shock absorber are proposed. The developed model and practical results allow a transition to a deeper study of tubular energy-absorbing elements under their static and dynamic loading, taking into account additional corrective factors and loading conditions.

 

Keywords: tubular plastic shock absorber; basement support; tubular element; energy absorbing device; elastic-plastic deformation; hinged four-bar linkage.

 

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UDC 622.33          DOI: 10.33285/1999-6934-2021-3(123)-61-65

 

INTERNATIONAL EXPERIENCE OF COAL MINE GAS UTILIZATION AND
PROSPECTS FOR USING COAL MINE METHANE IN JSC "SUEK-KUZBASS"
(p. 61)

 

Evgeny Eduardovich Pozdeev, coordinator of gas-engine projects,

Igor Anatolievich Komissarov, deputy-chief engineer of Production Unit (PU) "Control of methane degassing and utilization"

 

JSC "SUEK-Kuzbass"

1, Vasiliev str., Leninsk-Kuznetsky, 652507, Kemerovsky region, Russian Federation,

e-mail: PozdeevEE@suek.ru, KomissarovIA@suek.ru

 

Coal mine degassing methane is the one of alternative energy sources and raw material for gas engine fuel production. The existing technologies of oxygen removal from degassing methane and limitations due to the instability of aero-methane mixtures and flow-rate essentially limit the further use.

 

Keywords: methane utilization; coal mine degassing methane; methane-air mixture enrichment; gas engine fuel.

 

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UDC 622.333:622.817.4          DOI: 10.33285/1999-6934-2021-3(123)-66-70

 

MICROSTRUCTURE OF METHANE COAL BEDS (p. 66)

 

Ekaterina Vasilevna Ulyanova, Dr. of tech. sci., leading researcher,

Olga Nikolaevna Malinnikova, Dr. of tech. sci., Head of the Laboratory,

Anna Viktorovna Kharchenko, Cand. of tech. sci., associate professor, senior researcher,

Boris Nikolaevich Pashichev, graduate student, leading engineer

 

N.V. Melnikov Institute of Comprehensive Exploitation of Mineral Resources, Russian Academy of Sciences

4, Kryukovsky tupik, Moscow, 111020, Russian Federation,

e-mail: ekaterina-ulyanova@yandex.ru, olga_malinnikova@mail.ru, av-kharchenko@yandex.ru,
borisnik-pa@yandex.ru

 

Studies of coal beds gas saturation in the A.D. Ruban and S.M. Kirov mines of JSC "SUEK-Kuzbass" revealed that the residual gas amount in the bottomhole zone of beds is associated not only with the geological characteristics of coal, but also with its structure at the micron level. It is shown that for coals with a volatile Vdaf ≈ 40 %, lower gas content values are observed for coals with a more ordered microstructure, and the microstructure of coals with higher gas content is more chaotic. The use of methods of electron paramagnetic resonance, infrared spectroscopy and diagrams "complexity-entropy" made it possible to establish the relationship between the increase in uncompensated groups (free radicals) in the coal structure, the disorder of the microstructure and the value of gas content.

 

Keywords: fossil coal; metamorphism; gas content; sorption surface; microstructure; spectroscopic methods.

 

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UDC 622.33          DOI: 10.33285/1999-6934-2021-3(123)-71-78

 

FORMATION FEATURES OF METHANE MASS TRANSFER
IN THE INTERBEDDED ROCKS (p. 71)

 

Vitaly Aleksandrovich Trofimov, Dr. of tech. sci., Head of the Laboratory,

Yury Alekseevich Filippov, Cand. of tech. sci.

 

Institute of Comprehensive Exploitation of Mineral Resources Russian Academy of Sciences

4, Kryukovsky tupik, Moscow, 111020, Russian Federation,

e-mail: asas_2001@mail.ru, filippov.yury@gmail.com

 

Over the years of underground mining of coal deposits, it has been revealed that methane is released from the enclosing rocks into the worked-out area, often in large quantities both in a quasi-static and dynamic form under various technological schemes and geological conditions of field development.

This paper presents the theoretical aspects of developing geo-mechanical and filtration models which describe the formation of gas reservoirs and methane mass transfer of in a rock when developing a single horizontal coal seam. Using these models, the regularities of the development in time of the stress-strain state of the rock mass during the development of the formation by a long face were obtained.

In particular, the zones of unloading and surcharging in the roof and soil of the formation were obtained, based on which the parameters of the induced porosity and permeability in the enclosing rock mass were determined. These parameters will make it possible to simulate the transfer of methane from the surrounding massif to the mined-out space (goaf).

The theoretical foundations of the method for determining the permeability of rocks in the mode of non-stationary filtration are presented.

 

Keywords: coal seam; methane; filtration; permeability; mass transfer; coal massif; interlayer; stress-strain state; geo-mechanical numerical models; filtration numerical models.

 

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UDC 622.324.5          DOI: 10.33285/1999-6934-2021-3(123)-79-84

 

THE PROPOSALS FOR SELECTION OF GEOLOGICAL AREAS AIMED
FOR UNDERGROUND COAL GASIFICACION AND METHANE RECOVERY
IN KUZNETSK COAL BASIN (ON THE EXAMPLE OF LENINSK COAL FIELD)
(p. 79)

 

Valery Aleksandrovich Fedorin, Dr. of tech. sci., chief researcher,

Vyacheslav Yakovlevich Shakhmatov, Cand. of tech. sci., leading researcher,

Vladimir Ivanovich Klishin, corresponding member of RAS, Director

 

Institute of Coal SB RAS

10, Leningradsky prosp., Kemerovo, 650065, Russian Federation,

e-mail: fedorinva@ic.sbras.ru

 

The requirements for the selection of the geological areas to be used for underground gasification and methane recovery applying in special conditions of Leninsk coal field of Kuzbass are considered in the paper. A new geo-technological scheme of in-line methane drainage and underground gasification with electricity generation on combined-cycle gas plants is proposed.

 

Keywords: underground gasification; combined-cycle gas plant; in-line methane drainage.

 

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UDC 622.791.(315)          DOI: 10.33285/1999-6934-2021-3(123)-85-89

 

JUSTIFICATION OF A WELL PLACEMENT,
UNCOVERING A COAL SEAM (p. 85)

 

Nikolai Aleksandrovich Drizhd, Dr. of tech. sci.,

Ravil Altavovich Musin, Dr. of tech. sci.,

Anton Yurievich Aleksandrov, masters student

 

Karaganda Technical University

56, Nursultan Nazarbaev prosp., Karaganda, 100027, Republic of Kazakhstan

 

Maria Pavlovna Khaidina, Cand. of tech. sci.

 

National University of Oil and Gas "Gubkin University"

65, bld. 1, Leninsky prosp., Moscow, 119991, Russian federation,

e-mail: mmp2003@inbox.ru

 

The purpose of the work was to determine and justify the location of an experimental well for methane extraction from coal seams by developing an integrated analytical method for selecting the location of wells. As a result, an assessment of the resource base of the Taldykuduk section of the Karaganda coal basin of the Republic of Kazakhstan is presented. The well placement technique was determined and substantiated. Recommendations on the experimental wells placement are given. Differences in the location and movement of natural gas in conventional porous and fractured reservoirs in coal seams are determined, which predetermine the differences in exploration methods and technologies for the development of traditional gas and coal seams. The practical value lies in the creation of a methodological recommendation for determining the location of wells.

 

Keywords: methane; coal seams; well placement; Taldykuduk section; methane safety; gas production; coal content.

 

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UDC 622.245.59          DOI: 10.33285/1999-6934-2021-3(123)-90-94

 

APPLICATION OF PLASMA PULSE IMPACT TECHNOLOGY TO INCREASE
THE PERMEABILITY OF COKING COALS OF INCREASED HARDNESS AND
LOW WATER SATURATION FOR THE PURPOSE OF EARLY DEGASSING
(p. 90)

 

Andrey Sergeevich Desyatkin, Cand. of geol.-mineral. sci., chief project engineer,

Petr Georgievich Ageev, corresponding member of International Academy of Ecology, Man and Nature Protection Sciences

 

LLC "Georesonance"

4, bld. 2/G, office 516G, 22nd km of Kievskoe shosse, "Rumyantsevo" Moscow business-park poselenie, Moscow, 108811, Russian Federation,

e-mail: a.desyatkin@novas-energy.ru, p.ageev@novas-energy.ru

 

Innovative project of LLC "Georesonance" "Technology and methodology of early degassing of coal seams in order to ensure the safe operation of miners and the extraction of methane on an industrial scale" in 2014 passed an examination, received the state support and was recognized as meeting the requirements of the Federal Law of the Russian Federation of 28.09.2010 No. 244-FZ "On the Skolkovo Innovation Center." Since that time the technology of plasma-pulse impact (PPI) on coal seams has been applied in practice. The PPI technology application increases coal seams permeability due to the creation of micro-fracturing in the radius around wells by no less than 250 m. The results of PPI technology application on coke coals in order to increase the permeability and methane recovery volume during preliminary degassing in "Raspadskaya-Koksovaya" coal mine are presented.

 

Keywords: coal seam; gas content; early degassing; well; extraction of methane; permeability; technology of plasma-pulse impact.

 

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RESULTS OF "NEFTEGAZ-2021" INTERNATIONAL EXHIBITION
(p. 95)

 

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NATIONAL UNIVERSITY OF OIL AND GAS "GUBKIN UNIVERSITY"

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