Articles Archive

№ 2/287, 2017

Title
Authors
Category
Sedimentation features of Minghuazhen formation Miocene series in Shanxi oilfield of China
Geosciences

Authors: Igor S. GUTMAN graduated from the Moscow Mining Institute in 1956. He has been working as professor of the Department of Production Geology of Gubkin Russian State University (National Research University) of Oil and Gas since 1994, he is also Director of the Institute of Engineering and Scientific Expertise in the Field of Oil and Gas Fields Development (affiliated to the department since 1997) and Center for Computer Modeling of Hydrocarbons (since 2002). He is author of 7 books and more than 150 scientific papers. E-mail: mail@ipne.ru
Zhiqiang GU was born in 1988. Master of engineering and technology. He is Ph.D. student of the Department of Production Geology of Gubkin Russian State University of Oil and Gas (National Research University). E-mail: guzq1988@hotmail.com
Tatyana R. SULTANSHINA Ph.D. student of the Department of Production Geology of Gubkin Russian State University of Oil and Gas (National Research University). Е-mail: sultanshina.tatyana@yandex.ru

Abstract: Based on detailed correlation of well logs in shanxi oil field china and analysis paleosections show that sedimentation of Minghuazhen formation happened under alternate dip of adjacent tectonic blocks and their limiting faults are synsedimentary. Analysis of thickness maps also indicates the presence of block tectonics

Index UDK: 553.98.061.4

Keywords: well logs correlation, block tectonic, synsedimentary faults, Shanxi oil field (China)

Bibliography:
1. Gong Z., Zhang G., Cai D., He S. Late-stage Hydrocarbon Accumulation in the Bozhong Depression of the Bohai Bay Basin as Controlled by Neotectonism//Acta geologica sinica, 2004, vol. 78, no. 3, p. 632–639.
2. Allen M.B., Macdonald D.I.M., Xun Z., Vincent S.J., Brouet-Menzies C. Early Cenozoic two-phase extension and late Cenozoic thermal subsidence and inversion of the Bohai Basin, northern China//Marine and Petroleum Geology, 1997, vol. 14, no. 7/8, p. 951-972.
3. Jiafu Qi, Qiao Yang. Cenozoic structural deformation and dynamic processes of the Bohai Bay basin province, China//Marine and Petroleum Geology, 2010, vol. 27, no. 4, p. 757–771.
4. Zhang Zhen, Bao Zhidong, Tong Hengmao, Wang Yong, Li Haowu. Tectonic evolution and its control over deposition in fault basins: A case study of the Western Sag of the Cenozoic Liaohe Depression, eastern China//Petroleum Science, 2013, no. 10, p. 269–281.
5. Geology of reservoir oil and gas in rift basin, east China/Wang Tao. —Beijing: China petroleum industry press, 1997, 196 p.
6. Gutman I.S., Balaban I.Yu., Staroverov V.M. et al., Metodicheskie rekomendatsii k korrelyatsii razrezov skvazhin [Guidelines to the well log correlation]. Moscow, 2013, 112 p.
7. Gutman I.S., T.R. Sultanshina, S.V. Khalyapin. Structural features of oil deposit in the horizon YuS1 of Gribnoye field. Neftjanoe hozjajstvo. — Oil Industry, 2014, no. 5, >p. 60-64 (in Russian).
8. Shpindler A.A. Evaluation of permeability faults in one of the oilfield of Tomsk region. Problemy geologii i osvoenija nedr: Trudy XVII Mezhdunarodnogo simpoziuma imeni akademika M.A. Usova studentov i molodyh uchjonyh, posvjashhennogo 150-letiju so dnja rozhdenija akademika V.A. Obrucheva i 130-letiju akademika M.A. Usova, osnovatelej Sibirskoj gorno-geologicheskoj shkoly [Problems of Geology and Subsurface Development: Proceedings of the 17th International Scientific Symposium of students, Postgraduates and young Scientists devoted to the 150th Anniversary of Academician V.A. Obruchev and 130th Anniversary of Academician M.A. Usov, Founders of Siberian Mining School]. Tomsk, 2013, pp. 344–355. (in Russian).
9. Sorkhabi R., Suzuki U, Sato D. Structural Evaluation of Petroleum Sealing Capacity of Faults//SPE Asia Pacific Conference on Integrated Modeling for Asset Manager. Yokohama, 2000, p. 230–239.

Generation Potential of Oligocene-Miocene Sediments of Cuu Long Basin
Geosciences

Authors: Vu Nam HAI graduated from Gubkin Russian State University of Oil and Gas in 2015. He is an assistant of the Department of Prospecting and Exploration of Oil and Gas of Gubkin Russian State University of Oil and Gas (National Research University). Scientific interests are in the areas of 3D modeling of the hydrocarbon systems and the oil and gas potential on the continental shelf of Vietnam. He has published 3 works.
E-mail: sphere1707@yandex.ru

Abstract: The article is devoted to the research of the generation potential of Oligocene—Miocene sediments of the Cuu Long basin on the basis of the results of digital modelling of the generation-accumulation system. The main oil-and-gas source rocks of the basin have been studied. These are represented by fine-grained sediments of the lake-marsh facies of Oligocene age and contain rich amount of organic matter as well as type I and II kerogen. Currently, the source rocks reach maturity threshold at the depth of around 2700-2900 m, the depth of the oil window ranges from 3100 to 3400 m, the dry gas window occurs at deeper than 5500 m. According to the results of the pyrolysis analysis of the core samples and sludge samples, organic matter of Lower Miocene source rocks has not yet reached maturity to generate hydrocarbons, except for the submerged parts of the central depression where organic matter has partially reached such maturity thresholds. 3D modeling of the generation-accumulation hydrocarbon systems helped to build distribution maps of vitrinite reflectance values (Ro %) in the Cuu Long basin. On the basis of the digital model, created with a PetroMod petroleum systems modeling software, the zone of distribution of hydrocarbon deposits is forecasted

Index UDK: 550.8

Keywords: prospect, exploration, reserves, hydrocarbons, reservoir, oil, gas, kerogen, digital model, facies, hydrocarbon system, Cuu Long basin

Bibliography:
1. Kerimov V.Ju., Mustaev R.N., Senin B.V., Lavrenova E.A. Zadachi bassejnovogo modelirovanija na raznyh jetapah geologorazvedochnyh rabot. Neftjanoe hozjajstvo, 2015, no. 4, p. 26-29.
2. Leonova E.A. Geologicheskoe stroenie i neftegazonosnost’ Shonghongskogo progiba (severnyj shel’f V’etnama). Trudy Rossijskogo gosudarstvennogo universiteta nefti i gaza imeni I.M. Gubkina, 2016, no. 2, p. 16.
3. Shnip O.A. Sostav i neftegazonosnost’ phundamenta shel’fa severnogo i central’nogo V’etnama. Trudy Rossijskogo gosudarstvennogo universiteta nefti i gaza imeni I.M.Gubkina, 2012, no. 1, 53 p.
4. Geologija i neftegazonosnost’ phundamenta Zonkskogo shel’fa. E.G. Aresev, V.P. Gavrilov, Chan Le Dong, Nguyen Dao, Ngo Thuong San, O.A. Shnip i dr. M.: Izdatel’stvo «Neft’ i gas», 1997, p. 56-65.
5. Nguyen Van Duc, Ivanov A.N., Pham Xuan Son, Vu Van Khuong. Otchet «Izuchenie uclovii phormirovanija zalejei uglevodorodov v Cuulongckom bacceine dlja vyjavlenija geologicheskih zakonomernoctei ih razmeshhenija», tema no. NIP-I.4, NIPI morneftegas, SP «Vietsovpetrol», 2013, p. 40-45.

Modelling of geo-fluid pressures within the Sakhalin shelf
Geosciences

Authors: Rustam N. MUSTAEV graduated from Orenburg State University in 2010. He is Candidate of Geological and Mineralogical Sciences, assistant professor of the Department of Theoretical Fundamentals of Prospecting and Exploration of Oil and Gas of Gubkin Russian State University of Oil and Gas (National Research University). He is specialist in the Black Sea-Caspian megabasin. He is author of 52 scientific publications, two monographs and two textbooks. E-mail: r.mustaev@mail.ru
Alexander V. OSIPOV graduated from Gubkin Russian State University of Oil and Gas in 2010. He is Candidate of Geological and Mineralogical Sciences, assistant professor of the Department of Theoretical Fundamentals of Prospecting and Exploration of Oil and Gas of Gubkin Russian State University of Oil and Gas (National Research University). He is author of more than 50 scientific publications, including one monograph and a textbook for high schools. E-mail: osipov.a@gubkin.ru
Vagif Yu. KERIMOV was born in 1949. He graduated from Azizbekov Azebaijan Institute of Oil and Petrochemistry. He is Doctor of Geological and Mineralogical Sciences, professor, Head of the Department of Theoretical Fundamentals of Prospecting and Exploration of Oil and Gas of Gubkin Russian State University of Oil and Gas (National Research University). He has published over 200 works. E-mail: vagif.kerimov@mail.ru
Alexander V. BONDAREV is Candidate of Geological and Mineralogical Sciences, assistant professor of the Department of Theoretical Fundamentals of Prospecting and Exploration of Oil and Gas of Gubkin Russian State University of Oil and Gas (National Research University). He is author of more than 30 scientific publications. E-mail: jcomtess@yandex.ru

Abstract: Based on the results of the simulation with respect for the assessment of the changes in the compaction of rocks and their filtration-capacitance properties and density the zones of abnormal pore pressures are identified in the section of the Prisakhalin shelf. The results of the log-derived pore pressure estimation by the equivalent depth method are presented. The results of modeling are compared with the data obtained by various methods and direct borehole measurements. The influence of neotectonic processes on the distribution of pressures is estimated. The effect of unloading zones on the process of formation of abnormal pore pressures zones is estimated. The difference in the distribution of pore pressures was established within the Kirinsky license area, in the South Ayash structure and in the Piltun-Astokhskoye field

Index UDK: 550.8:004.9

Keywords: abnormal pore pressure, gas, geo-fluid pressure, modeling, oil, den- sity, Prisakhalin shelf, hydrocarbons, compaction

Bibliography:
1. Aleksandrov B.L., Shilov G.Ya., Kerimov V.Yu.O., Belyaev S.V., Skripka A.A. Osobennosti kolichestvennoy otsenki anomal’no vysokikh porovykh davleniy po dannym GIS v slozhnykh geolo- gicheskikh usloviyakh Messoyakhskoy gruppy mestorozhdeniy uglevodorodov. Karotazhnik, 2010, no. 5, p. 41-51.
2. Bogoyavlenskiy V.I., Kerimov V.Yu., Ol’khovskaya O.O., Mustaev R.N. Povyshenie effektivnosti i bezopasnosti poiskov, razvedki i razrabotki mestorozhdeniy nefti i gaza na akvatorii Okhot-skogo moray. Territoriya Neftegaz, 2016, no. 10, p. 24-32.
3. Guliev I.S., Kerimov V.Yu., Mustaev R.N. Fundamental’nye problemy neftegazonosnosti Yuzhno-Kaspiyskogo basseyna. Doklady Akademii nauk RF, 201, t. 471, no. 1, p. 62-65.
4. Kerimov V.Yu., Bondarev A.V., Sizikov E.A., Sinyavskaya O.S., Makarova A.Yu. Usloviya formirovaniya i evolyutsii uglevodorodnykh sistem na Prisakhalinskom shel’fe Okhotskogo moray. Neftyanoe khozyaystvo, 2015, no. 8, p. 22-27.
5. Kerimov V.Yu., Gorbunov A.A., Lavrenova E.A., Osipov A.V. Modeli uglevodorodnykh sistem zony sochleneniya Russkoy platformy i Urala. Litologiya i poleznye iskopaemye, 2015, no. 5, p. 445-458.
6. Kerimov V.Yu., Guliev I.S., Guseynov D.A., Lavrenova E.A., Mustaev R.N., Osipov A.V., Serikova U.S. Prognozirovanie neftegazonosnosti v regionakh so slozhnym geologicheskim stroeniem. M.: OOO «Izdatel’skiy dom Nedra», 2015, 404 p.
7. Kerimov V.Yu., Lavrenova E.A., Sinyavskaya O.S., Sizikov E.A. Otsenka uglevodorodnogo potentsiala generatsionno-akkumulyatsionnykh uglevodorodnykh sistem Okhotskogo moray. Trudy Rossiyskogo gosudarstvennogo universiteta nefti i gaza im. I.M. Gubkina, 2015, no. 3, p. 18-30.
8. Kerimov V.Yu., Rachinskiy M.Z. Geoflyuidodinamicheskaya kontseptsiya akkumu- lyatsii uglevodorodov v prirodnykh rezervuarakh. Doklady Akademii nauk RF, 2016, t. 471, no. 2, p. 187–190.
9. Osipov A.V., Zaytsev V.A., Ryabukhina S.G., Bondarev A.V. Geomekhanicheskoe modelirovanie kollektorskikh svoystv Kirinskogo litsenzionnogo uchastka (Prisakhalinskiy shel’f). 18-aya nauchno-prakticheskaya konferentsiya po voprosam geologorazvedki i razrabotki mestorozhdeniy nefti i gaza «Geomodel’-2016», Gelendzhik, 2016.
10. Osipov A.V., Zaytsev V.A., Ryabukhina S.G., Sizikov E.A. Otsenka vtorichnykh fil’tra-tsionnykh parametrov kollektorov v rezul’tate geomekhanicheskogo modelirovaniya (Prisakhalinskiy shel’f). 18-aya nauchno-prakticheskaya konferentsiya po voprosam geologorazvedki i razrabotki mestorozhdeniy nefti i gaza «Geomodel’-2016», Gelendzhik, 2016.
11. Shilov G.Ya., Vasilenko E.I., Osipov A.V. Issledovanie flyuidodinamicheskikh faktorov pri poiskakh skopleniy glubinnykh uglevodorodov v zemnoy kore. Neft’, gaz i biznes, 2015, no. 8, p. 25-30.
12. Rachinsky M.Z., Kerimov V.Yu. Fluid dynamics of oil and gas reservoirs. Scientific Editor Gorfunkel M.V. Scrivener Publishing, USA, 2015, 622 p.

Mineralogical features of Osinskiy horizon carbonate reservoir rocks of Nepsko-Botuoba anteclise
Geosciences

Authors: Andrey S. KUZNETSOV is post-graduate student and senior engineer of the Department of Lithology of Gubkin Russian State University of Oil and Gas (National Research University). E-mail: andrey.kuznecov.91@mail.ru
Irina A. KITAEVA is Assistant Lecturer of the Department of Lithology of Gubkin Russian State University of Oil and Gas (National Research University). E-mail: irina_kitaeva@bk.ru

Abstract: The main carbonate deposits rock types of Osinskiy horizon of Nepsko-Botuo- ba anteclise were distinguished and characterized. The detailed mineralogical analysis of distinguished lithotypes, which was perfomed by the methods of x-ray diffractometry and microprobe analysis, detected a wide spectrum of authigenic minerals, such as halite, anhydrite, ankerite, graphite, cuboargyrite etc., in limestone and dolomite rocks. The ankerite formation mechanism was validated. The absence of direct correlation between potassium anomalies in Osinskiy horizon basement and presence of clay minerals were determined. The minerology of intervals with increased radioactivity values was characte-rized

Index UDK: 551.7.022

Keywords: carbonate rocks, minerology, lower Cambrian, Osinskiy horizon, Nepsko-Botuoba Anteclise, Siberian platform

Bibliography:
1. Dmitrievsky A.N., Kuznetsov V.G., Iluhin L.N., Postnikova O.V. and colleagues Structure and conditions of formation of Osinskiy horizon of the south part of Siberian platform complimented by it’s oil-and-gas content. Prediction of oil and gas occurrence of East Siberia. MINHiGP, 1990, p. 23-28.
2. Eskin A.A. Morphological and genetic types of the void space structures of carbonate rocks and factors of their formation (evidence from the eastern side of Melekesskaya depression and the western side of Yuzhno-Tatarsky arch). Author’s abstract candidate of geological and mineralogical sciences. Kazan, 2014, p. 21.
3. Konovalceva E.S. Secondary processes in reservoir rocks of productive sediments of Yaractinski deposit. Neftegazovaya Geologiya. Teoriya I Praktika, 2010, no. 5, p. 6-7. http:// www.ngtp.ru/rub/2/18_2010.pdf
4. Neruchev S.G. Periods of radioactivity on the Earth surface and their influence on the orga- nic world revolution. Neftegazovaya Geologiya. Teoriya i praktika, 2007, no. 2, p. 3-8. http:// www.ngtp.ru/rub/10/032.pdf

Geodynamic Evolution of South-Eastern Part of East European Platform to Estimate Prospects for Oil and Gas
Geosciences

Authors: Vadim V. MASLOV graduated from Gubkin Russian State University of Oil and Gas in 1995. He is Candidate of Geological and Mineralogical Sciences, associate professor of the Department of Geology of Gubkin Russian State University of Oil and Gas (National Research University). His research interests include petroleum potential of Upper Paleozoic complex deposits in the Ustyurt region, as well as oil and gas potential shelves of marginal seas. He is author of 15 articles and co-author of one monograph. E-mail: maslov.v@gubkin.ru
Lyubov F. GORUNOVA graduated from Gubkin Moscow Institute of Petrochemical Gas Industry in 1978, she is Candidate of Geological and Mineralogical Sciences, associate professor of the Department of Geology of Gubkin Russian State University of Oil and Gas (National Research University). Her scientific interests are related with studies of the geological structure and prospects of petroleum capacity of the complexes of the Caspian cavity sediments, areas of connection with outlying structures — Scythian and Turan plates. She is author of 20 scientific publications and 1 textbook. E-mail: luba-gor@mail.ru
Oleg S. OBRYADCHIKOV graduated from Gubkin Russian State University of Oil and Gas in 1960. He is Candidate of Geological and Mineralogical Sciences, associate professor of the Department of Geology of Gubkin Russian State University of Oil and Gas (National Research University). His scientific interests are related with the regional geology of the Russian Federation and overseas, geological modeling in oil and gas industry and salt dome tectonics. He is author of more than 80 scientific publications, co-author of two monographs. E-mail: osobr19@yandex.ru

Abstract: Another interpretation of the geological structure of the Donbas, the Caspian cavity and the relationship of the southeast of the East-European platform with the surrounding Scythian, Turan plate is offered in the article. The presented ideas about the peculiarities of the geological structure, development history and its oil and gas potential indicate the important role the geodynamic processes which took place there

Index UDK: 550.3

Keywords: Donbass, Turan plate, Scythian plate, folding, fat, oil and gas capa- city

Bibliography:
1. Zhuravlev V.S. Comparative tectonics ekzogonalnyh cavities of Russian platform. Wr. MGK XXII session. Rep. modern geol. M .: Science, 1964, р. 25-39.
2. Paleozoic sediments of border areas Turan and Russian plates (geological structure and petrogas). Ed.: V.A. Benenson, N.Y. Kunin, M.N. Morozova, K.K. Nurzhanov. M.: Nauka, 1978, 102 p.
3. Zonenshain L.P., Kuzmin M.I., Natapov L.M. Plate tectonics in the USSR. In 2 books. M.: Nedra, 1990, box. 1, 326 p, box. 2, 334 p.
4. Brajnikov O.G. Forecast petrogas of mobile lithospheric blocks. M.: Nedra, 1997, 251 p.
5. Obryadchikov O.S., Taskinbayev K.M. Geodynamic nature of the sedimentary cover and the petrogas perspectives of the Aral-Caspian region. In. «Geology of the Caspian and Aral Seas regions». Almaty: Kazakh Geological Society «KazGeo», 2004, p. 91-97.
6. Astrakhan carbonate massif: the structure and oil and gas. Edited by JA Volozh, B.C. Parasyny. M.: Science World, 2008, 221 p.
7. Leonov Y.G., Volozh Y.A., Antipov M.P., Bykadorov V.A., Hereskova T.N. The consolidated crust of the Caspian region. Works of GIN RAN, vol. 593, 2010, 64 p.
8. Leonov Y.G., Volozh Y.A., Antipov M.P., etc. The consolidated crust of the Caspian region: the experience of regionalization. Wr. GIN, vol. 593. M.: GEOS, 2010, 64 p.
9. Gavrilov P.V., Maslov V.V. petroleum potential of the upper Paleozoic complex of the Eastern Ustyurt (Uzbekistan). Collection of scientific works of Russian state University of oil and gas imeni I.M. Gubkina, 2015, no. 4 (281), р. 15-28.
10. Maslov V.V., Miloserdova L.V. Tectonic nonuniformity and oil-and-gas content of the Turan Plate based on the satellite images interpretation. Collection of scientific works of Russian state University of oil and gas imeni I.M. Gubkinf, 2016, no. 3, р. 68-83.

Analysis of factors affecting productivity of fractured horizontal well in tight gas formations (a case study of reservoirs in Western Sichuan, China)
Geosciences

Authors: Anlun WANG is a PhD candidate of Gubkin Russian State University of Oil and Gas (National Research University). E-mail: law8912@163.com
Vladimir S. YAKUSHEV is Doctor of Geology and Mineralogy, professor of the Department of Gas and Gas-Condensate Reservoir Engineering of Gubkin Russian State University of Oil and Gas (National Research University), member of the Academy of Natural Sciences (Section of Oil and Gas). His professional interests are prospecting, exploration, exploitation, procession and storage of natural gas. E-mail: law8912@163.com

Abstract: An analytical model was used to analyze the affect of factors on the productivity of fractured horizontal gas well in formations with permeability of about 0,1 mD. The following factors were considered: fracture width, fracture half-length, the number of fractures and fracture permeability. It was shown that unlike conventional low-permeability reservoirs, fracture permeability in tight formations has limited effect on the well productivity, whereas fracture half-length and the number of fractures are the main affect factors. It is noted that increasing fracture width thousands of times has no effect on the well productivity, and therefore, mesh simplification for numerical simulation of fractured horizontal wells in such formations was proved feasible

Index UDK: 662.279.3

Keywords: tight formation, fractured horizontal well, factors, affecting well pro-ductivity

Bibliography:
1. Jun Ye, Tong Zhu, Zejiang Zhao. A study of gas reservoirs of upper shaximiao formation (J2s) and its origin in xinchang gas field, west Sichuan//Experimental petroleum geology, 1998, 12.
2. Lee S.-T. and Brockenbrough, J.R. A new approximate analytic solution for finite-conductivity vertical fractures, 1986. SPE Form Eval 1 (1): 75-88. http://dx.doi.org/10.2118/ 12013-PA.
3. Gringarten A.C. and Ramey, H.J., and Raghavan, R. 1974. Unsteady-State pressure distributions created by a well with a single infinite-conductivity vertical fracture. SPEJ 14(4): 347-360. SPE 4051-PA.
4. Bo Song, Michael J. Economides. Design of multiple transverse fracture horizontal wells in shale gas reservoirs. 2011 SPE 140555.
5. Yongren Sun, Shan Ren, Shize Wang, Qidong Xiong. Study on the key fracturing technology for tight gas reservoirs in the west of Sichuan. Drilling and production technology, 2008, vol. 31, no. 4, p. 68-70.
6. Zhijun Wu, Shunli He. Geologic characteristics of Xinchang tight gas reservoir and reasonable fracturing scale. Natural gas industry, 2004, vol. 24, no. 9, p. 93-96.
7. Huachang Li, Zhimin du, Yong Tang, Yong Wang. The calculation of the control reserve of single horizontal well in shaerduan formation of xinchang gas field. Drilling and production technology, 2012, vol. 35, no. 2, p. 51-53.
8. Xu Wang, Mingwen Tan, Xiaoyong Yan, Guangpeng Xu, Wenlong Deng, Song Feng. Evaluation of horizontal well performance in shaximiao formation JS21 of xinchang gas field. Drilling and production technology, 2012, vol. 35, no. 1, p. 45-48.
9. Stalgorova, E. and Mattar, L. Analytical model for unconventional multifractured composite systems. Paper SPE 162516 presented at the SPE Canadian unconventional resources conference, Calgary, Alberta, 30 October-1 November, 2013.
10. Brown, M., Ozkan, E., Raghavan, R. et al. 2009. Practical solutions for pressure transient responses of fractured horizontal wells in unconventional reservors. Paper SPE 125043 presented at the SPE annual technical conference and exhibition, New Orleans, Louisiana, 4-7 October. http:/dx.doi.org/10.2118/125043-MS.
11. Hanqiao Jiang, Jun Yao, Ruizhong Jiang. Theory and methods of reservoir engineering. 2-nd edition. M.: China university of petroleum press, 2006, p. 171.

Thermohydrodynamical tests of gas wells in the conditions of hydrate formation
Geosciences

Authors: Zoya A. VASILYEVA graduated from Lomonosov Moscow State University in 1975. She is a Candidate of Technical Sciences, Associate Professor of the Department of Development and Exploitation of Gas and Gas-Condensate fields of Gubkin Russian State University of Oil and Gas (National Research University). She is specialist in the gas and oil fields development and simulation. Author of more than 70 scientific publications. E-mail: zoyavac@gmail.com
Chenlong LE — post-graduate student of the department «Gas and Gas-Condensate Reservoir Engineering» of Gubkin Russian State University of Oil and Gas (National Research University) (Chinese citizen). E-mail: lcl880301@gmail.com

Abstract: The technique of interpretation of the results of thermohydrodynamical tests of gas wells in the conditions of hydrate formation. It is proposed to implement standard procedures on the phase diagram to construct a curve of phase equilibrium hydrate-gas-water measurements buttonhole temperatures and pressures, which is based on the dependence of the buttonhole temperature from the pressure. The first mode is to determine the coefficients Joule-Thomson at decrease and increase of pressure at reservoir conditions, and then the phase diagram predicted subsequent studies in «no hydrate formation» mode

Index UDK: 622.248.3

Keywords: thermodynamic conditions, hydrate formation, temperature and pressure transient well testing, interpretation

Bibliography:
1. Vasilyeva Z.A., Dzhafarov D.S., Ametova T.A. Technogenic Indirect signs indicating gas hydrates in the permafrost zone. Earth Cryosphere. Wounds FROM Novosibirsk, 2011, vol. 1, р. 61-67.
2. Instruction on complex gas and gas condensate test-wells. Gazprom 086-2010.
3. Istomin V.A., Kvon V.G. Prevention and elimination of gas hydrates in gas production systems. M.: OOO «IRTS Gazprom», 2004, 506 p.
4. Zotov G.A., Aliev Z.S. Instructions for complex research of gas and gas condensate reservoirs and wells. M.: Nedra, 1980, 300 p.
5. Aliev Z.S., Samuylova L.B., Marakov D.A. Gas-hydrodynamic studies of gas and gas condensate fields and wells. M.: MAKS Press, 2011, 340 p.
6. Barenblatt G.I., Entov V.M., Ryzhik V.M. Theory of unsteady filtration of fluid and gas. M.: Nedra, 1972, 211 p.

Gasdynamic research on Kushevskoe UGS. E.M. Kotlyarov
Geosciences

Authors: Elena M. KOTLYAROVA graduated from Gubkin Russian State University of Oil and Gas in 1988. She is Candidate of Technical Sciences, associate professor of the Dept. of Gas and Condensate Field Development and Operation of Gubkin Russian State University of Oil and Gas (National Research University). She is expert in the field of development and operation of gas and gas-condensate fields and UGS. She is author of 30 publications, including 1 monograph.
E-mail: kotlyarova_gubkin@mail.ru
Zagid S. ALIEV (born 1935) graduated from Azibekov Azerbaijani industrial Institute in 1957. He is Professor of the Dept. of Gas and Condensate Field Development and Operation of Gubkin Russian State University of Oil and Gas (National Research University). He has been head and the executive director of projects of development of oil and gas fields of Russia, Iran, Iraq, Vietnam, Kazakhstan, Algeria, Germany, etc., and also author of normative do-cuments of OAO Gazprom such as instructions, manuals and standards of enterprises. He is author of 365 publications, including 35 monographs and 30 thematic brochures.
E-mail: rgkm@gubkin.ru

Abstract: The technology of gas dynamic studies of horizontal wells of the Kushchevsky UGS and determining the coefficients of the filtration resistance ag and bg is analyzed. Horizontal wells of the Kuschevsky UGS were studied according to the method of conducting research on vertical wells without taking into account the features for horizontal wells. It is determined that the actual operating time of the well in the test modes is not comparable to the required stabilization time, therefore pressures and flow rates are not stabilized. The use of classical technology for research on stationary filtration modes developed for vertical wells is impractical for horizontal wells. The article presents the existing methods for determining the coefficients of filtration resistance

Index UDK: 551.1/.4

Keywords: gas-hydrodynamic studies, horizontal well, stabilization of bottomhole pressure and flow rate, specific gas reserves, underground gas storage, horizontal well production, cluster location, filtration resistance coefficients

Bibliography:
1. Instruction on a complex research of gas and gas-condensate layers and wells. Under the editorship of G.A. Zotov, Z.S. Aliyev. M.: Nedra, 1980.
2. Gritsenko A.I., Aliyev Z.S., etc. A management on well survey. M.: Nedra, 1995.
3. Aliyev Z.S., etc. Theoretical and technological bases of application of horizontal wells for development of gas and gas-condensate fields. M.: LLC Publishing House Nedra, 2014, 450 p.
4. Aliyev Z.S., etc. Practical inexpediency and impossibility of a research of horizontal gas wells on the stationary modes of a filtration. Gas industry, 2014, no. 1.

Application of Aggregate Gas-Oil Block at Compressor Stations
Geosciences

Authors: Semen S. ZATSEPIN graduated from Gubkin Russian State University of Oil and Gas in 2015. He is first rank engineer at the Engineering Center of OOO „Gazprom transgaz Moscow”. He is post-graduate student of Gubkin Russian State University of Oil and Gas (National Research University). He is author of 1 scientific publication.E-mail: cemenz@mail.ru
Sergey M. KUPTSOV graduated from Gubkin Moscow Institude of Petrochemical and Gas Industry in 1973. He is Doctor of Technical Sciences, prof. of the Dept. of Thermodynamics and Heat Engines of Gubkin Russian State University of Oil and Gas (National Research University). He is specialist in thermal processes in the oil and gas industry. He is the author of more then 90 scientific and educational works. E-mail: kuptsov_sm@mail.ru

Abstract: The use of secondary energy resources in the natural gas transportation system is considered. The heat released into the lubrication oil of the gas turbine engine and the centrifugal compressor is lost in the atmosphere, although it can be effectively utilized.
Devices that regenerate the heat flow released into the oil have not been used at compressor stations of main gas pipelines yet.
A variant of generating additional electric power, cooling the oil and heating the fuel gas is proposed.
The main characteristics and operation mode of the aggregate gas-oil block are calculated. This device allows to bring the heat flow from the hot oil to the fuel gas supplied to the combustion chamber of the gas turbine engine.
An assessment of the economic effect of the implementation of this unit is also given.

Index UDK: 622.691.4:536.246

Keywords: compressor station, heat exchange, turboexpander, temperature, gas turbine engine, heat exchanger

Bibliography:
1. Theoretical foundations of heat engineering. Part 1 Thermodynamics in the technological processes of the oil and gas industry: textbook. B.P. Porshakov, A.F. Kalinin, S.M. Kuptsov et al. M.: RSU of Oil and Gas named after I.M. Gubkin, 2005, 148 p. (in Russian).
2. Zatsepin S.S., Kuptsov S. M. The Use оf Turbo-Expander Units On Gas-Distributing Stations. Territorija Neftegaz [Oil and Gas Territory], 2016, no. 12, p. 50-53 (in Russian).
3. Kalinin A.F., Kuptsov S.M., Lopatin A.S. Determination of the thermodynamic characteristics of natural gas for solving energy-technological problems. Scientific and technical collection. Series: Sectoral energetics and energy saving problems, 2004, no. 1, p. 3-9 (in Russian).
4. Kalinin A.F., Kuptsov S.M. Forecasting the temperature and pressure of natural gas at the boundaries of linear sections of gas mains. Scientific and technical collection. Series: Sectoral energy and energy saving problems, 2004, no. 1, p. 10-21 (in Russian).

Method of pressure gages calibration while operation of gas mains and their systems
Geosciences

Authors: Mikhail G. SUKHAREV graduated from Lomonosov Moscow State University, Department of Mechanics & Mathematics in 1959. He is Doctor of Technical Sciences. Professor of the Department of Applied Mathematics and Computer Modeling at Gubkin Russian State University of Oil and Gas (National Research University). His area of expertise includes mathematical modelling, reliability theory, analytics of oil & gas complex. He is author of 20 monographs, 280 scientific publications.
E-mail: mgsukharev@mail.ru
Ksenia O. KOSOVA graduated from Gubkin Russian State University of Oil and Gas in 2014. She is postgraduate student of the Department of Applied Mathematics and Computer Modeling of Gubkin Russian State University of Oil and Gas (National Research University). She is author of 10 scientific publications in the field of modeling of oil and gas industry problems.
E-mail: kseniya_kosova@mail.ru

Abstract: A method of calibration of the measuring equipment designed for the current level of the gas-supply system information service. It uses standard measurements and does not require mounting additional diagnostic equipment. The method makes it possible to estimate systematic errors of measuring instruments during gas-supply systems operation. It is based on the algorithm of gas-supply system parameter identification. The mathematical model includes the identification of the following parameters: systematic errors of measuring instruments and coefficients of the technical state of gas-supply system objects.
Numerical experiments on multiline main gas pipelines demonstrated the method efficiency. Its inclusion in the specialized software will enable to improve the dispatching control of gas supply system.

Index UDK: 622.691.4: 53.089.6

Keywords: gas-supply system, measuring instruments calibration, pressure gages, systematic errors, parameter identification problem

Bibliography:
1. Zhu J., Abur A. Identification of network parameter errors. IEEE Trans. Power Syst., 2006, vol. 21, no. 2, p. 586-592.
2. Kolosok I.N., Korkina E.S., Gurina L.A. Analiz nadezhnosti rezul’tatov otsenivaniya sostoyaniya po dannym PMU pri kiberatakakh na WAMS [Vulnerability analysis of the state estimation problem based on PMU data under cyber attacks on WAMPS]. Metodicheskie voprosy issledovaniya nadezhnosti bol’shikh sistem energetiki. Aktual’nye problemy nadezhnosti sistem energetiki [Methodical research questions of the large-scale power systems reliability. Actual problems of energy systems reliability]. Minsk, 2015, vol. 66, p. 231-237 (in Russian).
3. Sukharev М.G., Samoylov R.V. Analiz i upravlenie statsionarnymi i nestatsionarnymi rezhi-mami transporta gaza [Analysis and control of steady and non-steady flow of gas transport]. Мoscow, 2016, 397 p.
4. STO Gazprom 2-3.5-051-2006. Production engineering standard of gas-main pipeline. Moscow, 2006, 198 p. (in Russian).
5. Sukharev М.G., Kosova K.О. Identifying parameters in gas supply systems models (method and computer experiment). Trudy RGU nefti i gaza imeni I.M. Gubkina [Proceedings of Gubkin Russian State University of Oil and Gas], 2014, no. 3, p. 60-68 (in Russian).
6. Sukharev М.G., Kosova K.О. Raspoznavanie urovnya rabotosposobnosti ob’ektov sistemy gazosnabzheniya po dispetcherskoy informatsii [Identification of operable state operability level of gas supply system object by dispatching information]. Metodicheskie voprosy issledovaniya nadezhnosti bol’shikh sistem energetiki. Aktual’nye problemy nadezhnosti sistem energetiki [Methodical research questions of the large-scale power systems reliability. Actual problems of energy systems reliability]. Syktyvkar, 2016, vol. 67, p. 110-119 (in Russian).