Статьи

Geosciences

Hypothesis of ring platform structures formation in oil and gas bearing provinces as a result of hydrocarbon gases explosions
Geosciences

Authors: Alexander V. BUZILOV graduated from Gubkin Russian State University of Oil and Gas in 2013. Geologist at “Pangeya”. Specialist in the field of geology of the oil and gas fields. He is author of 9 scientific publications. E-mail: huntershole@yandex.ru
Alexander V. POSTNIKOV graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry in 1971. Doctor of Geological and Mineralogical Sciences, Рrofessor at the Department of Lithology of Gubkin Russian State University of Oil and Gas (National Research University). Specialist in the field of ancient craton basement and lithology of the oil and gas fields. He is author of more than 157 scientific publications. E-mail: apostnikov@gubkin.ru
Elena S. IZYUROVA graduated from Gubkin Russian State University of Oil and Gas in 2011. Candidate of Geological and Mineralogical Sciences, associate Professor at the Department of Lithology of Gubkin Russian State University of Oil and Gas (National Research University). Specialist in the field of the oil and gas reservoir and epigenetic studies of the sedimentary rocks. She is author of more than 30 scientific publications. E-mail: ekonovalceva@yandex.ru
Olga V. POSTNIKOVA graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry in 1979. Doctor of Geological and Mineralogical Sciences, Рrofessor at the Department of Lithology of Gubkin Russian State University of Oil and Gas (National Research University). Specialist in the field of lithology of the oil and gas fields. He is author of more than 80 scientific publications.
E-mail: olgapostnikova@yandex.ru
Olga V. SIVALNEVA graduated from Gubkin Russian State University of Oil and Gas in 2011. Candidate of Geological and Mineralogical Sciences, associate Professor at the Department of Lithology of Gubkin Russian State University of Oil and Gas (National Research University). Specialist in the sedimentology, reservoirs of oil and gas. She is author of 26 scientific publications.
E-mail: sivalneva.o@gubkin.ru
Vladimir G. KUTCHEROV graduated from Gubkin Moscow Institute of Petrochemi- cal and Gas Industry in 1972. Doctor of Physics and Mathematics Sciences, Professor at the Department of Physics of Gubkin Russian State University of Oil and Gas (National Research University), docent at the department of Energy Technology, KTH Royal Institute of Technology. Specialist in the field of genesis of hydrocarbons, investigation at extreme thermobaric conditions, global energy transformation. He is author of 108 scientific publications. E-mail: vladimir@flotten.se

Abstract: The article considers hypothesis of ring platform structures formation as a result of deep gases explosions. Evidences of tectonic deformations in the rocks of the East Siberian and Siljan ring structures as well as their genesis are discussed

Index UDK: 551.12:551.2.03

Keywords: impact craters, ring structures, Siljan ring-shaped structures, shock metamorphism, gas explosions

Bibliography:
1. Vaganov V.I., Ivankin P.F., Kropotkin P.N. et al. Explosive ring structures of shields and platforms. M.: Nedra, 1985, 200 p.
2. Graiton L.K. Volcanic heat assumptions. M: Inostrannaya literature, 1949, 167 p.
3. Pikovsky Yu.I., Glasko M.P., Kutcherov V.G. The block structure and the presence of oil and gas in the Siljan impact crater. Russian Geology and Geophysics, 2017, no. 58, p. 199-205.
4. Pljusnin A.V., Gekche M.I. Pervye dannye ob obnaruzhenii impaktnoj struktury na poverhnosti fundamenta juga Sibirskoj platformy (krater Nepskij-1). Fundamental’nye problemy tektoniki i geodinamiki. Materialy LI Tektonicheskogo soveshhanija. M.: GEOS, 2019, tom 2, p. 157-161.
5. Postnikov A.V., Postnikova O.V., Izyurova E.S., Poshibaev V.V., Kuznecov A.S., Izyurov A.D., Kozionov A.E. Jevoljucija processov mineraloobrazovanija v terrigennyh porodah rannego venda Nepsko-Botuobinskoj anteklizy. Litologija i poleznye iskopaemye, 2019, no. 1, p. 31-43.
6. Shteinberg G.S., Persikov E.S. The mechanism of periodic explosions according to the results of laboratory modeling. Proc. USSR Academy of Science, 1987, no. 301(3), p. 677-681.
7. Earth Impact Database. University of New Brunswick. [Elektronnyj resurs]. Rezhim dostupa: http://www.passc.net/EarthImpactDatabase/New%20website_05-2018/Index.html (retrieved 29 Feb- ruary 2020).
8. Fudali R.F., Melson W.G., Ejecta velocities, magma chamber pressure and kinetic energy associated with the 1968 eruption of Arenal volcano//Bull of Volcanology, 1972, no. 35 (2), p. 383-401.
9. Hӧgstrӧm A.E.S., Sturkell E., Ebbestad J.O.R., Lindstrӧm M. & Ormӧ J. Concentric impact structures in the Palaeozoic of Sweden — the Lockne and Siljan craters. GFF, 2010, no. 132, p. 65-70.
10. Holm S., Alwmark C., Alvarez W., Schmitz B. Shock barometry of the Siljan impact structure, Sweden. Meteorit. Planet. Sci., 2011, no. 46, p. 1888-1909.
11. Jourdan F., Reimold W.U. & Deutsch A. Dating terrestrial impact structures. Elements, 2012, no. 8, p. 49-53.
12. Kutcherov V., Krayushkin V., Deep-seated abiogenic origin of petroleum: from geologi- cal assessment to physical theory. Review of Geophysics, 2010, no. 48, RG1001, DOI:10.1029/ 2008RG000270.
13. Rinehart J.S. Distribution of Meteoritic Debris about the Arizona Meteorite Crater. Smithsonian Contribution to Astrophysics, 1958, no. 2, p. 145-160.
14. Self S., Rampino M.R., Newton M.S., Wolff J.A. Volcanological study of the great Tambora eruption of 1815//Geology, 1984, no. 12(11), p. 659-663. DOI: 10.1130/0091-7613(1984)12 <659:VSOTGT>2.0.CO;2

Modeling maturity of organic matter in source rocks of Silurian oil and gas source strata of southern Urals based on statistical processing of Rock-eval results
Geosciences

Authors: Alexander V. BONDAREV graduated from Gubkin Russian State University of Oil and Gas in 2011. He is Candidate of Geological and Mineralogical Sciences, Assistant Professor of the Department 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 50 scientific publications. E-mail: jcomtess@yandex.ru
Andrey V. BARSHIN graduated from Lomonosov Moscow State University in 2013, with a bachelor’s degree and Gubkin Russian State University of Oil and Gas (National Research University) in 2015, with a master’s degree. He is Assistant lecturer at the Department of Theoretical Foundations of Oil and Gas Exploration and Prospecting of Gubkin Russian State University of Oil and Gas (National Research University). He is author of 4 scientific publications. E-mail: barshinsp@gmail.com
Kristina I. DANTSOVA graduated from Gubkin Russian State University of Oil and Gas (National Research University) in 2017. She is Assistant Lecturer at the Department of Theoretical Foundations of Oil and Gas Exploration and Prospecting of Gubkin Russian State University of Oil and Gas (National Research University). She is author of 12 scientific publications.
E-mail: kristinadantsova@yandex.ru
Liana I. MINLIGALIEVA graduated from Gubkin Russian State University of Oil and Gas (National Research University) in 2016. Assistant at the Department of Theoretical Foundations of Oil and Gas Exploration and Exploration of Gubkin Russian State University of Oil and Gas (National Research University). The author of 20 scientific publications. E-mail: liana_abril@mail.ru

Abstract: The article is dedicated to the statistical study of the organic matter of Silurian rocks, as well as modeling the generation of hydrocarbons in these source rocks of the southern Urals. This will make it possible to contribute to the whole picture of the formation of oil and gas accumulations, and also assess the impact of the candidate sources of hydrocarbons in the region. It will allow developing and expanding capabilities in solving urgent problems of localization and spatial distribution of hydrocarbons in traps, as well as revising the regional assessment of the region’s resources

Index UDK: 550.8.013

Keywords: Pre-Ural marginal deflection, geochemistry of organic matter, basin modeling, statistics, Rock-eval, Silurian system

Bibliography:
1. Monakova A.S. Usloviya formirovaniya, razmeshcheniya i perspektivy poiskov skoplenij uglevodorodov v paleozojskom komplekse yuga Predurаl’skogo progiba i zony peredovyh skladov yugo-zapadnogo Urala. Diss. kand. [Conditions for the formation, placement and prospects of hydrocazbon accumulations in the Paleozoic omplex of the sauth of the Ural trough and the zone of advanced warehouses of the southwestern Urals. Doct. Diss.]. Moscow, 2019, 22 p.
2. Minligaliyeva L.I. Prognoz neftegazonosnosti yuzhnoy chasti Predural’skiy progib i zony peredovykh skladok Urala na osnove geomekhanicheskogo i basseynovogo modelirovaniya [Forecast of oil and gas potential of the southern part of the Preduralsk downwarp and the zone Advanced warehouses of the Urals based on geomechanical and basin modeling]. XI Mezhdunarodnyye nauchno-prakticheskiye konferentsii studentov, aspirantov i molodykh uchenykh [Geology in the developing world, a collection of scientific papers on the materials of the XI International Scientific and Practical Conference of Students, Postgraduates and Young Scientists]. T. 3. Permskiy gosudarstvennyy natsio-nal’nyy issledovatel’skiy universitet, 2018, p. 145-148.
3. Minligalieva L.I., Kerimov V.Yu. Usloviya formirovaniya lovushek i zalezhey uglevodorodov v podnadvigovykh zonakh Predural’ya [Conditions for the formation of traps and hydrocarbon deposits in the subthrust zones of the Urals]. Nedropol’zovaniye XXI vek [Subsoil use XXI century], 2019, no. 4 (80), p. 34-45.
4. Minligalieva L.I., Kerimov V.Yu., Osipov A.V., Bondarev A.V., Monakova A.S. Geomekha-nicheskoye modelirovaniye vzbroso-nadvigovykh struktur Predural’skogo progiba [Geomechanical modeling of thrust-thrust structures of the Ural trough]. Sbornik “Novyye idei v naukakh o Zemle”. Materialy XIV Mezhdunarodnoy nauchno-prakticheskoy konferentsiii [In the collection: New ideas in Earth sciences Materials of the XIV International scientific-practical conference], 2019, p. 264-267.
5. Minligalieva L.I., Monakova A.S. Geomekhanicheskoye modelirovaniye zony sochleneniya Predural’skogo krayevogo progiba i peredovykh skladok Urala [Geomechanical modeling of the articulation zone of the Ural marginal deflection and advanced folds of the Urals] Sbornik naushnykh trudov “Bakirovskiye chteniya” [In the collection “Bakirov readings collection of scientific papers”], 2018, p. 151-156.
6. Osipov A.V., Bondarev A.V., Mustaev R.N., Monakova A.S., Zakharchenko M.V., Minliga-lieva L.I. Rezul’taty geologo-s’yemochnykh rabot na vostochnom bortu yuzhnoy chasti Predural’skogo progiba [Results of geological survey work on the eastern side of the southern part of the Ural trough]. Izvestiya vysshikh uchebnykh zavedeniy. Geologiya i razvedka [News of higher educational institu-tions. Geology and exploration], 2018, no. 3, p. 42-50.
7. Osipov A.V., Vasilenko E.I., Minligalieva L.I., Kerimov V.Yu., Ermolkin V.I. Uglevodorod-nyye sistemy glubokopogruzhennykh otlozheniy yugo-vostochnoy chasti Volgo-Ural’skoy neftegazo-nosnoy provintsii [Hydrocarbon systems of deeply submerged sediments of the southeastern part of the Volga-Ural oil and gas province]. Nedropol’zovaniye XXI vek [Subsoil use XXI century], 2018, no. 6 (76), p. 40-49.
8. Osipov A.V., Monakova A.S., Minligaliyeva L.I. Generatsionno-akkumulyatsionnyye uglevo-dorodnyye sistemy yuzhnoy chasti Predural’skogo krayevogo progiba [Generation-accumulation hyd-rocarbon systems of the southern part of the Pre-Ural marginal deflection]. Sbornik nauchnykh statey “Novyye napravleniya neftegazovoy geologii i geokhimii. Razvitiye geologorazvedochnykh rabot” [New directions of oil and gas geology and geochemistry. Development of geological exploration collection of scientific articles], 2017, p. 285-293.

Geochemical study of oil-bearing deposits of the Northern side of the Caspian basin
Geosciences

Authors: Kurmangazy O. ISKAZIEV graduated from petroleum faculty of V.I. Lenin Kazakh Polytechnic Institute in 1993. He is Candidate of Geological and Mineralogical Sciences, Associa-te Professor, senior lecturer at the Department of Geology of Petroleum Systems of Gubkin Russian State University of Oil and Gas (National Research University). He is specialist in the field of oil and gas fields exploration. He is author of 1 monograph and more than 15 scientific publications in Russian and foreign issues.
E-mail: k.iskaziyev@kmg.kz

Abstract: The article presents the results of the studies of the rock samples geochemical parameters from the wells drilled within the northern side of the Caspian depression and the zone of its juncture with the southern part of the Buzuluk depression. Potential oil and gas source strata were identified and characterized within the study area in the stratigraphic interval of the Middle Devonian (Klintsovski-Mosolovski horizon), Lower Carboniferous (Kosvinski-Radaevski and Bobrikovski horizons) and Middle Carboniferous (Vereyski horizon) systems. The type of organic matter and the degree of maturity of the deposits are established for each stratum. The results can be used in further studies of the hydrocarbon potential of the northern side zone of the Caspian basin and adjacent territories

Index UDK: 550.4+553.98 (470.98)

Keywords: Keywords: source rocks, geochemical parameters, organic carbon, biomarkers, northern side of the Caspian basin, Krevelen diagram

Bibliography:
1. Kuandykov B.M., Matloshinsky N.G., Sentgiorgi K. et al. Oil and gas potential of the Paleo- zoic shelf of Northern Margin of Precaspian depression. Almaty, 2011, 280 p.
2. Zhemchugova V.A., Makarova E.Yu., Naumchev Yu.V., Makarov N.D., Pankov V.V. Carbonate reservoirs of subsalt deposits of the Caspian syneclise. Geo-resources, 2017. Special issue. Part 2, p. 194-207.
3. Abilkhasimov Kh.B. Reservoirs formation features of Paleozoic deposits of the Precaspian depression and an assessment of their oil and gas potential. Publishing House of the Academy of Na- tural Sciences, 2016, 244 p.
4. Peters E.K. Guidelines for evaluating petroleum source rock using programmed pyrolysis. AAPG Bulletin, 1986, vol. 80, no. 3, p. 318-329.
5. Peters E.K., Cassa M.R. Applied source rock geochemistry. AAPG Memoir 60: The petroleum system — from source to trap, 1994, p. 93-120.

Prediction of thermodynamic properties and phase behavior of reservoir fluids for the design of oil and gas fields
Geosciences

Authors: Anatoly A. GERASIMOV graduated from the Grozny’s oil Institute named after academician M.D. Millionshikov in 1972, doctor of technical sciences, Professor of the Department of the “Heat and gas supply and ventilation” of Kaliningrad State Technical University. The author of more than 100 scientific works in the field of thermophysical properties of substances, including three monographs. E-mail: aager_kstu@mail.ru
Boris A. GRIGORIEV graduated from the Grozny’s oil Institute named after academician M.D. Millionshikov in 1963, the member of the Russian Academy of Sciences, doctor of technical sciences, Professor, head of the Department of the “Study of oil and gas reservoir systems” of Gubkin Russian State University of Oil and Gas (National Research Univer- sity). The author of more than 300 scientific works in the field of thermophysical properties of substances, the author of a textbook on heat and mass transfer for high schools and several monographs. E-mail: gba_41@mail.ru
Evgeny B. GRIGORIEV graduated from the Grozny’s oil Institute named after acade- mician M.D. Millionshikov in 1990. Assistant Professor, doctor of technical sciences. Leading Researcher of the Department of the “Study of oil and gas reservoir systems” of Gub- kin Russian State University of Oil and Gas (National Research University). Specialist in the field of thermophysical properties of working fluids and coolants. The author of more than 100 scientific works in the field of thermophysical properties of substances, including three monographs. E-mail: egb_8691@mail.ru
Igor S. ALEXANDROV graduated from the Kaliningrad State Technical University in 2004, candidate of technical sciences, Assistant Professor, head of the Department of the “Heat and gas supply and ventilation” of Kaliningrad State Technical University. The author of more than 80 scientific works in the field of thermophysical properties of substances. E-mail: alexandrov_kgrd@mail.ru

Abstract: This article proposes methods for calculating the thermodynamic properties and phase equilibria of reservoir fluids based on both empirical multi-constant equations of state and theoretically based equations obtained in the framework of the statistical theory of associated fluid (SAFT). The article also proposes an alternative technique based on the author’s generalized PC-SAFT equation of state. The article presents the results of comparative calculations of the thermodynamic properties of model hydrocarbon mixtures, as well as real reservoir systems based on the proposed methods. The most accurate calculation of thermodynamic properties in the single-phase region was shown by the multiconstant model. In particular, the accuracy of density calculation is 3-4 times higher than according to cubic equations of state. When testing this model regarding the calculation of phase equilibria, limitations were established that recommend its use for light gas condensates, in which the molar mass of the residue does not exceed 140 g/mol and the relative density of the residue does not exceed 0,730. For reservoir fluids that do not satisfy the condition described above, it is proposed to calculate phase equilibria using a model based on the author’s PC-SAFT equation of state that can be used to calculate phase equilibria and near the freezing point of the mixture, where cubic and multi-constant equations can lead to nonphysical phase diagram

Index UDK: 622.276

Keywords: density, heat capacity, saturation pressure, equation of state, reservoir fluid, oil, gas condensate

Bibliography:
1. Span R. Multiparameter Equation of State: An Accurate Source of Thermodynamic Property Data. Berlin: Springer, 2000, 367 p.
2. Kunz O., Klimeck R., Wagner W., Jaeschke M. The Gerg-2004 Wide-Range Equation of State for Natural Gases and Other Mixtures. Dusseldorf, 2007, 535 p.
3. Alexandrov I., Gerasimov A., Grigor’ev B. Generalized Fundamental Equation of State for Normal Alkanes (C5 — C50). Int. J. Thermophys, 2013, vol. 34, p. 1865-1905.
4. Grigoriev B., Alexandrov I., Gerasimov A. Generalized equation of state for the cyclic hydrocarbons over a temperature range from the triple point to 700 K with pressures up to 100 MPa. Fluid Phase Equilibria, 2016, vol. 418, p. 15-36.
5. Ke-Le Yan, Liu Huang, Sun Chang-Yu et. al. Measurement and calculation of gas compressibility factor condensate gas and natural gas under pressure up to 116 MPa. J. Chem. Thermodynamics, 2013, vol. 63, p. 38-43.
6. Huang Liu, Sun Chang-Yu, Yan Ke-Le, et. al. Phase behavior and compressibility factor of two China gas condensate samples at pressures up to 95 MPa//Fluid Phase Equilibria, 2013, vol. 337, p. 363-369.
7. Shariati A., Peters C.J., Moshfeghian M. Bubble-point pressures of some selected methane + synthetic C6+ mixtures. J. Chem. Eng. Data, 1998, vol. 43, p. 280-282.
8. Aleksandrov I.S., Grigor’ev B.A. Modelirovanie termodinamicheskih svojstv i fazovogo pove-deniya uglevodorodov i slozhnyh uglevodorodnyh smesej na osnove novogo PC-SAFT uravneniya sos-toyaniya. Nauchno-tekhnicheskij sbornik. Vesti gazovoj nauki. Sovremennye podhody i perspektivnye tekhnologii v proektah osvoeniya neftegazovyh mestorozhdenij rossijskogo shel’fa. M.: “Gazprom VNIIGAZ”, 2018, no. 4 (36), p. 237-248.
9. Otchet o NIR “Matematicheskoe modelirovanie fazovogo povedeniya plastovyh uglevodo-rodnyh smesej v kriticheskoj oblasti. opredelenie plotnostej sosushchestvuyushchih faz”. M.: RGU nefti i gaza (NIU) imeni I.M. Gubkina, 2018, 50 p.

Mean Residual Life (MRL) of Gnedenko-Weibull Distribution. Estimates of Residual Life Time of Submersible Pump Equipment
Geosciences

Authors: Alexandr V. SKORIKOV graduated from Rostov State University in 1971. He is Candidate of Physical and Mathematical Sciences, Аssistant professor at the Department of Higher Mathematics of Gubkin Russian State University of Oil and Gas (National Research University). His scientific interests are fractional derivatives and integrals, operators of potential type and functional spaces, theory of reliability. He has published over 40 works including 5 teaching aids. E-mail: skorikov.a@gubkin.ru
Alexey V. DENGAEV graduated with Master’s degree from Gubkin Russian State University of Oil and Gas specializing in Well operation in abnormal conditions in 2001. He is Candidate of Technical Sciences, Associate Professor of the Department of Development and Ope-ration of Oil Fields of Gubkin Russian State University of Oil and Gas (National Research University). He specializes in oil field exploitation. He is the author of more than 90 publications. E-mail: dengaev.a@gubkin.ru
Vladimir N. RUSEV graduated from M.V. Lomonosov Moscow State University in the field of probability theory and mathematical statistics in 1997. He is Candidate of Technical Sciences, senior lecturer of the Department of Higher Mathematics of Gubkin Russian State University of Oil and Gas (National Research University). The focus of his academic interests is information theory, applied mathematical statistics and theory of reliability. He is author of more than 25 scientific publications including 5 teaching aids.
E-mail: rusev.v@gubkin.ru

Abstract: The working life model (behavior model) of the object — the Gnedenko-Weibull distribution law is postulated. As a measure of reliability the article uses the mean residual time (MRL). For the Gnedenko-Weibull model, new representa-tions of the mean residual are obtained. The considered example of processing real operational data of pumps failures allows predicting the residual operating time of submersible equipment at the operational stage and can be used to assess the resource characteristics of the equipment

Index UDK: 622.276.53:519.873

Keywords: reliability indicators, distribution of Gnedenko-Weibull, mean residual life

Bibliography:
1. Kalu-Ulu T.C., Andrawus J.A. Modelling System Failures of Electric Submersible Pumps in Sand//SPE—151011—MS, 2011, р. 1-6.
2. Pastre L.F., Fastovets A. The Evolution of ESP Technology in the North Sea: A Reliability Study//SPE—187735—MS, 2017, р. 1-35.
3. Al-Jazzaf A.M., Pandit A., Al-Maqsseed N. Interpretation of ESP Reliability using Weibull Analysis and Dynamic Run//SPE—194393—MS, 2019, р. 1-20.
4. Lastra R., Aramco S. The Quest for the Ultrareliable ESP//SPE—184169—MS, 2016, р. 1-17.
5. Slepchenko S. Matematica prognoza. Neftegazovaya vertical, 2006, no. 12 (6), р. 48-51.
6. Slepchenko S.С. Otcenka nadezhnosti ESP i ikh otdelnykh uzlov po rezultatam promyslovoy ekspluatatsii. Diss. Kand. Tekhn. Nauk. М., 2011, 146 p.
7. Chernikov V.S. K voprosu о nadezhnosti ustanovok electrotsentrobezhnogo nasosa. Territoriya neftegaz, 2012, no. 3, p. 68-73.
8. Capderou C., DiLorenzo N. A Fresh Look at Completion Reliability Supports Sand Control. SPE-159541, 2012, p. 1-16.
9. Cox D. Renewal Theory. London: Methuen&Co, 1962.
10. Chin-Die Lai, Min Xie. Stochastic Ageing and Dependence Reliability. New York: Sprin- ger-Verlag, 2006, 418 p.
11. Rusev V., Skorikov A. The mean residual life (MRL) of the Weibull-Gnedenko distribution. Seventh International Scientific Conference “Modern Methods, Problems and Applications of Operator Theory and Harmonic Analysis VII” Articles and reports — Rostov-on-Don, 2017, p. 141-142. URL: www.otha.sfedu.ru/conf2017.
12. Gradshteyn I.S., Ryzhik I.M. Tables of Integrals, Series, and Products. 7th edn, New York: Academic Press, 2007, 1200 p.
13. Nassar M.M., Eissa F.H. On the Exponentiated Weibull Distrbution. Communications in Statistics — Theory and Methods, 2003, vol. 32, no. 7, p. 1317-1336.
14. Sokolov S.V., Antonov А.V., Chepurko V.A. Otsenka ostatochnogo resursa nevostanavlivayemykh elementov elektrooborudovaniya SUZ reaktora RBMK-1000 1-gо bloka Smolenskoy AES. Izvestiya vysshikh uchebnykh zavedeniy. Yadernaya energetika, 2007, no. 3-1, p. 38-43.

Investigation of influence of soil properties on performance of thermomechanical drilling tools for construction and operation of oil and gas pipelines
Geosciences

Authors: Boris L. ZHITOMIRSKIY graduated from Kamenetz-Podolsk Higher Military Enginee- ring Command School named after Marshal of Engineering Troops Kharchenko and Kuibyshev Military Engineering Order of Lenin Red Banner Academy. He is Candidate of Technical Sciences, General Director of AO “Gazprom Orgenergogaz”. He is Professor at the Department of Termodynamics and Heat Engines of Gubkin Russian State University of Oil and Gas (National Research University). He is author of more than 50 scientific papers in the field of power engineering, diagnostics, energy saving and gas transport.
E-mail: zhyitomirsky@oeg.gazprom.ru

Abstract: Ensuring reliable and safe operation of gas pipelines at Gazprom’s facilities is a priority. The results of studies of the impact of soil strength characteristics on the performance of thermomechanical drilling tools for use in the construction and operation of oil and gas pipelines in various natural and climatic conditions are considered. Based on the research results, practical recommendations for improving the technology of soil development with a drilling thermomechanical tool are given

Index UDK: 620.19

Keywords: drilling, moisture content, gas pipeline, deformation, stress (stretching), soil shrinkage

Bibliography:
1. Zhytomyrskiy B.L. Study of thermodynamics of heat and mass transfer of the medium in the soil in the thermomechanical method of drilling holes on main gas pipelines. Equipment and technologies for the oil and gas industry. Moscow: Russian state University of oil and gas (NIU) imeni I.M. Gubkina, 2019, no. 2 (110), p. 38-43.
2. Zhytomyrskiy B.L., Krokhmal S.V. Mathematical model of working processes of thermos- mechanical drilling tools. Scientific and technical collection VIU. Moscow, 2005, no. 32, part II, p. 80-84.

Gubkin university: scientific and technical developments in the field of technical diagnostics of fuel and energy complex equipment and pipelines
Geosciences

Authors: Alexey P. ZAV’YALOV graduated from Gubkin Russian state University of oil and gas in 2002. Candidate of technical Sciences, Аssociate Professor at the Department of oil and gas processing equipment Gubkin Russian state University of oil and gas (National Research University). Specialist in the field of reliability and technical diagnostics of pipeline systems. Author of about 70 scientific publications. E-mail: zavyalovap@yandex.ru

Abstract: The article discusses the history and current state of research in the field of technical diagnostics of equipment and pipelines of fuel and energy facilities, performed at the Gubkin Russian state University of oil and gas (NIU) from the 1960 to the present. The main scientific and practical results of the performed research are described, and the perspective directions of research performed at the university at the present time are considered. A multi-level system of personnel training in the field of technical diagnostics of gas transport systems is considered separately

Index UDK: 620.19

Keywords: Keywords: reliability, efficiency, equipment, pipeline, repair, technical diagnostics, diagnostic service system, personnel support

Bibliography:
1. Oficial’nyj sajt AO “Transneft’-Diaskan” [Elektronnyj resurs]. Rezhim dostupa: https://dias-can.transneft.ru/about/: (data obrashche-niya: 11.03.2020 g.).
2. Zav’yalov A.P. Analiz sovremennyh tendencij razvitiya sistem remontno-tekhnicheskogo i diagnosticheskogo obsluzhivaniya neftegazovyh proizvodstv. Oborudovanie i tekhnologii dlya neftegazovogo kompleksa, 2018, no. 10, p. 67-72.
3. Lopatin A.S. Nauchnye osnovy sozdaniya sistemy diagnosticheskogo obsluzhivaniya gazotransportnogo oborudovaniya kompressornyh stancij: diss. dokt. tekhn. nauk. M: RGU nefti i gaza (NIU) imeni I.M. Gubkina, 1998, 308 p.
4. Celevaya kompleksnaya programma po sozdaniyu otraslevoj sistemy diagnosticheskogo obsluzhivaniya gazotransportnogo oborudovaniya kompressornyh stancij RAO Gazprom (do 2000g.) (v trekh chastyah). M.: IRC Gazprom, 1997.
5. Aksyutin O.E., Lopatin A.S., Vasil’ev G.G. Razvitie gazotransportnoj sistemy i podgotovka inzhenernyh kadrov. Gazovaya promyshlennost’, 2010, no. 13, p. 13-16.
6. Angalev A.M., Antipov B.N., Zarickij S.P., Lopatin A.S. Diagnosticheskoe obsluzhivanie magistral’nyh gazoprovodov. M.: MAKS Press, 2009, 112 p.
7. Zarickij S.P., Lopatin A.S. Diagnostika gazoperekachivayushchih agregatov. CHast’ 1. M.: Neft’ i gaz, 2003, 178 p.
8. Metody i sredstva diagnostiki linejnoj chasti magistral’nyh gazoprovodov: ucheb. posobie. Pod red. A.S. Lopatina. M.: Izd. Centr RGU nefti i gaza imeni I.M. Gubkina, 2012, 185 p.
9. Angalev A.M., Lopatin A.S., Egorov S.I., Lyapichev D.M. Metody i sredstva nerazrushayushchego kontrolya oborudovaniya i truboprovodov kompressornyh stancij. M.: RGU nefti i gaza imeni I.M. Gubkina, 2015, 92 p.
10. Lopatin A.S., Egorov S.I., Zav’yalov A.P., Gusejnov K.B. Ocenka parametrov nadezhnosti magistral’nyh gazoprovodov, ispytyvayushchih vozdejstvie neproektnyh nagruzok. M.: RGU nefti i gaza imeni I.M. Gubkina, 2015, 95 p.
11. Porshakov B.P., Lopatin A.S., Kalinin A.F. i dr. Energosberegayushchie tekhnologii pri magistral’nom transporte prirodnogo gaza. M.: Izd. centr RGU nefti i gaza imeni I.M. Gubkina, 2014, 417 p.
12. Lyapichev D.M., ZHitomirskij B.L. Sovremennye podhody k organizacii monitoringa napryazhenno-deformirovannogo sostoyaniya tekhnologicheskih truboprovodov kompressornyh stancij. Gazovaya promyshlennost’, 2016, no. 11 (745), p. 46-53.
13. Borodin V.I., Shepelev R.E., Lyapichev D.M., Lopatin A.S., Nikulina D.P. Primenenie risk-orientirovannogo podhoda k ocenke neobhodimosti i celesoobraznosti ustanovki sistem monitoringa tekhnicheskogo sostoyaniya gazoprovodov. Gazovaya promyshlennost’, 2018, no. 1 (763), p. 60-63.
14. Zav’yalov A.P. Sovershenstvovanie metodov ocenki tekhnicheskogo sostoyaniya tekhnologicheskih truboprovodov po rezul’tatam diagnostirovaniya: diss. kand. tekhn. nauk. M: RGU nefti i gaza (NIU) imeni I.M. Gubkina, 2006, 101 p.
15. ZHitomirskij B.L., Lyapichev D.M. Perspektivnye napravleniya razvitiya sistemy diagnosticheskogo obsluzhivaniya gazotransportnogo oborudovaniya kompressornyh stancij. Oborudovanie i tekhnologii dlya neftegazovogo kompleksa, 2020, no. 1 (115), p. 56-58.
16. Lyapichev D.M., Stepanchuk I.S., Martynov A.I., Zav’yalov A.P. Sovershenstvovanie sistemy diagnosticheskogo obsluzhivaniya ob’ektov gazovoj promyshlennosti Rossii. Oborudovanie i tekhnologii dlya neftegazovogo kompleksa, 2019, no. 2 (110), p. 14-18.
17. Zav’yalov A.P. Razrabotka nauchno-metodicheskih osnov obespecheniya nadezhnosti ekspluatacii neftegazovyh ob’ektov v usloviyah arkticheskogo shel’fa. Energosberegayushchie techno-logii i tekhnicheskaya diagnostika: sbornik. M.: RGU nefti i gaza (NIU) imeni I.M. Gubkina, p. 90-99.
18. Gol’dzon I.A., Zav’yalov A.P. Nadezhnost’ i ekologicheskaya bezopasnost’ neftegazovyh ob’ektov v slozhnyh inzhenerno-geologicheskih usloviyah. Zashchita okruzhayushchej sredy v neftegazovom komplekse, 2019, no. 1 (286), p. 7-9.

Study of the effect of the actual bend radius of a conduit-conductor in the justification of feasibility of reconstruction of trunk oil and gas pipelines by the method of “pipe in pipe”
Geosciences

Authors: Alexey S. LOPATIN graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry in 1979. He is Doctor of Technical Sciences, Professor, Head at the Department of Termodynamics and Heat Engines of Gubkin Russian State University of Oil and Gas (National Research University). Аuthor of more than 350 papers in the field of diagnostics, energy saving in the transport of gas and energy efficiency. E-mail: Lopatin.a@gubkin.ru
Ruslan V. AGINEY graduated from Ukhta Industrial Institute in 1997. He is a Professor, Doctor of Technical Sciences and Rector of Federal State Budgetary Educational Institution of Higher Education “Ukhta State Technical University”. R. Aginei is a specialist in the field of corrosion protection research, repair, strength and resource of oil and gas pipelines, as well as in the design of underground gas storages. Author of more than 200 scientific papers, monographs, textbooks, co-author of more than 50 patents for inventions in the Russian Fe-deration. E-mail: rector@ugtu.net
Viktor A. SEREDENOKgraduated from the Ukhta Industrial Institute in 1993 with a degree in Machinery and Equipment for Oil and Gas Fields. Specialist in the field of operation of gas main pipeline transport systems, repair and maintenance of equipment and pipelines. The Head at Department of JSC “Gazprom”. Author of 20 scientific papers E-mail: V.Seredenok@adm.gazprom.ru

Abstract: The article presents the results of the study of the influence of the actual bending radius of the pipeline conductor when justifying the technical possibility of performing reconstruction of main oil and gas pipelines on complicated sections of the route using the “pipe in a pipe” method. The results of calculating the radius of curvature of the pipeline-conductor section based on the results of measuring the spatial position of the route crossing the water barrier are presented. The minimum step between the measurement points of the spatial position of the Belousovo-Leningrad section of the pipeline with a diameter of 720 mm is set to estimate the radius of curvature when concluding that the “pipe-in-pipe” method can be reconstructed. Expressions are proposed for determining the effort of dragging the working pipeline into the conductor pipeline and the stresses that occur when dragging the working lash of the pipeline on straight and curved sections. It was found that the combined forces of dragging the internal pipeline for the main and backup threads create stresses that do not exceed the yield strength of steel, which indicates the technical possibility of dragging the projected gas pipeline at underwater crossings

Index UDK: 624.1:624.9:53.043

Keywords: pipeline, reconstruction, “pipe in pipe” method, trenchless method; diagnostic examination, dragging, bending radius, spatial position

Bibliography:
1. Hausner M., Dixon M. Optimized Design of Pipe-in-Pipe Systems. SPE Production & Facilities, 2002, vol. 19 (1).
2. Kagoura T., Ishii K., Abe S., Inoue T., Hayashi T., Sakamoto T., Mochizuki T., Yamada T. Development of a Flexible Pipe for Pipe-in-Pipe Technology. Ocean Engineering, 2003, 12 p.
3. Mao S., Kamal M., Qiao W., Dong G., Duffy B. Reliability Analysis and Design for Pipe-in-Pipe Pipelines With Centralizers. ASME 2015 34th International Cenference on Ocean, Offshore and Arctic Engineering, 2015, 8 p.
4. Müller H., Jarosch G. An innovative rehabilitation method the pipe-in-pipe system. J. Korean Soc. for Nondestructive Testing, 2010, vol. 76, p. 10-13.
5. Rovenko D.S. Bestranshejnye metody rekonstrukcii stal’nyh gazoprovodov. Nauchnyj zhurnal. Inzhenernye sistemy i sooruzheniya, 2015, no. 2 (19), p. 30-32.
6. Sapsaj A.K. i dr. Vybor metoda stroitel’stva podvodnyh perekhodov magistral’nyh truboprovodov. Neftyanoe hozyajstvo, 2017, no. 11, p. 143-148.
7. Sarbaev R.R. i dr. Effektivnost’ zashchitnyh konstrukcij tipa “truba v trube”. Problemy sbora, podgotovki i transporta nefti i nefteproduktov, 2012, no. 2 (88), p. 31-37.
8. SP 36.13330.2012. Magistral’nye truboprovody. Vved. 01.07.2013. M.: Izd-vo standartov, 2013, 122 p.
9. Islamov R.R. Sovershenstvovanie sistemy monitoringa tekhnicheskogo sostoyaniya protyazhennyh uchastkov magistral’nyh neftegazoprovodov primeneniem volokonno-opticheskih sensorov deformacii: Diss. kand. tekhn. nauk. Uhta, 2018, 168 p.
10. SP 86.13330.2014. Magistral’nye truboprovody. Vved. 01.06.2014. M.: Izd-vo standartov, 2014, 182 p.

Authors: Andrey G. BUKLAKOV graduated from Gubkin Russian state University of Oil and Gas in 2011, specializing in technological machines and equipment. He is Candidate of Technical Sciences, Associate Professor at the of Department of Tribology and Technology of Repair of Oil and Gas Equipment of Gubkin Russian State University of Oil and Gas (National Research University). He is a specialist in the field of protective coatings and mechano-thermal formation. He is author and co-author of 25 articles.
E-mail: Dron-32@mail.ru
Nikita S. NESTERENKO graduated from Gubkin Russian State University of Oil and Gas in 2014 with a degree in technological machines and equipment. He is leading engineer at the Department of Tribology and Technology of Repair of Oil and Gas Equipment of Gubkin Russian State University of Oil and Gas (National Research University). He is author and co-author of 10 articles.
E-mail: nesterenko.n@gubkin.ru
Oksana Y. ELAGINA graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry in 1989. She is Doctor of Technical Sciences, Professor, Head at the Department of Tribology and Technology of Repair of Oil and Gas Equipment of Gubkin Russian State University of Oil and Gas (National Research University). She is specialist in the fields of welding technology and equipment, technology for creating wear-resistant coatings, materials science, tribology. She is author of over 100 scientific papers.
E-mail: elagina@mail.ru

Abstract: Operational properties of multipurpose lubricants (MFS) which are widely repre-sented on the territory of the Russian Federation are studied. The penetrating ability, lubricating property and anti-corrosion ability of MFS are researched. A method for assessing the effectiveness of the composition of MFS in the processes of rust conversion is developed and tested. A wide range of MFS properties is shown depending on the problem to be solved

Index UDK: 622.276.031:532.11 (571.56)

Keywords: multipurpose lubricants, penetrating ability, threaded coupling, lubrica-ting properties, breakaway torque, conversion of rust, performance evaluation

Bibliography:
1. Tomashov N.D. Theory of corrosion and protection of metals. Moscow: Publishing house of the USSR Academy of Sciences, 1959, 591 р.
2. GOST 9.054-75. Unified system of protection against corrosion and aging. Conservation oils, lubricants, and inhibited film-forming petroleum compounds. Methods of accelerated tests of protective ability. Moscow, Standartinform, 2006.
3. GOST 380-2005 Carbon Steel of ordinary quality. Stamps. Moscow, Standartinform, 2009.
4. Anticorrosive coatings. Russian gas encyclopedia, BRE, 2004, 20 p.
5. GOST 9.407-84. Unified system of protection against corrosion and aging. Paint and varnish coatings. Method for evaluating appearance. Moscow, Standartinform, 2006.

Characterization and oil-oil correlation for the Mil Qasim and Sarqala oilfields based on bio-markers analysis, Kurdistan, Northern Iraq
Geosciences

Authors: Sergey F. KHAFIZOV graduated from Gubkin Russian State University of Oil and Gas in 1987. He is Doctor of Geological and Mineralogical Sciences, professor, member of the Russian Academy of Natural Sciences and AAPG, head of the Geology of Hydrocar- bon Systems Department at Gubkin Russian State University of Oil and Gas (National Research University). He is specialist in the field of oil and gas fields exploration. He is author of 4 monographs and more than 60 scientific publications in Russian and international perio- dicals. E-mail: khafizov@gubkin.ru
Rebaz Abdalaziz HAMA AMIN graduated from University of Sulaimani in 2012 and Gubkin Russian State University of Oil and Gas (National Research University) in 2016. He is post-graduate student at the Department of Geology of Hydrocarbon Systems at Gubkin Russian State University of Oil and Gas (National Research University). His scientific interests are related with geochemical studies of oils and source rock samples and basin modeling. He is author of 2 scientific publications. E-mail: Rebaz_1989sa@yahoo.com
Natalia N. KOSENKOVA graduated from Lomonosov Moscow State University in 1980. She is Candidate of Geological and Mineralogical Sciences, associate professor of the Department of Geology of Hydrocarbon Systems at Gubkin Russian State University of Oil and Gas (National Research University). She is specialist in the field of oil and gas fields exploration. She is author of 4 monographs and more than 20 scientific publications in Russian and international periodicals. E-mail: N.N.Kosenkova@gubkin.ru
Marina I. TRUNOVA graduated from Gubkin Russian State University of Oil and Gas in 1982. She is Candidate of Geological and Mineralogical Sciences, associate professor of the Department of Geology of Hydrocarbon Systems of Gubkin Russian State University of Oil and Gas (National Research University). She is specialist in the field of oil and gas fields exploration. She is author of more than 20 scientific publications. E-mail: mtrunova@gmail.com

Abstract: Gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS) methods are used to analyze crude oils obtained from Mil Qasim (MQ-1) and Sarqala (S-1) oilfields of south-eastern part of Iraqi Kurdistan using different biomarkers coefficients. Biomarkers characterization are used to provide information on the source of the organic matter, depositional environment, degree of maturity, age determination of the crude oils and their correlation between each other. The used data include normal alkanes and acyclic isoprenoids distributions, terpans, hopanes, steranes and diasternes aliphatic biomarkers, the distribution of aromatic biomarkers naphthalenes, dibenzothiophene, phenanthrene, methyldibenzothiophenes and stable carbon isotope. The oil samples from Mil Qasim and Sarqala oilfields are characterized by a low Pr/Ph ratio (< 1,0), a relatively low oleanane ratio, abundance of moderate C27 regular steranes and diasteranes, a relatively high C30 sterane index, the presence of tricyclic terpenes, relatively high dibenzothiophene / phenanthrene ratios, high CPI ratio (≥ 1,0) and high Ph/nC18 ratio. All of the above parameters indicate that the source rocks represented by calcareous marls were deposited under anoxic — reducing marine environments with type II of organic matter and were generated at moderate stage of maturity. All of the age diagnosed biomarker parameters indicate that the source of oils in Mil Qasim and Sarqala oilfield are the Lower Cretaceous formations (Balambo-Qamchuqa formations). Two samples of oil from the Mil Qasim field (MQ-1) and oil samples from the Sarkal field (S-1) show an excellent oil-oil correlation based on the comparison of biomarker characteristics.<

Index UDK: 550.4+553.98(55)

Keywords: biomarker, correlation, Iraqi Kurdistan, organic matter, oil, depositio- nal environment, maturity of the oil

Bibliography:
1. Grantham P.J., Wakefield L.L. Variations in the sterane carbon number distributions of marine source rock derived crude oils through geological time. Organic Geochemistry, 1988, vol. 12, p. 61-73.
2. Hama Amin R.A. Geochemical characterization of the Upper Cretaceous Shiranish formation speak of his high potential in the south-eastern part of Iraqi Kurdistan. Oil&Gas Journal Russia, 2017, no. 8 (118), p. 50-55.
3. Mohialdeen I.M.J., Hakimi M.H., Al-Beyati F.M. Geochemical and petrographic characterization of Late Jurassic-Early Cretaceous Chia Gara Formation in Northern Iraq: palaeoenvironment and oil generation potential. Mar Pet Geol, 2013, vol. 43, p. 166–177.
4.
Killops K., Killops V. Introduction to Organic Geochemistry, second edition, Black well publishing, 2005, 393 р.
5. Osuji L.C., Antia B.C. Geochemical Implication of some Chemical Fossils as Indicators of Petroleum Source Rocks, AAPL Journal, Sci. Environ. Mgt, 2005, vol. 9, no.1, p. 45-49.
6. Peters K.E., Walters C.C., Moldowan J.M. The Biomarker Guide, Second Edition, vol. II. Biomarkers and Isotopes in Petroleum Systems and Earth History. United Kingdom at the Cambridge University Press, 2005, 684 p.
7. Shanmugam G. Significance of coniferous rain forests and related organic matter in generating commercial quantities of oil, Gippsland Basin, Australia. AAPG Bulletin, 1985, no. 69 (8), p. 1241-1254.
8. Sofer Z. Stable carbon isotope compositions of crude oils-application to source depositional environments and petroleum alteration. AAPG Bulletin, 1984, vol. 68, no. 1, p. 31-49.
9. Wang Y., Cerling T.E., Effland W.R. Stable isotope ratios of soil carbonate and soil organic matter as indicators of forest invasion of prairie near Ames, Iowa. Oecologia, 1993, no. 95, р. 3-365.
10. Waples D.W., Machihara T. Biomarkers for geologists, A practical guide to the application of steranes and triterpanes in petroleum geology. AAPG Methods in Exploration, 1991, vol. 9, no. 91, 69 р.
11. Wan Hasiah A., Abolins P. Organic petrological and organic geochemical characterization of the Tertiary coal-bearing sequence of Batu Arang, Selangor, Malaysia. Journal of Asian Earth Sciences, 1998, vol. 16, no. 4, p. 315-367.
12. Younes M.A., Philp R.P. Source Rock Characterization based on Biological Marker Distribution of Crude Oils in the Southern Gulf of Suez, Egypt. Journal of Petroleum Geology, 2005, vol. 28, no. 3, p. 301-317.