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2018/3
Weathering crust of basement of southern part of Nepsko-Botuobinskaya anticline for prospective exploration for oil and gas
Geosciences

Authors: Alexander V. POSTNIKOV, head of Department of Lithology of Gubkin Russian State University of Oil and Gas (National Research University). Doctor of Geological and Mineralogical Sciences. In 1971, he graduated from Gubkin University, specializing in Geology and Exploration of Oil and Gas Fields. Received candidate’s degree in 1976. Research interests: lithology of oil and gas deposits, tectonics of platform oil and gas provinces, Precambrian Geology. Author and co-author of more than 150 published works, including 4 monographs, on various problems of Geology. E-mail: postnikov.a@gubkin.ru
Olga V. POSTNIKOVA, doctor of Geological and Mineralogical Sciences, Professor (since 2009), Head of the Research Laboratory on Oil and Gas Potential of Eastern Siberia (since 2001) of Gubkin Russian State University of Oil and Gas (National Research University). In 1979 she graduated from Gubkin University, specializing in «Geology and exploration of oil and gas fields». Received candidate’s degree in 1976. Research interests: lithology of oil and gas deposits, carbonate reservoirs, geology of Eastern Siberia. Author of more than 70 scientific papers and textbooks. E-mail: olgapostnikova@yandex.ru
Ilnur A. SABIROV, post-graduate student of the Lithology Department from 2017. He Master’s degree in «Oil and gas business» in 2017. Area of scientific interests: fractured reservoir, fault-block structure, complex manifold, basement rocks, the void space of reservoir rocks. Author and co-author of 15 scientific papers. E-mail: sabirov.i@gubkin.ru
Yuliana V. ROSTOVTSEVA, doctor of geological and mineralogical Sciences since 2012, head of the Department of oil and gas sedimentology and marine Geology. Аuthor of 140 scientific works, including 8 collective textbooks and monographs. Area of scientific inte- rests — identification of regularities of sedimentogenesis and lithogenesis, conducting paleogeographic reconstructions with the definition of the facial structure of the strata, the recovery of the history of the development of sedimentation basins, geochronological studies on the calculations of astronomical cycles. E-mail: rostovtseva@list.ru

Abstract: This article is about the structure and composition of the weathering crust of the basement of the southern part of the Nepsko-Botuobinskaya anticline. The authors classified and named the rocks composing the upper part of the crystalline basement according to the 3rd edition of the latest Petrographic Code of Russia, published in 2008. In addition, reservoir properties of weathered rock were estimated. The question about weathering rocks as a prospect for oil and gas exploration was discussed

Index UDK: 552.086; 550.8.011

Keywords: weathering crust, basement, prospect, nomenclature, classification, reservoir rocks

Bibliography:
1. Goryunov E.Yu., Ignatov p.A., Trofimov V.A., Sabirov I.A. Perspectivi neftegazonosnosty fundamenta Jigulyovskogo vala. Geologya nefti i gaza, 2017, no. 2.
2. Konovaltseva E.S., Postnikova O.V., Postnikov A.V., Toporkov V.G., Savchenko S.I. Vtorichnie processi v porodah-kollektorah yaraktinskogo gorizonta yugo-vostochnogo sklona Nepsko-Botuobinskoy anteklizi/ Litologiya i poleznyt iskopaemie, 2011, no. 5, p. 505-509.
3. Kucheruk E.V. Neftegozonosnost porod fundamenta. Geology nefti i gaza, 1992, no. 1, p. 45-46.
4. Petrographic code of Russia (ed. 3). S-Pb., Izd-vo VSEGEI, 2009, 200 р.
5. Pospelov V.V. Kristallicheskiy fundament: geologo-geofizicheskie metodi izucheniya kollektorskogo petenciala I neftegazonosnosti. M.-Izhevsk, Institute of computer science, Scientific Publishing Center «Regular and chaotic dynamics», 2005, 260 p.
6. Postnikov A.V., Muslimov R.H., Plotnikova I.N. K voprosu o roli endogennogo factora v formorovanii i raspredelenii neftegazonosnosti osadochnih basseinov (na primere Tatarstana). Georesursi, 2005, no. 1 (16), p. 37-39.
7. Trofimov V.A. Glubinnie regionalnie siysmorazvedochnie issledovaniya MOGT neftegazonosnih territoriy. M.: GEOS, 2014, 202 p.
8. Trofimov V.A. Ocenka vozmozhnosti prognozirovaniya razuplotnennih zon kristallicheskogo fundamenta po seysmicheskim dannim. Geologo-geofizicheskoe modelirovanie pri poiskah nefti i gaza. M.: Igirgi, 1991, p. 126-133.
9. Trofimov V.A., Goryunov E.Y., Sabirov I.A. Innovacionnie podhodi k resheniyu problemi poiskov uglevodorodov v glubokozalegayushih gorizontah Volgo-Uralskoy neftegazodobivayushey provincii. Georesursi, 2017, no 1, p. 59-68.

2016/4
Siljan Ring Structure: Hydrocarbon Origin and Potential
Geosciences

Authors: Alexander S. BUZILOV graduated from Gubkin Russian State University of Oil and Gas. He is PhD student of the Department of Lithology of Gubkin Russian State University (National Research University) of Oil and Gas. He is author of 8 published works. E-mail: 79268863127@yandex.ru
Alexander V. POSTNIKOV graduated from Gubkin Russian State University of Oil and Gas in 1971. He is Doctor of Geology and Mineralogy, professor and Head of the Department of Lithology of Gubkin Russian State University (National Research University) of Oil and Gas. He is author of more than 100 published works, including 4 monographs. E-mail: apostnikov@mtu-net.ru

Abstract: The problems concerning the origin and hydrocarbon potential of the Siljan ring structure are discussed. Reservoirs discovered in the sedimentary section and basement using the core of three wells are shown. The control factors for deve- lopment and distribution of reservoirs within the sedimentary section and basement are presented

Index UDK: 553.982.23:550.812

Keywords: Siljan ring structure, reservoir rocks, core analysi

Bibliography:
1. Moshovich E.V. Principial’no novoe napravlenie neftegazopoiskovyh rabot — izuchenie astroblemnyh lovushek UV. Geologija nefti i gaza, 1991, no. 5, p. 8–11.
2. Gorbatschev R. The Transscandinavin Igneous Belt (TIB) in Sweden: a review of its character and evolution. Geological Survey of Finland, 2004, sp. 37, p. 9-13.
3. Grieve R.A.F. The record of impact on Earth: Implications for a major Cretaceous/Tertiary impact event. In Geological implications of impact of large asteroids and comets on the Earth, edited by L.T. Silver and P.H. Schultz. Geological Society of America, 1982, GSA Special Paper 190, p. 25-37.
4. Grieve R.A.F. The formation of large impact structures and constraints on the nature of Siljan. In Deep drilling in crystalline bedrock. Springer Verlag, 1988, Vol. 1: The deep gas drilling in the Siljan inpact structure, Sweden and astroblemes, edited by A. Boden and K.G. Eriksson, p. 328-348.
5. Harbe Muhamad, Christopher Juhlin, Oliver Lehnert, Guido Meinhold, Magnus Andersson, Maria Garcia Juanatey, Alireza Malehmir. Analysis of borehole geophysical data from the Mora area of the Siljan Ring impact structure, central Sweden. Journal of Applied Geophysics, 2015, Vol. 115, p. 183–196.
6. Lehnert O., Meinhold G., Bergstrom S.M., Calner M., Ebbestad J.O.R., Egenhoff S., Frisk A.M., Hannah J.L., Hogstrom A.E.S., Huff W.D., Juhlin C., Maletz J., Stein H.J., Sturkell E., Vandenbroucke T.R.A. New Ordovician—Silurian drill cores from the Siljan impact structure in central Sweden: an integral part of the Swedish Deep Drilling Program. Geol. Fören. Stockh. Förh, 2012, Vol. 134, p. 87–98.

2009/1
Change of reservoir properties as a result of acid treatment
Petroleum geology, geophysics

Authors: Alexander V. POSTNIKOV (b. 1948). Education - Gubkin Russian State University of Oil and Gas. The doctor of geology-mineralogical sciences, the professor, the head of the lithology department. The author of more than 100 published works, including 4 monographies, on various problems of geology.
Vladislav A. KOSMYNIN (b. 1984) education - Gubkin Russian State University of Oil and Gas. The post-graduate student of the lithology department, younger scientific employee. The author of 4 theses of reports of a student’s scientific organization (the laureate of conference). E-mail: biblioteka@nedrainform.ru

Abstract: The influence of acid treatment on carbonate reservoirs is analyzed on samples of core. Several genetic types of upper Devonian limestones and dolomites of the Timano-Pechora Province are studied. The investigated acidized samples were saturated colored pitch. The structure of pore space was analyzed in transparent sections. Depending on the rock composition and structure both improved reservoir properties of rocks, and their deterioration was established. It is shown that acid treatment in good re- servoirs can be not effective or have negative consequences, while inferior reservoirs can show improved permeability.

Index UDK: 552.08:522.54:551.734(470.13)

Keywords: collector, porosity, permeability, acid treatment, Timano-Pechora

Bibliography: