Pogodaev A.V.

a-pogodaev@tngas.ru


Graduated from Irkutsk State University named after A.A. Zhdanov (1980), specialization "exploration of oil and gas fields".
Head geologist of OAO "Yakutskgeofizika".
Area of scientific interest: geology of oil and gas.
Regional petroleum geology
Section editor – PhD in geology and mineralogy Makarevich V.N.
Article # 39_2018 submitted on 08/31/2018 displayed on website on 10/25/2018
19 p.
pdf Influence of abnormally high formation pressure on the Permian sequences preservation conditions of the Khapchagay mega-swell
The main fields of the Lena-Vilyuy Petroleum Province are within Khapchagay district. The massive nature of the Permian gas reservoirs, controlled by Khapchagay elevation used in the first appraisal of potential reserves of the giant trap, was based on the large linear size of the studied structure. The presence of an abnormally high formation pressure indicated the exceptional sealing quality of the Nedzheli Formation seal – like already made prediction.
The bedded form of sequences considered for exploration, was actively discussed. It significantly reduced the trap's reserves and contradicts the original chosen "massive" model. Along with the gas flows from Permian section during the well testing, the inflows of formation water was obtained.
The analysis of hydrogeological testing performed by the author indicates the presence of a high lateral pressure gradient. Distribution of formation pressure within Khapchagay structure characterized by a range of values comparable with the amplitude of the trap that shows its hydrodynamic openness. The key influence of the dynamics of the upper Permian hydrogeological system on the preservation conditions of gas deposits in Khapchagay district was established.
A conceptually new Geological model of the formation of gas reservoirs is proposed. It is concluded that Permian oil and gas system of Khapchagay structure objectively lost prevailed "massive" gas saturation character and position of the boundary "gas-water" in the new conditions is determined not only by the structural factors, but also by the dynamics of the related aquifer system. The probability of reservoirs detection Permian section remains within the flat areas of the southern slope of the structure. Additional migration gas flow towards the southern side is a favorable factor for the formation of new accumulations of hydrocarbons in the surrounding areas.

Keywords: Permian sedimentary rocks, abnormal reservoir pressures, hydrogeological system, lateral gradient, gas field, Khapchagay mega-swell, Siberian Platform.
article citation Pogodaev A.V. Vliyanie rezhima anomal'no vysokogo plastovogo davleniya na usloviya formirovaniya i sokhraneniya zalezhey gaza v verkhnepermskikh otlozheniyakh Khapchagayskogo megavala [Influence of abnormally high formation pressure on the Permian sequences preservation conditions of the Khapchagay mega-swell]. Neftegazovaya Geologiya. Teoriya I Praktika, 2018, vol. 13, no. 4, available at: http://www.ngtp.ru/rub/2018/39_2018.html
DOI https://doi.org/10.17353/2070-5379/39_2018
References
Al'shinskiy V.S., Dyunin V.I. Gidrogeodinamika neftegazonosnykh basseynov (K 100-letiyu professora G.M. Sukhareva) [Hydrogeodynamics of petroleum basins (to the 100th anniversary of Professor G.M. Sukharev)]. Vestnik MGU, Seriya 4: Geologiya, 2007, no. 3, p. 88-90.
Antsiferov A.S. Gidrogeologiya drevneyshikh neftegazonosnykh tolshch Sibirskoy platformy [Hydrogeology of the oldest petroleum bearing strata of the Siberian Platform]. Moscow: Nedra, 1989, 176 p.
Bakin V.E., Bodunov E.I., Marenin V.A., Panteleev V.A. Permo-triasovyy produktivnyy kompleks Khapchagayskogo gazonosnogo rayona [Permo-Triassic system Khapchagay productive gas-bearing region]. Poiski i razvedka neftyanykh i gazovykh mestorozhdeniy v Yakutskoy ASSR. Yakutsk: Izdatel'stvo YaF SO AN SSSR, 1976, p. 115-123.
Dmitrievskiy A.N., Tomilova N.N., Yurova M.P., Rudov A.A. Vulkanogennye prirodnye rezervuary Yakutii [Volcanogen reservoirs of Yakutia]. Moscow: GEOS, 2002, 92 p.
Geologiya nefti i gaza Sibirskoy platformy [Petroleum geology of the Siberian Platform]. A.S. Antsiferov, V.E. Bakin, I.P. Varlamov, V.I. Vozhov, V.N. Vorob'ev, A.V. Gol'bert, V.V. Grebenyuk, M.P. Grishin, T.I. Gurova, D.I. Drobot, A.E. Kontorovich, V.L. Kuznetsov, V.M. Lebedev, I.G. Levchenko, M.M. Mandel'baum, N.V. Mel'nikov, K.I. Mikulenko, G.D. Nazimkov, V.D. Nakaryakov, I.D. Polyakova, B.L. Ryb'yakov, V.E. Savitskiy, V.V. Samsonov, O.F. Stasova, V.S. Starosel'tsev, V.S. Surkov, A.A. Trofimuk, E.E. Fotiadi, Moscow: Nedra, 1981, 552 p.
Istoriya neftegazoobrazovaniya i neftegazonakopleniya na vostoke Sibirskoy platformy [History of petroleum formation and accumulation in the Eastern Siberian platform]. B.A. Sokolov, A.F. Safronov, A.An. Trofimuk, G.S. Fradkin, V.E. Bakin, V.A. Kashirtsev, A.V. Yapaskurt, A.N. Izosimova, Moscow: Nauka, 1986, 167 p.
Pogodaev A.V., Sitnikov V.S., Buydyllo I.V. Perspektivy neftegazonosnosti i prioritetnye napravleniya dal'neyshikh poiskovykh rabot v Vilyuyskoy neftegazonosnoy oblasti (Sibirskaya platforma) [Oil and gas prospects and priorities for further exploration in the Vilyuy petroleum region (Siberian Platform)]. Geologiya nefti i gaza, 2015, no 2, p. 6-16.
Pogodaev A.V., Sitnikov V.S., Lysov B.A. Litologicheskie i gidrodinamicheskie osobennosti gazonosnosti verkhnepermskikh i nizhnetriasovykh otlozheniy Khapchagayskogo rayona Vilyuyskoy neftegazonosnoy oblasti [Lithological and hydrodynamic features of the gas reservoirs of the Upper Permian and lower Triassic sequences from Khapchagay area of the Vilyui pertroleum bearing region]. Geologiya nefti i gaza, 2012, no. 4, p. 2-12.
Safronov A.F. Perspektivy narashchivaniya syr'evoy bazy neftegazodobychi na territorii Respubliki Sakha (Yakutiya) [Prospects for expanding of the oil and gas reserves production on the territory of the Republic of Sakha (Yakutia)]. Nauka i tekhnika v Yakutii, 2009, no 2 (17), p. 15-21.
Surnin A.I. Gidrodinamika produktivnykh gorizontov severo-zapada Vilyuyskoy sineklizy [Hydrodynamics of the productive levels of the North-West of the Vilyuy syneclise]. Geokhimicheskie i gidrogeologicheskie predposylki poiskov nefti i gaza v Sibiri. Novosibirsk: SNIIGGiMS, 1983, p. 119-125.
Yakovlev Yu.I., Semashev R.G. Gidrodinamicheskoe obosnovanie vydeleniya vodonapornykh sistem depressionnogo tipa [Hydrodynamic explanation of water-pressure systems of depression type]. Geologiya nefti i gaza, 1982, no. 9, p. 23-27.
Yakovlev Yu.I., Semashev R.G. Ispol'zovanie dannykh gidrodinamicheskikh issledovaniy dlya podscheta zapasov uglevodorodov i proektirovaniya opytno-promyshlennoy ekspluatatsii [Use of hydrodynamic research data for calculation of hydrocarbon reserves and outline of pilot operation]. Problemy metodiki poiska, razvedki i osvoeniya neftyanykh i gazovykh mestorozhdeniy Yakutskoy ASSR: tezisy dokladov nauchno-prakticheskoy konferentsii. Yakutsk, 1983, part ΙΙ, p. 81-84.
Petroleum potential and development
Section editor – PhD in geology and mineralogy Zharkov A.M.
Article # 9_2017 submitted on 12/09/2016 displayed on website on 03/21/2017
20 p.
pdf  Newest forecast and development updating of Vilyuiskaya syncline petroleum objects
The area of research is the one of the most studied on the Siberian platform. However, the predominant amount of geological and geophysical data had been obtained in the 60-70`s of the last century at a relatively low methodological and technological levels. Until recently, the main focus of research here were almost exclusively on the Mesozoic and Permian deposits, which form the upper part of the sedimentary mantle to a depth of 2-6 km. As a result, several gas-condensate fields were discovered, numerous oil manifestations were identified. The effectiveness of geological exploration of the past years is assessed; and the necessity to return to many of these studied areas again is substantiated taking into account new insights into their structure and using modern technologies of oil and gas exploration. In addition, for the first time the issue of the feasibility of Vilyuiskaya syncline sideparts’ additional studying was comprehensively considered, where the possible discovery of new hydrocarbon deposits, mainly oil, is expected.

Keywords: petroleum objects, hydrocarbons, Vilyuiskaya syneclise.
article citation Sitnikov V.S., Alekseev N.N., Pavlova K.A., Pogodaev A.V., Sleptsova M.I. Noveyshiy prognoz i aktualizatsiya osvoeniya neftegazovykh ob"ektov Vilyuyskoy sineklizy [Newest forecast and development updating of Vilyuiskaya syncline petroleum objects]. Neftegazovaya Geologiya. Teoriya I Praktika, 2017, vol. 12, no. 1, available at: http://www.ngtp.ru/rub/6/9_2017.pdf
DOI https://doi.org/10.17353/2070-5379/9_2017
References

   Chernenko V.B., Sivtsev A.I. K probleme relaksatsii yurskoy zalezhi Mastakhskogo GKM [On the problem of the relaxation of the Jurassic deposits, Mastah gas field]. Nauka i obrazovanie, 2015, no. 1, p. 16-21.
   Geologiya nefti i gaza Sibirskoy platformy[Oil and gas geology of the Siberian platform]. A.S. Antsiferov, V.E. Bakin, I.P. Varlamov, V.I. Vozhov, V.N. Vorob'ev, A.V. Gol'bert, V.V. Grebenyuk, M.P. Grishin, T.I. Gurova, D.I. Drobot, A.E. Kontorovich, V.L. Kuznetsov, V.M. Lebedev, I.G. Levchenko, M.M. Mandel'baum, N.V. Mel'nikov, K.I. Mikulenko, G.D. Nazimkov, V.D. Nakaryakov, I.D. Polyakova, B.L. Ryb'yakov, V.E. Savitskiy, V.V. Samsonov, O.F. Stasova, V.S. Starosel'tsev, V.S. Surkov, A.A. Trofimuk, E.E. Fotiadi, A.V. Khomenko. Editors A.E. Kontorovich, V.S. Surkov, A.A. Trofimuk. Moscow: Nedra, 1981, 552 p.
   Golovachev B.C., Kevvay V.F., Kupriyanov Ya.I., Sidorov D.P. Geologicheskie stroenie i neftegazonosnost' mestorozhdeniy Khapchagayskogo rayona. Poiski i razvedka neftyanykh i gazovykh mestorozhdeniy v Yakutskoy ASSR [Geological structure and oil and gas fields of the Hapchagay area]. Yakutsk: izd. YaF SO AN SSSR, 1976, p. 102-114.
   Grausman A.A., Arzhakov M.I., Tugi E.R. Kak eto bylo. Otkrytie nefti i gaza v Yakutii [As it was. Discovery of oil and gas reserves in Yakutia]. Novosibirsk: «Sibtekhnorezerv», 2002, part 1, p.5-31.
   Gudkov A.A. Tektonika osadochnogo chekhla Vilyuyskoy sineklizy i prilegayushchikh rayonov Predverkhoyanskogo progiba [Tectonics of the sedimentary mantle of the Vilyuiskaya syncline and surrounding areas of the Predverhoyansky deflection]. Tektonika, stratigrafiya i litologiya osadochnykh formatsiy Yakutii, Yakutsk: YaF SOAN SSSR, 1968, p. 32-41.
   Matveev V.D., Naydanov V.A. Tektonicheskie formy nizhnepaleozoyskogo strukturnogo plana vostochnoy chasti Vilyuyskoy sineklizy [Tectonic forms of the Lower Paleozoic structural plan for the eastern part of the Vilyuiskaya syneclise]. Izd. AN SSSR. Ser. Geol, 1981, no. 12, p. 131-136.
   Megakompleksy i glubinnaya struktura zemnoy kory neftegazonosnykh provintsiy Sibirskoy platform [Megacomplexes and deep structure of the Earth crust of petroleum provinces of the Siberian platform]. M.P. Grishin, V.S. Starosel'tsev, V.S. Surkov, V.I. Lotyshev, P.K. Mazaeva, A.V. Migurskiy, K.I. Mikulenko, G.F. Popilukha, E.E. Fotiadi, G.S. Fradkin, V.B. Khmelevskiy, V.A. Astashkin, O.V. Vaag, V.V. Gayduk, V.V. Grebenyuk, G.S. Gusev, T.A. Divina, V.A. Kashirtsev, A.E. Kontorovich, R.G. Matukhin, N.V. Mel'nikov, V.A. Mikheev, A.V. Parshin, A.Ya. Khlebnikov, B.R. Shpunt. Moscow: Nedra, 1987, 204 p.
   Protopopov Yu.Kh. Tektonicheskie kompleksy platformennogo chekhla Vilyuyskoy sineklizy [Tectonic complexes of platform mantle of the Vilyuiskaya syncline]. Yakutsk: Izd. YaNTs SO RAN, 1993, 48 p.
   Shatskiy N.S. O vozmozhnykh neftenosnykh rayonakh Sovetskogo Soyuza [On the possible oil-bearing regions of the Soviet Union]. Geologiya i poleznye iskopaemye Severa SSSR. Leningrad, 1936, vol. 11, p. 299-307.
   Sitnikov B.C., Kushmar I.A., Prishchepa O.M., Pogodaev A.V. Perspektivy neftenosnosti yuzhnoy chasti Vilyuyskoy sineklizy [Oil potential prospects of the southern part of the Vilyuiskaya syncline]. Razvedka i okhrana nedr, 2014, no. 7, p. 22-28.
   Sitnikov B.C., Spektor V.B. Vilyuysko-Aldanskaya sistema dislokatsiy [Vilyi-Aldan system of dislocations]. Geofizicheskie issledovaniya v Yakutii, Yakutsk: YaF SO AN SSSR, 1978, p. 1021.
   Stroenie i evolyutsiya zemnoy kory Yakutii [Structure and evolution of the Earth's crust of Yakutia]. G.S. Gusev, A.F. Petrov, G.S. Fradkin, F.F. Tret'yakov, A.V. Prokop'ev, B.R. Shpunt, A.K. Bobrov, I.E. Moskvitin, M.D. Bulgakova, P.K. Mazaeva, V.S. Sitnikov, V.S. Starosel'tsev, V.V. Gayduk, V.A. Kashirtsev, V.D. Matveev, K.I. Mikulenko, Yu.D Nedosekin, B.M. Koz'min, V.S. Imaev, Yu.Kh. Protopopov, V.D. Suvorov, V.F. Uarov, G.V. Bocharov, V.I. Solov'ev, A.A. Surnin, I.Sh. Syundyukov, O.V. Grinenko, D.V. Abroskin. Moscow: Nauka, 1985, 247 p.