Home > Archive > No. 1–2 (187–188) 2022 > 27–35
Geology & Geochemistry of Combustible Minerals No. 1–2 (187–188) 2022, 27–35.
https://doi.org/10.15407/ggcm2022.01-02.027
Vyacheslav LUKINOV1, Kostyantyn BEZRUCHKO1, Oleksii PRYKHODCHENKO1, Vladyslav KOBEZA2
1 M. S. Polyakov Institute of Geotechnical Mechanics of National Academy of Sciences of Ukraine, Dnipro, Ukraine, e-mail: gvrvg@meta.ua
2 “Shebelinkagazvydobuvannia” Gas Industry Department of Ukrgazvydobuvannia JSC, Donets, Kharkiv Region, Ukraine, e-mail: Kobeza15@gmail.com
Abstract
The practical experience of long-term operation of hydrocarbon deposits confirms the presence of geomechanical processes and their significant impact on the state of the gas-saturated massif of rocks. In fields that are being operated for a long time, the prospects for industrial hydrocarbon accumulation can be associated with secondary gas traps of non-traditional type, in particular, technogenic ones, which are formed in low-pore reservoirs. A detailed analysis of the geological conditions of the East-Novoselovskyi field was carried out. They contribute to the formation of additional gas resources (“behind-pipe reserves” category), as well as the establishment of geological-industrial indices of the perspectivity for the formation of technogenic deposits was carried out.
The purpose of the work is geological justification and finding perspective zones for the accumulation of behind-pipe reserves through the formation of technogenic deposits under the impact of a geomechanical factor, using the example of the East-Novoselovskyi oil-gas condensate field.
For the geological conditions of the East-Novoselovskiy Oil-Gas Condensate Field, producing the additional gas reserves should be expected from technogenic deposits that are located above the industrial horizons that are being developed and formed in low-porous reservoirs under the action of a geomechanical factor, as a result of their decompaction after gas extraction from an industrial reservoir as a result of its compression. In accordance with the conducted research, the most perspective section, from the standpoint of the formation of a technogenic deposit and the accumulation of behind-pipe reserves, within the East-Novoselovskyi Oil-Gas Condensate Field there is the strata identified in the area of wells No. 16, 18, 60, in the section interval at a distance of 92.4 m up from the roof of the horizon (B-3b), which is located from a depth of 2141 m to the roof of the horizon B-3a, at a depth of 2 233 m. It is worthwhile to further carry out appropriate geophysical work for conducting the technological work for the development of technogenic deposits in perspective zones behind the casing column in operated wells.
The account of the geomechanical factor opens up the perspective of producing the additional industrial gas influx at the late stages of the development of gas and gas-condensate fields, by predicting the geological conditions for the formation of the improved secondary filtration-capacitive properties favorable to form technogenic gas deposits.
Keywords
gas fields, geomechanical factor, technogenic reservoir, behind-pipe reserves
Referenses
Abielientsev, V. M., Lurie, A. Y., Povieriennyi, S. F., & Susiak, T. Ya. (2017). Nova metodyka interpretatsii rezultativ laboratornykh doslidzhen hirskykh porid pry modeliuvanni plastovykh umov [A new method for interpreting the results of laboratory studies of rocks in modeling reservoir conditions]. Heolohichnyi zhurnal, 3, 23–30. https://doi.org/10.30836/igs.1025-6814.2017.3.117319 [in Ukrainian]
Bulat, A. F., Lukinov, V. V, Bezruchko, K. A., Krukovskyi, O. P., & Krukovska, V. V. (2018). Heomekhanichnyi chynnyk nadkhodzhennia dodatkovykh obsiahiv vilnoho metanu pry ekspluatatsii hazovykh rodovyshch [Geomechanical factor of receipt of additional volumes of free methane during the operation of gas fields]. Dopovidi Natsionalnoi akademii nauk Ukrainy, 8, 25–35. https://doi.org/10.15407/dopovidi2018.08.025 [in Ukrainian]
Bulat, A. F., Lukinov, V. V, Bezruchko, K. A., & Prykhodchenko, O. V. (2020). Vplyv heomekhanichnykh protsesiv na plastovyi tysk pry tryvalii ekspluatatsii hazovykh rodovyshch [Influence of geomechanical processes on reservoir pressure during long-term operation of gas fields]. Rozvidka ta rozrobka naftovykh ta hazovykh rodovyshch, 4(77), 62–76. https://doi.org/10.31471/1993-9973-2020-4(77)-62-76 [in Ukrainian]
Cheban, O. V., & Vladyka, V. M. (2007). Perspektyvy naroshchuvannia vydobutku hazu na starykh rodovyshchakh Peredkarpattia na prykladi Rudkivskoho hazovoho rodovyshcha [Prospects for increasing gas production at Old fields in the Carpathian region on the example of the Rudkovsky gas field]. Problemy naftohazovoi promyslovosti, 5, 326–328. [in Ukrainian]
Ivaniuta, M. M. (Ed.). (1998). Atlas rodovyshch nafty i hazu Ukrainy [Atlas of oil and gas fields in Ukraine] (Vol. 3. Ckhidnyi naftohazonosnyi rehion [Eastern oil and gas region]; Vol. 4. Zakhidnyi naftohazonosnyi rehion [Western oil and gas region]). Lviv: Ukrainska naftohazova akademiia. [in Ukrainian]
Klasyfikatsiia zapasiv i resursiv korysnykh kopalyn derzhavnoho fondu nadr [Classification of Mineral Reserves and resources of the state subsurface fund. (1997). Resolution of the Cabinet of Ministers of Ukraine № 432. https://zakon.rada.gov.ua/laws/show/432-97-p#Text [in Ukrainian]
Kyryliuk, O. V., & Rudko, H. I. (Eds.). (2019). Nadrokorystuvannia v Ukraini [Subsurface use in Ukraine]. Chernivtsi: Bukrek. [in Ukrainian]
Lukinov, V. V., Bezruchko, K. A., Prykhodchenko, O. V., & Kobeza, V. S. (2021). Pokaznyky perspektyvnosti otrymannia dodatkovykh pryplyviv vuhlevodniv na hazovykh rodovyshchakh [Indicators of prospects for obtaining additional hydrocarbon inflows in gas fields]. In Vid Mineralohii i Heohnozii do Heokhimii, Petrolohii, Heolohii ta Heofizyky: fundamentalni i prykladni trendy XXI stolittia [From Mineralogy and Geognosia to geochemistry, Petrology, Geology and Geophysics: fundamental and applied trends of the XXI century]: materialy konferentsii Kyivskoho natsionalnoho universytetu imeni T. H. Shevchenka (Kyiv, Ukraina, 28–30 veresnia 2021 r.) (pp. 193–197). Kyiv. [in Ukrainian]
Lukinov, V. V., Prykhodchenko, V. F., Zhykaliak, M. V., & Prykhodchenko, O. V. (2016). Metody prohnozu hirnycho-heolohichnykh umov rozrobky vuhilnykh rodovyshch [Methods for predicting mining and geological conditions for coal field development]. Dnipro: NHU. [in Ukrainian]