In the process of developing exploration and development of deposits, as well as in the process of developing the equilibrium state of rocks, it is not constant - it undergoes any changes all the time. The processes and phenomena that cause deformation of the earth's crust, its surface and mountain ranges at various stages of development of oil and gas fields are quite popular in world practice, especially in countries involved in the extraction of hydrocarbons and other minerals. The ranges and scales of manifestation of all kinds of deformation processes have rather wide boundaries: subsidence of the earth's plane is possible from a few millimeters to several tens of meters. This problem is relevant throughout Russia, especially in Western Siberia, where most of the country's fields are being developed.
This article presents the main causes and factors of the occurrence of rock deformation, methods of their determination, the tasks achieved by solving this problem. It also evaluates the baseline data for the validity of the studies.
As examples of the influence of reservoir deformations on the development of fields, calculations are given that were carried out in laboratory conditions on rock samples and cores from layers J1-1 - JV6 of the Khokhryakovskoye, Permyakovskoye and Koshilskoye fields. In particular, the dependences of the influence of stress and effective pressure on the rock on the reservoir properties, namely, the porosity and permeability of the rock, have been determined and built.
Research data shows that reservoir deformation should be actively studied and ways to reduce it should be sought. The solution to this problem is relevant in the formation and construction of development systems.
deformation, rock reservoir, effective pressure, shear of rocks, permeability, saturated core.
Anop А.А., Schemelin Yu.А. Uprugie kharakteristiki kollektorov Krapivinskogo mestorozhdeniya Tomskoy oblasti [Elastic reservoir characteristics of Krapivinskoye field in the Tomsk Region]. Bulletin of the Tomsk Polytechnic University, 2011, Vol. 318, No.1, pp. 106-108. (in Russian)
Makarenkov Е.S. Povyshenie effektivnosti razrabotki tulskoy zalezhi Alnyashskogo neftyanogo mestorozhdeniya. [Improvements in development efficiency of the Tulskian reservoir of Alnyashskoye oil field]. Proceedings of the Conference Problemy razrabotki mestorozhdeniy uglevodorodnykh i rudnykh poleznykh iskopaemykh [Topical issues related to development of hydrocarbon and ore mineral deposits], 2019. Vol. 1, pp. 172-174. (in Russian)
Karev V.I., Khimulya V.V. Vliyanie napryazhenno-deformirovannogo sostoyaniya na filtratsionnye kharakteristiki porod–kollektorov neftegazovykh mestorozhdeniy [Effects of stress-strain state on fluid flow characteristics of reservoir rocks of oil and gas fields]. Moscow University Physics Bulletin, 2018, No. 4. (in Russian)
Zhukov V.S. Osnovnye prichiny izmeneniya kompleksa fizicheskikh svoystv kollektorov pri razrabotke mestorozhdeniy uglevodorodov [Main causes of changes in physical reservoir properties in the course of development of oil and gas fields]. Vesti gazovoy nauki, 2014, No.4, pp.174-183. (in Russian)
Аgzamov А.А. Otsenka stepeni snizheniya koeffitsienta produtivnosti skvazhin vsledstvie deformatsii kollektora [Evaluation of the extent of reduction in well productivity index due to reservoir rock deformation]. Neftepromyslovoye delo, 2011, No.4, pp.13-17. (in Russian)
Shpurov I.V. Nauchno-metodicheskoe obosnovanie effektivnoy razrabotki trudnoizvlekaemykh zapasov nefti yurskikh otlozheniy Zapadnoy Sibiri na osnove detalnogo geologo-tekhnologicheskogo modelirovaniya [Scientific substantiation of efficient development of hard-to-recover Jurassic oil reserves of Western Siberia based on detailed geological and reservoir simulation modeling]. Extended abstract of Dr.Sc. thesis, 2015, pp. 18-22. (in Russian)
Karmansky D.А., Petrakov D.G. Laboratornoye modelirovanie izmeneniya mekhanicheskikh i filtratsionnykh svoystv porod kollektorov na razlichnykh etapakh razrabotki mestorozhdeniy nefti [Laboratory modeling of the changes in mechanical and fluid flow properties of reservoir rocks at different stages of oil field development]. Bulletin of Perm University, 2020, Vol.20, No.1, pp. 49-59. (in Russian)
Kosterin А.V., Skvortsov E.V. Napryazhenno-deformirovannoe sostoyanie gornykh porod i filtratsiya v neodnorodnykh plastakh [Stress-strain state of rocks and fluid flow in heterogeneous reservoirs]. Vychislitelnye tekhnologii, 1999, Vol. 4, No.2, pp. 42-50. (in Russian)
Grigorev B.V., Shubin А.А. Vliyanie izmeneniya effektivnogo davleniya na filtratsionno-emkostnye svoystva porod-kollektorov [Effects of changes in net overburden pressure on reservoir quality]. Bulletin of Tyumen State University, 2015, Vol.1, No.2, pp. 15-21. (in Russian)
E.S. Makarenkov Vlijanie deformacij kollektora na razrabotku mestorozhdenij Zapadnoj Sibiri [Influence of collector deformations on the development of Western Siberia]. Neftyanaya Provintsiya, No. 3(23), 2020. pp.68-84. DOI https://doi.org/10.25689/NP.2020.3.68-84 (in Russian)