Study of fractured reservoirs in Northern Sakhalin as part of a comprehensive expedition in 2020. P.A. KAMENEV, V.A. DEGTYAREV, Yu.V. KOSTROV, A.V. MARININ, I.V. BONDAR, N.A. GORDEEV, R.R. KHALIULIN, E.K. KHMARIN, A.V. LEVIN
Keywords:
fractured reservoirs, siliceous deposits, stresses, geomechanical parameters of rocks, slickensides, jointsAbstract
Study of fractured reservoirs in Northern Sakhalin as part of a comprehensive expedition in 2020. P.A. KAMENEV1, V.A. DEGTYAREV1,2, Yu.V. KOSTROV2, A.V. MARININ3, I.V. BONDAR3, N.A. GORDEEV3, R.R. KHALIULIN2, E.K. KHMARIN2, A.V. LEVIN2 (1Institute of Marine Geology and Geophysics, FEB RAS, Yuzhno-Sakhalinsk; 2LLC RN-SakhalinNIPImorneft, Yuzhno-Sakhalinsk; 3O.Yu. Schmidt Institute of Physics of the Earth, RAS, Moscow).
As part of a comprehensive scientific expedition to the Schmidt Peninsula, aimed at studying the geological characteristics and mechanical properties of fractured reservoirs, a unique set of geological and geophysical studies was conducted. Oriented samples were selected for laboratory study of geomechanical parameters and geochemical properties. Structural geology studies were performed. Detailed measurements of the spatial orientation of joints, veins, tension gashes, dikes and slickensides and a series of different tectonophysical methods for reconstructing tectonic stresses were carried out.