PETROLEUM POTENTIAL OF RESERVOIRS AT THE PALEOZOIC-MESOZOIC BOUNDARY IN WEST SIBERIA: SEISMOGEOLOGICAL CRITERIA ( example of the Chuzik-Chizhapka regional oil-gas accumulation )
V.A. Kontorovich
Institute of Petroleum Geology and Geophysics, Siberian Branch of the RAS, 3 prosp. Akad. Koptyuga, Novosibirsk, 630090, Russia
Keywords: Petroleum potential of reservoirs at the Paleozoic-Mesozoic boundary; Paleozoic basement; weathering zone; eroded tectonic uplift; seismic cross section; dynamic analysis; oil and gas field; oil; gas; hydrocarbon reservoir; limestones; argillaceous-silice
Pages: 422-428
Abstract
The study aims at developing petroleum potential criteria for reservoirs at the Paleozoic-Mesozoic boundary in West Siberia, by the example of the Chuzik-Chizhapka regional oil and gas accumulation in the Parabel District (Tomsk Region).
Oil and gas accumulations in formations of the Paleozoic-Mesozoic boundary were discovered in the Archa, Urman, Gerasimovka, Kalinovoe, North Kalinovoe, Tambai, Ostanino, North Ostanino, and other fields within the Chuzik-Chizhapka zone. Hydrocarbons are hosted by reservoirs of different lithologies and ages, including Devonian and Carboniferous organic, dolomite, and siliceous limestones and argillaceous-siliceous rocks.
Synthetic interpretation of seismic profiling and log data was used to model the geological structure of the Chuzik-Chizhapka regional accumulation, to develop potential criteria for reservoirs of the Paleozoic basement and weathering zone, and to suggest methods for detection of complex traps in upper Paleozoic strata.
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