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UDC (552.3:551.311.231):553.981/.982(571.16) IMPACT OF MAGMATIC ROCKS ON FORMATION OF OIL AND GAS POOLS WITHIN EROSION-TECTONIC BASEMENT HIGHS. A CASE STUDY FROM THE TOMSK REGION FIELDS
E. A. Aykasheva, N. S. Kukushkina, Yu. V. Kukushkin, N. I. Panova, E. Yu. Safronova, G. I. Tishchenko, A. V. Tishchenko, V. M. Tishchenko
The paper discusses the impact of magmatic rocks on formation of hydrocarbon pools both in reservoirs within the basement weathering zone and in sedimentary strata of the platform sedimentary cover. Magmatic complexes are generally confined to the areas of increased and continuous tectonic activity, which provided for fracturing, formation of fractured-porous reservoirs, and supply of hydrocarbons from weathering crust deposits to the Mesozoic strata. Besides, the re-deposited weathering crust of magmatic rocks affects mineral composition of beds sealing the erosion-tectonic highs in the basement of sedimentary cover.
Key words: magmatic rocks, weathering crust, oil pools, gas-condensate fields.
DOI 10.20403/2078-0575-2016-2-78-85
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