Gas-geochemical indicators of oil and gas content in the above-salt complex in the west of the Siberian platform

Abstract

Abstract: gas-geochemical oil and gas prospecting studies have been carried out in the west of the Siberian platform within the Baikal anteclise. The above-salt complex was studied as part of the Upper-Middle Cambrian, Ordovician deposits and partly Silurian. More than 5000 samples of rocks represented by siltstones, sandstones, dolomites, limestones, marls were selected. Numerous anomalies in methane and heavy hydrocarbons have been established. As a rule, they are small in area, manifest themselves by tectonic disturbances, partially coincide with local positive structures.