Hydrogas geochemical indicators of the oil and gas potentiality of the Tunguska basin

Abstract

Abstract: hydro-gas-geochemical oil and gas prospecting studies were carried out in the west of the Siberian platform in the basin of the river. Podkamennaya Tunguska. 2.7 thousand sources of groundwater and watercourses were studied in terms of water-dissolved gases. The main informative hydro-gas geochemical indicators in the Tunguska basin in the upper hydrodynamic zone are: methane and heavy hydrocarbons. 40 methane anomalies and 48 heavy hydrocarbons anomalies have been identified, mainly associated with geodynamic active zones and local tectonic structures.