f Oil and gas prospecting by geochemical methods in a system ´overproductive thickness - Surface formations´

The concepts about the vertical migration of hydrocarbonaceous (HC) and other components of HC deposits towards the surf ace and into the near -surface atmosphere and their transformation in the migration paths form a theoretical basis for direct geochemical prospecting of oil and gas deposits. The formation of geochemical fields was demonstrated, by laboratory simulation and justified during work on the known deposits of HC and prospective objects.