Conditions for the Formation of Ultra-deep Hydrocarbon Systems

Abstract

The study of superdeep hydrocarbon systems (SHCS) is of great importance for improving the fundamentals of forecasting oil and gas potential at large depths in the Earth's crust and for studying the generation, migration and accumulation of hydrocarbons. Research on the SHCS is very promising, both from the point of view of studying the fundamental processes of the ontogenesis of hydrocarbons, and for predicting the hydrocarbon potential of deep strata and for searching for hydrocarbon accumulations in deep-buried horizons of the Earth's crust. Isotope-geochemical studies and model constructions suggest that there is a wide distribution of the SHCS with autonomous foci of fluid generation, and deep-lateral distribution area exist in which impenetrable clayey oil-bearing rocks have very high fluid-conducting and reservoir capacities.