ГЕОЛОГОГЕОХИМИЧЕСКИЙ ПРОГНОЗ НЕФТЕГАЗОНОСНОСТИ ГЛУБОКОПОГРУЖЕННЫХ ОТЛОЖЕНИЙ СЕВЕРА ЗАПАДНО-СИБИРСКОГО НЕФТЕГАЗОНОСНОГО БАССЕЙНА

Abstract

Geological-geochemical features are considered and the forecast oilbearingness of Mesozoic sediments Nadym-Taz gas-oilbearing area of WestSiberian basin is given. Some results of drilling Tumen superdeep well6, concerning detailed stratigraphy and geochemical characteristic of Jurassic and Triassic sediments are resulted. Is shown, that the greatest interest for searches of industrial fields of liquid petroleum is represented by depths up to 4,50...4,75 km. Below, in sediments of Jurassic and Triassic bottoms, can settle down only gas-condensate and gas deposits.