Beier Depression Petroleum System Study in Hailaer

Abstract

Through the study of Beier depression accumulation critical moment, divided into three sets of petroleum system in beier depression: passive faulted depression primary petroleum system, active faulted depression primary petroleum system and fault depression transform secondary petroleum system. Through the typical reservoir oil-water distribution rule and reservoir dissect result can get to know oil and gas of Beier depression concentration distribute in passive faulted depression sequence petroleum system, mainly develop reverse fault block reservoir as well as buried hill reservoir blocked by fault and uncomformable surface, active faulted depression sequence petroleum system mainly develop structure and fault-lithologic composite reservoir; Secondary petroleum system mainly develops fault lithologic reservoir; Secondary petroleum system and primary petroleum system ‘complementary’ distribution of oil and gas. Through the petroleum system classification, to find the distribution regularity of oil and gas, and guide field work.