中国北方石炭系—二叠系致密油气资源前景分析

Prospect analysis of Carboniferous-Permian tight oil and gas resources in northern China

中国北方石炭系—二叠系是古生代分布最广泛的层系,主要为海相及海陆交互相沉积环境,为一套碳酸盐岩与碎屑岩不等厚互层沉积。该层系发育多套烃源岩,分布广,厚度大;油气资源丰富,潜力大;发育多套生储盖组合,成藏条件优越。因此,北方石炭系—二叠系是我国当前和今后致密油气领域提高油气储量、产量的重要层系之一。

Carboniferous-Permian of northern China is one of the most extensively distributed Paleozoic strata,which is mainly marine and marine-terrigenous alternating facies with the sedimentary characteristics of uneven carbonate and clastic rocks interbeded.Many hydrocarbon sources were developed in Carboniferous-Permian of northern China with the characteristics of widely distribution,huge thickness,abundant oil-gas resources and great potential.And lots of source-reservoir-caprock assemblages with excellent reservoir forming condition were developed,which is one of the most important strata of enhancing tight oil-gas reserves in the present and future China.