西北地区主要盆地含油气层沉积相及模式

SEDIMENTARY FACIES AND MODELS OF HYDROCARBONBEARING SEQUENCES OF THE MAIN BASINS IN NORTHWEST CHINA

本文根据西北地区主要盆地各个含油气层系沉积时的大地构造背景、盆地原型、沉积相的组合与相序等特征,建立了八类沉积模式,试图寻找含油气有利相带的成因与展布规律。

According to the geotectonic background,the prototype of the basins,the combina-tion and sequences of sedimentary facies in Northwest China,eight types of sedimentarymodels have been set up attempting to find out the origin and distribution regularity offavourable hydrocarbon-bearing zones.