柴达木盆地西部褶皱构造类型及其与油气的关系

柴达木盆地西部的背斜构造主要分为同生断展背斜、后生断展背斜、同沉积背斜三种类型。同生断展背斜圈闭主要分布在昆北断阶，其次发育在阿尔金斜坡，层位上主要发育在中深层(E—N2^1)和中浅层(N2^2-N2^3)；后生断展背斜圈闭主要分布在茫崖坳陷，层位上主要发育在中深层(E—N2^1)；同沉积背斜圈闭主要分布在茫崖坳陷，层位上主要发育在中浅层(N2^3-Q1 2)。综合研究认为，三种类型的背斜圈闭都是良好的含油气构造。

Fold structure types and their relations to hydrocarbon in the west of Qaidam Basin

e anticline structure in the west of Qaidam Basin is devided into three types: contemporaneous fault-propagation anticline, epigenetic fault-propagation anticline and synsedimentary anticline. Contemporaneous fault-propagation anticline traps mainly distribute in Kunbei fault bench, secondly in Aljin slope, and mainly develop in the middle-deep layers (E-N21 ) and middle-shallow layers (N22-N23). Epigenetic fault-propagation anticline traps mainly distribute in Mangya depression, and mainly develop in the middle - deep layers ( E -N21). Synsedimentary anticline traps mainly distribute in Mangya depression, and mainly develop in the middle-shallow layers (N23-Q1 2). Comprehensive research shows that three types of anticb'ne traps are all good oil-gas-bearing structures.