和田古隆起构造演化及油气分布

古隆起是长期的油气运聚中心。又是我国中西部地区今后的主要油气勘探领域之一。塔 里木盆地和田古隆起.为一沉积_剥蚀性古隆起。其形成和演化在很大程度上影响了研究区内油气的生成运移聚集及保存条件等。其形成与演化可分为三个阶段,即加里东运动期的抬升剥蚀阶段海西运动期的潜伏阶段和喜马拉雅运动期的破坏阶段。最终由古隆起演变为一斜坡带。和田古隆起的存在. 使油气生成期、调整期运移期与圈闭形成期获得最佳匹配.其发育对研究区烃源岩的发育及后期成藏具有深远的地质意义。

The Tectonic Evolution in Hetian Paleohigh and Its Petroleum Distribution

The paleohigh is the center of long-term hydrocarbon migration and accumulation, and also one of the major domainsfor further exploration of west-central China. Hetian paleohigh in Tarim basin is a paleohigh with deposition and denudation.Itsformation and evolution which have greatly affected the hydrocarbon generation,migration,accumulation and preservation in thestudied area can be divided into three stages: 1) uplifted and denudated stage in Caledonian movement,2) buried stage inHercynian movement, and 3) destructed stage in Himalayan movement. And it became a slope at last following these processes. Itwas the existence of Hetian paleohigh that hydrocarbon generation, adjustment, migration and trap formation in it were in optimalmatched conditions. The evolution of it has a profound geological significance for the source rock development and hydrocarbonaccumulation in this area.