巴楚隆起古董山断裂演化与油气的关系

The Fracture Evolution and the Relationship between the Oil and Gas of Gudongshan in Bachu Uplift

古董山构造位于巴楚隆起的中南部,该地区主要经历了加里东期、海西期、喜山期3期构造运动,这3期构造运动控制了区内的构造变形,同时形成了T47、T06、T0、T02等大型不整合面。在地震资料精细解释的基础上,通过对古董山断裂构造样式和演化过程的分析,认为该地区在构造运动中发育了一系列断裂,并且在早期古构造带的基础上,发育起来了继承性很强的背斜、断背斜构造。这些断裂和不整合不仅可以对早期的油气藏形成破坏,同时又可以作为油气运移的纽带和桥梁。

The Gudongshan tectonic located in the central and southern Bachu uplift,the region's major experience is Gary east period,haixi period,Himalayan period tectonic movement.These three tectonic movements control tectonic deformation in the region,also formed large unconformity formation such as T74, T60、T50、T20 and others.This paper based on the detailed seismic data interpretation,according to the fracture structure style and evolutionary process analysis in Gudongshan,thinks that it developed a series of fracture in the tectonic movement in the region.And on the basis of early ancient tectonic zone,it developed the anticline,broke anticline structure which had strong inheritance.These faults and uncomformity play an important role in oil and gas accumulation and distribution.It can not only damage early reservoir formation,but also be used as a link and the bridge for oil and gas migration.