论文部分内容阅读
石南地区位于准噶尔盆地腹部,油气来自区外的盆一井西凹陷二叠系,输导体系为油气运聚成藏的主要控制因素。区内油气输导体系的主要构成要素为断裂和不整合。断裂分为深部逆断层和浅部的正断层,共同构成了油气垂向运移的主要通道。不整合主要是海西、印支、燕山、喜山等多期构造运动形成的区域不整合,其中对研究区油气运移其主要作用的有五套,主要以平行不整合和断褶型的角度不整合为主,为油气侧向运移的主要通道。本区的油气输导体系为断裂和不整合相互交织构成的阶梯状输导网络,其中深部输导体系控制了油气向区内浅层的运移;浅层输导体系对运移上来的油气进行二次分配,控制中浅层油气的运聚成藏。
Shijin area is located in the abdomen of Junggar Basin, with oil and gas coming from Permian West Sag of Permian. The transport system is the main controlling factor for hydrocarbon migration and accumulation. The main components of oil and gas transmission system in the area are fracture and unconformity. The faults are divided into deep reverse faults and shallow normal faults, which together constitute the main channel for vertical migration of oil and gas. Unconformity is mainly unconformity caused by the multistage tectonic movement such as Hercynian, Indosinian, Yanshan and Himalayan. There are five main types of unconformity in the study area, mainly including parallel unconformity and fold type The main angle of the unconformity, the main channel for the lateral migration of oil and gas. The oil and gas transport system in this area is a staircase-shaped transport network composed of intertwined faults and unconformities, in which the deep transport system controls the migration of oil and gas into shallow zones in the area. Secondary distribution, control of the shallow oil and gas migration and accumulation.