Hydrocarbon distribution rule of complex reservoir in Yingmali-Yaha area
Cui Hai-feng1,2, Zheng Duo-ming3
1. Chengdu University of Technology,Chengdu City,Sichuan Province,610059,China;
2. Northwest Branch,Research Institute of Petroleum Exploration & Development,PetroChina,Lanzhou City,Gansu Province,730020,China;
3. Research Institute of Petroleum Exploration & Development,Tarim Oilfield Co.,Ltd,Ku'erle City,Xinjiang Uighur Autonomous Region,841000,China
Abstract：Yingmaili-Yaha area is one of important prospect of hydrocarbon exploration in Tabei swell. Starting from analyzing regional hydrocarbon accumulation conditions,the paper clarified that the bidirectional supply of oil/gas resource gained from north and south sides of the region closely adjacent to Kuche Depression and North Depression,development of superposition of traps and continuous action of succession fault are the basis of the complex reservoir formed in the region; the hydrocarbon distribution was controlled by paleohigh and paleoslope as a whole,which closely distributed along the structural belt in axis of Luntai salient; the local accumulation depended on the reservoir-cap assemblage and conducting system and showed ladder-like migration along the high-part of paleostructure,unconformity surface and fracture.
