摘要
本区白垩系分布面积30000km^2,厚达5000m,有10多口井见油气显示,1口井获工业性油流。白垩系油气源有自生和次生两类,有较好的储、盖和圈闭条件。
The Cretaceous System in Jianghan Basin covers an area of 30000 km^2with a thickness of 5000m,in which oil and gas seepage has been found inmore than ten wells and commercial oil flow is discovered in one well.Thehydrocarbon preserved in the Cretaceous derived from the Zongkou andWoshi deep Depressions(the Yuyang Formation of the Cretaceous),theunderlying Mesozoic coal measures of 1000m or more and Meso-Paleozoicmarine sediments of several thousand metres thick,possessing fine reservoir-covering and trap conditions.The Zongkou,Woshi Depressions and the peripheral areas are consi-dered to be favourable regions for explorating self generation-self reservoiringoil pools,while the uplifting walls of Qianbei-Tianmen,Tonghaikou,Wancheng,Zhijiang and Zhoulaozui huge faults are favourable for the exp-loration of secondary oil pools.
出处
《石油与天然气地质》
EI
CAS
CSCD
北大核心
1989年第1期89-93,共5页
Oil & Gas Geology
