三江盆地石油地质条件与勘探前景  

Petroleum geologic conditions and exploration prospect of Sanjiang basin

作　　者：胡志方[1,2] 马义忠[1] 乔桂林[2] 于明德[2] 李磊[2] 张留欣[2] 

机构地区：[1]中国地质大学(北京)能源学院,北京100083 [2]中国石化河南油田分公司勘探开发研究院

出　　处：《河南石油》2006年第1期1-4,共4页Henan Petroleum

摘　　要：三江盆地作为我国东部中生界唯一的海相和海陆交互相沉积盆地,受早白垩世末构造运动的强烈改造,其原型盆地与现今残留盆地存在较大差异,有机质热演化已达成熟—高成熟演化阶段;发育上侏罗统、下白垩统和第三系三套烃源岩,油气源较丰富;多期构造运动和火山活动,形成的两组断裂以及不整合面,为油气运移提供良好的通道和运移动力;圈闭类型较多,定型早,与油气生排烃期形成良好的匹配关系;存在西部、东部两类不同成藏组合的勘探领域,具有较好的勘探前景。As a unique Mesozoic sedimentary basin of marine and transitional facies in the eastern part of China, Sanjiang basin was intensely reconstructed by the tectonic movement at the end of early Cretaceous, thus its prototype basin is quite different with the present residual basin. The thermal evolution of organic matter was in mature to highly mature phases. The Upper Jurassic, Lower Jurassic and Tertiary source rocks were developed, thus hydrocarbon sources were relatively rich. Two groups of faults and unconformities, resulted from the multiphase tectonic movements and volcanic activities, acted as the favorable hydrocarbon migration pathways. There were several trap types and the formation time of which was relatively early and matched well with hydrocarbon generation and expulsion. Two different types of plays occur in the western and eastern parts with large exploration potentials.

关 键 词：三江盆地 石油地质条件 资源潜力 勘探前景 

分 类 号：TE111.1[石油与天然气工程—油气勘探]