珠江口盆地珠一坳陷油气资源再评价  

Hydrocarbon resources reassessment in Zhu Ⅰ depression,Pearl River Mouth basin

作　　者：施和生[1,2] 朱俊章 姜正龙[3] 舒誉 谢泰俊 吴建耀 

机构地区：[1]同济大学海洋与地球科学学院 [2]中海石油(中国)有限公司深圳分公司研究院 [3]中国地质大学(北京)海洋学院

出　　处：《中国海上油气》2009年第1期9-14,共6页China Offshore Oil and Gas

基　　金：中国海洋石油总公司2004年综合科研项目“珠一坳陷古近系层序地层与油气成藏条件研究”部分研究成果

摘　　要：应用含油气系统理论与方法,采用成因评价法,将地质分析与模拟计算、三级层序地层分析与地质建模、二维地震资料与三维地震资料以及"点、线、面"(钻井、地震剖面、三级层序)资料及研究成果有机结合,按半地堑三级层序分析确定生烃参数,按半地堑不同层系(组)分析确定生油边界和生油中心,根据石油地质条件不同分时期选取运聚系数,计算了珠一坳陷不同时期各半地堑生烃层序的生烃量和不同时期各半地堑的油、气资源量,并根据生烃强度、资源量和资源丰度等指标对区内10个半地堑油气资源潜力进行了评价,其结果再次证明了珠江口盆地是中国近海剩余油气资源量较大的地区之一。The petroleum system theory and methods and the genetic assessment methods are applied to integrate geological analysis with basi modeling, third sequence strata analysis with geological model-building, 2D seismic data with 3D data, and point, line and area （borehole, seismic section and third sequence）data with the research results. The hydrocarbon generation parameters are determined by the third sequence analyses in half grabens, the oil generation boundaries and centres are determined by various strata series （formation） analyses in different half grabens, the coefficients of migra- tion and accumulation are selected for different stages of petroleum geology conditions, and finally the amounts of hydrocarbon generation are calculated for each hydrocarbon generation sequence in different half grabens at each stage and the hydro- carbon resources for each half graben at each stage. Then the hydrocarbon resources potential is assessed in 10 grabens by their hydrocarbon generation intensities, resources amounts and abundances, with the results again proving that Pear River Mouth Basin is one of the offshore areas with more remaining hydrocarbon resources in China.

关 键 词：油气资源 再评价 成因评价法 生烃量 油气资源量 半地堑 珠一坳陷 珠江口盆地 

分 类 号：P618.13[天文地球—矿床学] P618.130.2[天文地球—地质学]