南海北部边缘区域地质与油气运聚成藏规律  

GEOLOGICAL CHARACTERISTICS AND THE LAW OF FORMATION OF HYDROCARBON MIGRATION ON ACCUMULATION,NORTHERN SOUTH CHINA SEA

作　　者：何家雄[1] 陈胜红[2] 刘海龄[1] 万志峰[1] 

机构地区：[1]中国科学院边缘海地质重点实验室,广东广州510640 [2]中国海洋石油有限公司深圳分公司,广东广州510240

出　　处：《西南石油大学学报（自然科学版）》2008年第5期46-52,共7页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：国家重点基础研究发展计划(2007CB41170501);中国科学院知识创新工程重要方向项目(kzcx2-yw-203-2)

摘　　要：南海北部边缘盆地处于欧亚、印度-澳大利亚及太平洋三大板块相互作用的特殊构造位置,区域地质背景及地球动力学条件复杂,油气地质现象丰富多彩,不同大陆边缘区域地质背景及构造演化特征差异明显:北部边缘以拉张裂陷为主,形成了具典型断拗双层结构的断陷裂谷盆地;南部则属拗曲—伸展与挤压多因素混合成因的复合叠置型边缘,形成了拗曲—伸展与挤压复合盆地;西部为走滑伸展型边缘,形成走滑伸展型盆地。区域地质背景的差异决定了沉积盆地的类型及性质,进而控制了油气运聚成藏规律及其展布特点,因此,区域地质背景与油气运聚成藏存在成因联系与耦合关系。The marginal basin in the north of South China Sea is located in the unique tectonic location where three plates,Euro-Asia,India-Austronia and pacific interact each other.There are complicated regional setting and geodynamic conditions with aboundent geological phenomena about oil and gas,there are apparent characteristic differences of regional geological setting and tectonic evolution in different continental regions,that is,the northorn region is dominated by tention rift,forming rifted basins with dual-layered structure of typical fault and rift,and the southern region is complex superposition one originated from folded down-warping,tention and compression,forming complex folded-down warping, tention and compression basins,the western region is slide-typed one,forming slide tention basins.The difference of regional geological setting determines the type and property of the sedimentary basins,and moreover,controlls the law and distribution of hydrocarbon migration,accumulation and the formation of reservoirs.So,there are genesis leakage and coupling relations between regional geological setting and hydrocarbon migration,accumulation and the formation of reservoirs.

关 键 词：区域地质背景 大陆边缘盆地类型 油气运聚规律 成藏耦合关系 南海北部 

分 类 号：TE122.1[石油与天然气工程—油气勘探]