墨西哥湾盆地盐岩及盐构造对油气控制作用  

The Control of Halite and Salt Structures on Hydrocarbons in Gulf of Mexico Basin

作　　者：孙意博 王长城[1] 施泽进[1] 

机构地区：[1]成都理工大学能源学院,四川成都610059

出　　处：《长江大学学报（自科版）（中旬）》2015年第7期12-16,3,共5页Journal of Yangtze University(Nature Science Edition)

摘　　要：墨西哥湾盆地属于拉张和被动大陆边缘相叠加的复合型盆地,在中侏罗世断裂拉张的构造条件和半封闭海的气候环境下形成了一套巨厚的芦安盐层。从白垩纪开始,持续的沉降为盐岩演化并形成一系列盐构造奠定了基础。结合盆地特征,系统阐述了该地区盐岩及其盐构造的类型、演化、成因,并且从影响烃源岩成熟,改善盐下层物性,成为封闭性好的盖层,提供烃类运移通道,形成有效圈闭等方面探讨了其对油气的生成、运移、聚集和储存所起到的控制作用。以期为我国渤海湾盆地。The Gulf of Mexico Basin was a composite basin which was an extension basin superimposing on passive continental margins.A set of Lu' an Salt Deposits were formed in the Middle Jurassic under the conditions of extension structure and climatope of semi-closed sea.Continuous sedimentation starting from Cretaceous laid a foundation for the evolution of halite and series of salt structures.In combination with the basin characteristics,the halite and its type,evolution and geneses of salt structures in this region were expounded in detail.It provides a channel of hydrocarbon migration from the aspects of the influence of source rock maturity,the improvement of sub-salt physical properties' as a cap rock with good sealing capacity.It provides guidance and reference for the related researches of Bohai Bay Basin and Jianghan Basin

关 键 词：墨西哥湾 拉张盆地 芦安盐层 盐构造 油气圈闭 

分 类 号：TE121.1[石油与天然气工程—油气勘探]