加蓬海岸盆地北次盆A区块盐构造特征  

Salt tectonic chracteristics of block-A in Gabon coastal basin North sub-basin

作　　者：饶轶群[1] 颜亦卿[1] 王莉莉[1] 

机构地区：[1]中国石化华东分公司石油勘探开发研究院,江苏南京210011

出　　处：《油气藏评价与开发》2012年第5期15-20,共6页Petroleum Reservoir Evaluation and Development

摘　　要：A区块内发育一系列的盐构造,盐构造与油气成藏关系密切。利用钻井和地震资料研究认为,A区块主要发育4种盐构造类型:龟背构造,棱形底辟,大型底辟和盐滚构造。在盐构造相关的各类圈闭中,棱形底辟相关各类圈闭油气最富集,其次是龟背构造相关圈闭。盐构造影响烃源岩分布、圈闭形成和分布及储层分布,同时盐构造活动提供油气运移通道。A series of salt tectonic are developed in block-A. Salt tectonic has close relationship with hydrocarbon accumulation. According to the researches by using drilling and seismic data, four types of salt tectonic can be distinguished in block-A： turtles, prismatic diapirs, large diapirs and salt rolling tectonic. Different kinds of prismatic diapirs related traps are the richest in hydrocar- bon accumulation. Turtles related traps follow. Salt tectonics affect distribution of hydrocarbon mother rocks, traps and reservoirs, along with the foramtion of traps. Meanwhile, salt tectonic activities provide migration pathways.

关 键 词：盐构造 油气成藏 勘探潜力 

分 类 号：TE121.1[石油与天然气工程—油气勘探]