摘要
通过地震、钻井、岩心、测试等资料,对乍得BS区块的油藏特征进行了分析,研究结果表明,BS区块为扇三角洲沉积体系,油气来自于Mimosa凹陷P组烃源岩,油气富集受沉积演化和构造活动双重因素影响,在裂陷期沉积演化形成最优的生储盖成藏组合,后期区域应力反转对成藏破坏影响小,并促进了油气的运移。
Through data analysis such as seismic, drilling, core,testing data, and etc, the reservoir characteristics in Chad BS block were analyzed. The results indicate that the BS block belongs to the fan delta sedimentary system and the hydrocarbon is from P group of hydrocarbon source rock in Mimosa sag. Affected by dual factors of sedimentary evolution and tectonic activities, the optimal source–reservoir–seal association was formed in sedimentary evolution of rifting period, the late stress reversal effect on accumulation damage area is small, which promotes the oil and gas migration.
出处
《石油地质与工程》
CAS
2018年第3期33-36,共4页
Petroleum Geology and Engineering
基金
国家科技重大专项课题"海外重点风险项目勘探综合配套技术"(2011ZX05029–001)
关键词
乍得BS区块
岩性油藏
油气富集规律
沉积演化
应力反转
Chad BS block
lithologic reservoir
oil accumulation regularity
sedimentary evolution
stress reversal
