博格斯盆地深水挤压盐构造识别与圈闭落实关键技术及应用  

Application of interpretation technology of salt-related trap in deepwater compression area offshore Burgos Basin,Mexico

作　　者：孔国英 李爱山 朱钇同 张量 赵晨露 丁鹏程 KONG Guoying;LI Aishan;ZHU Yitong;ZHANG Liang;ZHAO Chenlu;DING Pengcheng(CNOOC International Ltd.,Beijing 100028,China)

机构地区：[1]中国海洋石油国际有限公司,北京100028

出　　处：《海洋地质前沿》2022年第8期77-85,共9页Marine Geology Frontiers

基　　金：中国海洋石油有限公司“十四五”重大科技项目““两岸一带”重点区油气勘探评价关键技术”(KJGG2022-0902)。

摘　　要：墨西哥湾油气资源非常丰富,与盐岩形变相关的圈闭的落实是该区勘探的主要难题,亟待形成一套有效的盐构造识别与圈闭落实技术。以墨西哥博格斯盆地深水区为研究靶区,利用地震、钻井和重力资料,从盐岩的岩石物理性质出发,根据浅层异地盐岩、深层原地盐岩岩、盐岩流动通道和围岩的地震反射特征,总结形成了一套以双层盐岩构造识别为核心的圈闭落实关键技术组合,主要包括:双层盐岩构造雕刻与分析技术、基于地震-物模的多信息断裂解释技术、基于标志层约束的全三维层位解释技术、基于处理解释一体化的盐模型判别技术。应用该项技术组合,完成了研究区多个重点目标的精细落实,其中A圈闭钻探证实构造落实可靠。形成的技术体系也可为其他含盐盆地的盐相关构造解释和分析提供参考。The Gulf of Mexico is famous for its rich oil and gas resources.Salt related trap verification is the key issue in basin exploration.Therefore,it is necessary to establish an effective comprehensive interpretation techno-logy.Taking Burgos Basin as the research area,based on seismic,well-logging,and gravity data,the petrophysic-al properties of salt was studied,after which a set of key technology for salt-related trap interpretation was sum-marized considering the seismic reflection characteristics of shallow allochthonous salt,deep autochthonous salt,salt feeder,and surrounding formation The technological package includes double-layer salt identification and analysis technology,multi information fault interpretation technology based on seismic and physical model,full 3D horizon interpretation technology based on marker horizon constraint,and salt model discrimination techno-logy based on the integration of processing and interpretation.By applying the technology set,several key targets were interpreted accurately,which is proved by drilling at the A trap with an oil discovery.Therefore,the multi-technology approach can be used as a reference to salt-related trap interpretation and analysis in other similar salt basins.

关 键 词：博格斯盆地 双层盐构造 圈闭落实 处理解释一体化 

分 类 号：P744.4[天文地球—海洋科学]