元坝地区超深薄储层提高地震分辨率处理方法探讨  

Discussion on processing method for improving resolution of ultra-deep thin reservoir in Yuanba area

作　　者：齐中山 李文成[1] 袁茂林 苏建龙[1] 何鑫[1] QI Zhongshan;LI Wencheng;YUAN Maolin;SU Jianlong;HE Xin(Sinopec Exploration Company,Chengdu Sichuan,610041,China)

机构地区：[1]中国石化勘探分公司,四川成都610041

出　　处：《石油地质与工程》2021年第3期1-5,11,共6页Petroleum Geology and Engineering

基　　金：国家科技重大专项(2017ZX05036–005–006)资助。

摘　　要：元坝地区二叠系吴家坪-茅口组油气勘探潜力巨大,但吴家坪组-茅口组埋藏深、储层薄,常规地震处理成果难以分辨储层,为了精细刻画超深、超薄储层的特征,进行了提高分辨率处理方法研究。在叠前应用地表一致性预测反褶积、多道预测反褶积和Q体补偿的基础上,叠后针对目的层采用了基于压缩感知的提高分辨率技术,处理成果显示,吴家坪–茅口组分辨率高,信噪比高,滩相及岩溶特征清楚。Permian Wujiaping Maokou formation in Yuanba area has great potential for oil and gas exploration,but the Wujiaping Maokou formation is deeply buried and the reservoir is thin,so it is difficult to distinguish the reservoir with conventional processing results.In order to finely depict the characteristics of ultra-deep and ultra-thin reservoirs,the processing method for improving the resolution is studied.Based on the pre stack application of surface consistent prediction deconvolution,multi-channel prediction deconvolution and Q-body compensation,the post stack application of the resolution enhancement technology based on compressed sensing for the target layer shows that the Wujiaping Maokou formation has high resolution,high signal-to-noise ratio and clear beach facies and karst characteristics.

关 键 词：元坝地区 反褶积 Q体补偿 超深层 薄储层 

分 类 号：P631.4[天文地球—地质矿产勘探]