碳酸盐岩串珠状地震相储层自身要素研究及高效井轨迹优化——以塔里木盆地塔中西部奥陶系为例  

Characteristics Study of Moniliform Seismic Facies and Optimization for Efficient Well Trajectory in Carbonate Reservoirs:A Case of Ordovician Reservoirs in the West of Tazhong Uplift, Tarim Basin

作　　者：王平[1] 胡太平[1] 谢恩[1] 江杰[1] 张敏[1] 丁肇媛 齐凤林[2] Wang Ping;Hu Taiping;Xie En;Jiang Jie;Zhang Min;Ding Zhaoyuan;Qi Fenglin

机构地区：[1]中国石油塔里木油田公司勘探开发研究院 [2]中国石油塔里木油田公司塔中项目经理部

出　　处：《海相油气地质》2016年第3期72-78,共7页Marine Origin Petroleum Geology

基　　金：国家科技重大专项"塔里木盆地海相碳酸盐岩油气资源潜力;有利区带评价与目标优选"(项目编号:2011ZX05004004)资助

摘　　要：综合利用地震、钻井、测井及开发动态等资料,研究了塔里木盆地塔中西部地区高效井与串珠状地震相储层的关系。提出了峰谷能量指数的概念,指数越大,串珠状地震相储层越发育。若强串珠状地震相发育伴生断裂,则储层发育规模较大;串珠状地震相位于缝洞系统的相对高部位,则一般油柱高度大,有较长的无水采油期。对于强串珠状地震相,水平井水平段轨迹设计在最大波谷处较为合适;对于弱串珠状地震相,水平井水平段轨迹设计在最大波谷之下的零相位之上较为合适。塔中西部实际应用结果表明,具备四项要素(峰谷能量指数大于17 000、伴生断裂发育、处于缝洞体系高部位、目的层井轨迹位于储层顶部)的强串珠状地震相储层,钻井易高产稳产。According to seismic, w ell logging and production data, the relationship between m oniliform seismic-faciesOrdovician carbonate reservoirs and efficient wells is studied in the west o f Tazhong U plift, Tarim Basin. It is provedthat carbonate reservoirs mostly develop in those strong seism ic-facies beads that is characterized by the basic factors:(1) peak to trough amplitude index more than 17000, (2) developing associated faults, (3) in relatively high locations o ffractured-vuggy system, and (4) the well trajectory o f target zone at the tops o f reservoirs. These are the important prerequisitesfor keeping long period o f high and stable yield.

关 键 词：塔里木盆地:碳酸盐岩储层:地震相:高效井轨迹 

分 类 号：TE122.2[石油与天然气工程—油气勘探]