| 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 |
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| 引用本文： | 王平,胡太平,谢恩,江杰,张敏,丁肇媛,齐凤林.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[J].海相油气地质,2016(3):72-78. |
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| 作者姓名： | 王平 胡太平 谢恩 江杰 张敏 丁肇媛 齐凤林 |
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| 作者单位： | 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 |
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| 基金项目： | 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) |
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| 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。
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| 关 键 词： | 塔里木盆地 碳酸盐岩储层 地震相 高效井轨迹 |
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 |
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| Abstract: | According to seismic, well logging and production data, the relationship between moniliform seismic-facies Ordovician carbonate reservoirs and efficient wells is studied in the west of Tazhong Uplift, Tarim Basin. It is proved that carbonate reservoirs mostly develop in those strong seismic-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 of fractured-vuggy system, and (4) the well trajectory of target zone at the tops of reservoirs. These are the important pre-requisites for keeping long period of high and stable yield. |
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| Keywords: | Carbonate reservoir Seismic facies Efficient well trajectory Tarim Basin |
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