桑塔木地区三叠系深部地震薄储集层预测  

Seismic thin reservoir prediction in deep zones: a case study of Triassic Formation in Tarim Basin

作　　者：汪佳蓓[1] 黄捍东[2,3] 张文珠 

机构地区：[1]中国地质大学(北京)能源学院,北京100083 [2]中国石油大学(北京)油气资源与探测国家重点实验室,北京102249 [3]中国石油大学(北京)提高采收率研究院,北京102249 [4]中海石油深圳分公司研究院,广东广州510240

出　　处：《断块油气田》2016年第4期447-450,共4页Fault-Block Oil & Gas Field

基　　金：国家重点基础研究发展计划("973"计划)项目"深部有效碎屑岩储层成因机制与发育模式"(2011CB201104)

摘　　要：深部隐蔽油气藏逐步成为现阶段油气勘探的重难点,其具有埋深大、地震信号弱、构造复杂等特征。埋藏深度的增大使得地震反射信息量减少,识别储集层尤其是薄储集层的难度加大。文中采用地震相控非线性随机反演方法,融入测井和层序界面等地质类信息,对桑塔木油田三叠系近5 000 m埋深的薄储集层进行了钻前预测,成功刻画了深层薄储集层的纵横向连通性及平面展布特征。通过未参与反演井预测效果分析,少井反演与多井反演效果对比,预测吻合率统计分析和新钻井与预测结果对比等方面来评价本次地震资料储集层预测的可信度。预测结果与实钻情况吻合程度较好,说明该方法在深层薄储集层预测中有很好的应用前景。As the development of oil and gas exploration, people are gradually focusing on the prospecting of reservoir in deep zones. Seismic reflection information will decrease as the depth increases. The identification of reservoir especially thin-layer reservoir becomes much more difficult. In this paper, the seismic phase-controlled non-linear random inversion method is used to predict the Triassic Formation in Sangtamu Area, where depth is nearly 5000 m, before drilling by taking logging, geological information as constraints. The lateral connectivity and plane distribution characteristics in deep thin reservoir are successfully portrayed. Through the contrast of the inversion results in different constraints such as no drilled-well constraint and less well constraints, speed inversion profile characteristics are analyzed. With the new drilling information to authenticate the inversion results, which shows that the prediction coincides with the real drilling situation and the seismic prediction method has good creditability and applicability in the process of deep reservoir exploration and development.

关 键 词：深层 薄储集层 相控反演 桑塔木油田 

分 类 号：TE132.14[石油与天然气工程—油气勘探] P631[天文地球—地质矿产勘探]