白音查干凹陷桑合地区油储地球物理特征研究  

Studies on reservoir geophysical characteristics in Sanghe Area,Baiyinchagan Depression,Inner Mongolia,China

作　　者：张亚敏[1,2] 

机构地区：[1]长安大学地球科学与国土资源学院,陕西西安710054 [2]西部矿产资源与地质工程教育部重点实验室,陕西西安710054

出　　处：《石油地球物理勘探》2009年第5期613-616,共4页Oil Geophysical Prospecting

基　　金：中石化"十条龙"重点科技攻关项目"中原油田复杂断块油藏提高采收率技术研究"(P01034)

摘　　要：利用地质、测井及地震资料,系统分析了白音查干凹陷陡坡带桑合地区都一段含油砂层组的储层地球物理特征。该区砂泥岩薄互层砂岩的阻抗特征不明显,单一的储层预测方法不能有效地进行储层预测。通过地震多属性分析、波阻抗反演,在地质规律的指导下采用多信息综合储层预测的方法对这种薄砂层进行了预测,砂体在地震多属性分析预测结果上有很好的反映,砂泥岩厚度的横向变化细节也刻画得非常好,预测结果与实钻资料比较吻合。2008年在近洼带预测目标上成功钻探了C35井,发现了富集区块,控制地质储量数百万吨,实现了高效勘探。Based on geological data,well logging data and seismic data,studies on reservoir geophysical characteristics were conducted in Du Formation first Sub-formation oil-bearing sand group in Sanghe Area,Baiyinchagan Depression.It is noticed in the studies that the impedance characteristics for the sand and mudstone interbedded thin reservoir are not distinctive,thus the single reservoir prediction method does not work for reservoir prediction.However by following the regional geology trends and based on seismic multi-attribute analysis and impedance inversion,the reservoir prediction for the sand and mudstone interbedded thin reservoir were carried out by using the integrated reservoir prediction method in which information from geology,seismic survey and well logging were utilized,the method works quite well,the sand body can be easily seen on the seismic multi-attribute analysis and prediction sections,the lateral lithology thickness changes for the sand and mudstone interbedded thin reservoir can be easily recognized as well,and the prediction results and the drilling matched well.In 2008 C35 well was drilled in the Depression and oil rich reservoir was found out,in the reservoir multi-million tons of crude oil reserve is secured,so the exploration endeavor in this area is quite successful and efficient.

关 键 词：属性分析 砂体类型 岩石物性 储层预测 白音查干凹陷 

分 类 号：P631[天文地球—地质矿产勘探] P618.130.2[天文地球—地质学]