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Application of Petrophysical Modeling Technique in Favorable Reservoir Prediction in Western Slope of Mahu Sag, Junggar Basin
Author(s): 
Pages: 720-725
Year: Issue:  6
Journal: Xinjiang Petroleum Geology

Keyword:  Junggar basinMahu sagBaikouquan formationpetrophysical modelingS-wave velocity estimationvp/vs ratioreservoir prediction;
Abstract: 准噶尔盆地玛湖凹陷西斜坡下三叠统百口泉组为一套扇三角洲前缘砂砾岩沉积,常规的叠后波阻抗反演不能区分有效储集层和致密储集层,制约了井位部署和储量计算.通过已有测井资料弹性参数交会发现,纵横波速度比是区分致密储集层和有效储集层的有效弹性敏感参数.通过准确计算泥质含量、有效孔隙度及含水饱和度等参数,选择了合理的岩石物理模型,有效提高了横波速度估算精度,为研究区叠前弹性敏感参数反演提供了基础资料保障.在此基础上,优选纵横波速度比参数有效落实了有效储集层的分布,钻井成功率达到80%,为研究区井位部署及储量落实提供了依据.
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