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首页> 外文会议>I中俄测井国际学术交流会; 200611; 三亚(CN) >Application Evaluation Of Gas Saturation Model for the Deep Igneous Formation in Xu Jia Wei Zi Block
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Application Evaluation Of Gas Saturation Model for the Deep Igneous Formation in Xu Jia Wei Zi Block

机译：徐家围子区块深部火成岩气饱和模型的应用评价

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摘要

On the basis of the characteristics of the deep igneous formation in Xu Jia Wei Zi block, full-diameter core experiments under simulative formation conditions were done to find out the relationship between the lithologic and electrical properties. It's proved that Archie saturation equation is applicable when the porosity is more than 10 p.u., whereas it doesn't suit when the porosity is below 10 p.u.. By analysis of the laboratory data, the optimum Sw-I relationship is determined and a gas saturation model for the deep igneous formation in Xu Jia Wei Zi block is set up. Compared with corresponding laboratory core analysis data, the mean absolute error of the gas saturation determined by the model for two sealing core drilled wells is less than 10%. A chart for fluid identification is formed based on above-mentioned experiments and its application in reinterpretation of the twenty-seven exploratory wells, aiming at the deep formation of Xu Jia Wei Zi block for the past two years, gets a favorable result.
机译：根据徐家围子区块深部火成岩的特征，在模拟地层条件下进行了全直径岩心实验，以寻找岩性与电性之间的关系。证明了当孔隙度大于10 pu时可以应用Archie饱和方程，而当孔隙度小于10 pu时不适合使用Archie饱和方程，通过对实验室数据的分析，确定了最佳的Sw-I关系式和气体饱和度。建立了徐家围子块深部火成岩模型。与相应的实验室岩心分析数据相比，该模型确定的两个密封岩心钻探井的天然气饱和度的平均绝对误差小于10％。在上述实验的基础上，形成了流体识别图，并将其应用在二十七口探井的解释中，针对近两年徐家围子区块的深部成藏，取得了良好的效果。

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