| 复杂砂岩储层基于相控建模的渗透率计算方法 |
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| 引用本文： | 王晓畅,范宜仁,邓少贵.复杂砂岩储层基于相控建模的渗透率计算方法[J].物探化探计算技术,2008,30(6). |
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| 作者姓名： | 王晓畅 范宜仁 邓少贵 |
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| 作者单位： | 中国石油大学,地球资源与信息学院,山东,东营,257061 |
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| 基金项目： | 中石油集团公司资助项目，山东省自然科学基金 |
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| 摘 要： | 渗透率是油气储层评价的主要参数之一,复杂砂岩的储层岩性复杂,非均质性强,应用常规方法建立渗透率模型精度低,不能满足开发后期的需要。鉴于岩性对渗透率的影响作用,采用相控建模方法来计算渗透率,以能够反映岩性特征的测井参数作为划相参数。应用K~均值聚类法,进行测井相分析,依据岩性建立不同的渗透率模型,其相关性明显高于常规方法建立的渗透率解释模型,经计算得到的渗透率更接近于岩心分析数据。通过实际资料处理结果表明,经相控建模计算的渗透率方法,有效提高了渗透率计算精确度。
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| 关 键 词： | 复杂砂岩 渗透率 岩性 测井相 K~均值聚类法 |
Method of permeability model of complicated sand reservoirs based on facies-controlled modeling |
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| WANG Xiao-chang,FAN Yi-ren,DENG Shao-gui.Method of permeability model of complicated sand reservoirs based on facies-controlled modeling[J].Computing Techniques For Geophysical and Geochemical Exploration,2008,30(6). |
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| Authors: | WANG Xiao-chang FAN Yi-ren DENG Shao-gui |
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| Abstract: | Permeability is one of the main parameters for reservoir evaluation.Complicated sand reservoir was character in complex lithology and heterogeneity.The precision of traditional permeability method was too low to further development.Facies-controlled modeling method based on lithology is used to compute permeability because lithology had a large effect on permeability.The logging-face was divided with K-means clustering method and logging-face dividing parameters which can reflect lithologic characteristic.The permeability models are generated based on lithological types.Their correlations were better than the traditional permeability model's.The permeability calculated was more close to core analysis data.Data processing result indicated that the accuracy of permeability evaluation is quality improved with facies-controlled modeling method |
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| Keywords: | complicated sand reservoir permeability lithology logging-face K-means clustering method |
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