| 低闭合油藏油水同层储层含水饱和度新模型 |
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| 引用本文： | 王敏,孙建孟,赖富强,于华伟. 低闭合油藏油水同层储层含水饱和度新模型[J]. 西南石油学院学报, 2010, 32(1) |
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| 作者姓名： | 王敏 孙建孟 赖富强 于华伟 |
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| 作者单位： | 中国石油大学(华东)地球资源与信息学院,山东,东营,257061 |
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| 摘 要： | G地区P油层由于闭合高度低,油水分异差,存在大量的油水同层,且该区油水同层与油层的物性、电性相近,使得传统的利用电阻率和孔隙度计算含水饱和度的方法失效;加上工区开发过程中采取多层合试,单层试油且产液性质为油水同出的层位较少,可供选择进行油水同层饱和度建模的样本较少,使得该区油水同层饱和度的准确计算成为储量提交的难点.针对这一问题,提出以少量的密闭取芯井为基础样本,首先应用相渗资料建立起产水率与含水饱和度关系,然后外推到常规取芯井获得含水饱和度的补充样本,进而通过优选孔隙度、电阻率比值等建模参数,构建了适用于研究区油水同层的饱和度计算新模型,通过统计,其平均相对误差仅为3.59%,满足了储量计算的精度要求.
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| 关 键 词： | 油水同层 相渗曲线 饱和度模型 密闭取芯 产水率 |
A NEW WATER SATURATION MODEL FOR NON-NET PAY IN LOW CLOSURE RESERVOIR |
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| WANG Min,SUN Jian-meng,LAI Fu-qiang,YU Hua-wei. A NEW WATER SATURATION MODEL FOR NON-NET PAY IN LOW CLOSURE RESERVOIR[J]. Journal of Southwest Petroleum Institute, 2010, 32(1) |
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| Authors: | WANG Min SUN Jian-meng LAI Fu-qiang YU Hua-wei |
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| Affiliation: | WANG Min,SUN Jian-meng,LAI Fu-qiang,YU Hua-wei(College Geo-resources , Information,China University of Petroleum,Dongying Sh,ong 257061,China) |
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| Abstract: | There is great deal of oil and water existing in the same bed because of lower closure and poorer oil and water separation in P pay zone,G area,and there are similar physical and electrical properties between the bed containing both water and oil and the pay zone,the common method calculating water saturation by resistivity and porosity is ineffective,and also,in the process of development in the area,multi-bed testing is applied,the beds that liquid production is both oil and water are fewer,the samples th... |
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| Keywords: | oil and water in the same bed phase permeability curve saturation model pressure tight coring water productivity |
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