| 固相颗粒在分形多孔介质中运移的网络模拟 |
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| 引用本文： | 张玮,张宁生.固相颗粒在分形多孔介质中运移的网络模拟[J].西安石油大学学报(自然科学版),2000,15(2):14-17. |
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| 作者姓名： | 张玮 张宁生 |
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| 作者单位： | 西安石油学院石油工程系,陕西,西安,710065 |
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| 基金项目： | 国家自然科学基金!资助 (课题编号 598740 2 0 ) |
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| 摘 要： | 孔隙结构分布特征是影响固相颗粒在多孔介质中运移沉降规律的关键因素 .油藏砂岩孔隙大小分布在一定标度范围内具有统计自相似性 .采用地层砂岩压汞资料 ,通过对微分汞饱和度与孔隙半径进行对数回归来估计孔隙大小分布分维 ,并用三维多段组合式网络模型对注入颗粒在不同分维的多孔介质中运移沉降造成渗透率下降的规律进行了模拟研究 .探讨了颗粒运移沉降对地层伤害的程度和孔隙大小分布分维之间的关系 .
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| 关 键 词： | 固相 颗粒 多孔介质 孔隙结构 网络 地层损害 |
| 文章编号： | 1001-5361(2000)02-0014-04 |
| 修稿时间： | 1999-11-15 |
Network Modeling of the Migration of Solid Particles in Fractal Porous Media |
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| ZHANG Wei,ZHANG Ning-sheng.Network Modeling of the Migration of Solid Particles in Fractal Porous Media[J].Journal of Xian Shiyou University,2000,15(2):14-17. |
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| Authors: | ZHANG Wei ZHANG Ning-sheng |
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| Abstract: | The pore size distribution of porous media is a main factor affecting the subsidence law of solid particles in the process of migration. There is a statistical selfsimilar character in the pore size distribution of reservoir sandstone in a certain range of scale. In this paper, the logarithms of differential mercury saturation and pore radius are regressed to estimate the fractal dimension value of pore size distribution according to the mercury data of sandstone, A 3D fivesection combinative pore network model is used to simulate the migration and subsidence trend of the solid particles in porous media with different fractal dimension. The relationship between the fractal dimension of the pore size distribution and the formation damage degree caused by solid particle transport and subsidence is discussed. |
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| Keywords: | solid phase grain porous media pore structure network formation damage |
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