| 姚同玉*,李继山.砂砾岩油藏渗透系数研究[J].实验力学,2011,26(4):437~441 |
| 砂砾岩油藏渗透系数研究 |
| On the Permeability Coefficient of Glutenite Reservoir |
| 投稿时间：2010-12-22 修订日期：2011-04-19 |
| DOI： |
| 中文关键词: 砂砾岩油藏 渗透率 孔隙度 孔隙结构 含水率 |
| 英文关键词:glutenite reservoir permeability porosity pore structure water cut |
| 基金项目:国家973"物理化学渗流特征和规律研究"(项目编号2005CB221304)，中石油股份重大先导课题《新疆砾岩油藏聚合物驱提高采收率机理研究》 |
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| 中文摘要: |
| 为了掌握砂砾岩油藏渗流规律，基于砂砾岩中砾和砂含量及其排列方式不同，开展了理论和实验研究。把砂砾岩孔隙度和渗透率设为砾、砂含量的函数，再基于Kozeny-Carman方程建立渗透率与孔隙度和颗粒粒径的函数关系。研究表明，砂砾岩组成及颗粒排列方式是控制砂砾岩渗透系数的主要因素，砂砾岩渗透率与孔隙度为一种线性关系。水驱油实验进一步表明，束缚水饱和度依赖于砂、砾含量，含水上升快，揭示了砂砾岩油藏特有的渗流特点。 |
| 英文摘要: |
| In order to understand the seepage rule of glutenite reservoir, theoretical and experimental investigation was carried out based on the content proportion of sand and pebble-size grain and packing state in rock. Setting the porosity and permeability of sandy conglomerate as a function of sand and pebble-size grain content, then a function related the porosity and permeability with grain size was established based on Kozeny-Carman equation. Results show that the relative proportions of sand and pebble-size grain and packing state are the main factors controlling the permeability coefficient of glutenite reservoir. There is a linear relationship between the permeability and porosity in glutenite reservoir. Results of water drive test further indicate that connate water saturation depends on the relative proportions of sand and pebble-size grain and water cut rises quickly, which display the particular permeability characteristics in glutenite reservoir. |
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