| 裂缝性低渗透气藏的应力敏感性室内研究 |
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| 引用本文： | 汪枫,孙雷,李松林. 裂缝性低渗透气藏的应力敏感性室内研究[J]. 内蒙古石油化工, 2009, 34(6) |
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| 作者姓名： | 汪枫 孙雷 李松林 |
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| 作者单位： | 西南石油大学气藏实验室;国家开发银行企业局 |
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| 摘 要： | 裂缝性低渗透油气藏在开发过程中存在明显的应力敏感现象,本文中采用变围压的室内试验方法对裂缝性低渗岩石的孔隙度、渗透率进行了实验和分析,以研究在裂缝性低渗气藏中岩石孔隙度、渗透率与有效应力之间的关系。实验结果表明:岩石的孔隙度和渗透率随有效应力的增加而呈规律性减小,并且发生了不可逆的应力损害。岩石表现出极强的应力敏感性。
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| 关 键 词： | 低渗透油气藏 应力敏感 孔隙度 渗透率 应力敏感指数 |
Laboratory Study on Stress Sensitivity of Fractured Reservoir with Low Permeability |
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| WANG Feng,SUN Lei,LI Song-lin. Laboratory Study on Stress Sensitivity of Fractured Reservoir with Low Permeability[J]. Inner Mongulia Petrochemical Industry, 2009, 34(6) |
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| Authors: | WANG Feng SUN Lei LI Song-lin |
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| Affiliation: | 1.Laboratory of gas; South-West Petroleμm University; Chengdu; 610500; Sichuan; 2.Large Corporate Lending Department of China Development Bank; Beijing; 100037; China); |
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| Abstract: | There exists obvious stress-sensitive in the development of fractured low permeability reservoirs.Variable peripheral pressure,which is the laboratory test method,is used in this article to carry on the experiments and analyses upon porosity and permeability of fractured reservoir with low permeability to investigate the laws between the porosity,permeability of rock and the effective pressure.It is proved by experiments that the porosity and permeability of rock will drop regularly along with the increasin... |
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| Keywords: | Low permeability reservoir Stress sensitivity Porosity Permeability Stress sensitive coefficient |
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