| 围压对岩心气体渗透率影响的试验研究 |
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| 引用本文： | 郭云尧.围压对岩心气体渗透率影响的试验研究[J].中国石油大学学报(自然科学版),1991(2). |
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| 作者姓名： | 郭云尧 |
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| 作者单位： | 石油大学开发系 |
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| 摘 要： | 岩心气体渗透率的测定结果表明,岩心的气体渗透率是围压的函数。随围压的增加,气体渗透率逐渐变小。围压对低渗透率岩心的影响比高渗透率岩心大得多。同时还表明,岩心的气体渗透率是不可逆的,从最高围压下逐次降压,渗透率逐渐变大,到一定大时且出现滞后现象。
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| 关 键 词： | 岩心分析 岩心 渗透率 围压 试验 |
EFFECT OF CONFINING PRESSURE ON GAS PERMEABILITY OF CORES |
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| Guo Yunyao.EFFECT OF CONFINING PRESSURE ON GAS PERMEABILITY OF CORES[J].Journal of China University of Petroleum,1991(2). |
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| Authors: | Guo Yunyao |
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| Affiliation: | Dept. of Petroleum Engineering |
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| Abstract: | The measurement of gas permeability of cores showed that gas permeability of core is a function of the confining pressure.Gas Permeability became lower with the increasing confining pressure.The effect of confining pressure on the cores with low permeability is much greater than that on the cores with high permeability.It also showed that the change of gas permeability was irreversible.The permeability increased gradually as the confining pressure declined and hysteresis came out at a certain value of permeability. |
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| Keywords: | Core analysis Core Permeability Confining pressure Experiment |
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