| 火山岩储层的应力敏感性分析 |
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| 引用本文： | 杨满平,郭平,彭彩珍,李莉. 火山岩储层的应力敏感性分析[J]. 大庆石油地质与开发, 2004, 23(2): 19-20 |
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| 作者姓名： | 杨满平 郭平 彭彩珍 李莉 |
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| 作者单位： | 西南石油学院,四川,成都,610500;大庆油田有限责任公司,勘探开发研究院,黑龙江,大庆,163712 |
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| 摘 要： | 为探索火山岩油气藏的开发方法，在常规实验的基础上分析了火山岩储层物性随应力改变的变化规律，与一般的沉积岩一样，随着净上覆岩层压力的升高，火山岩的孔隙度、孔隙压缩系数和渗透率都具有下降的趋势：实验结果表明，流纹岩孔隙度的下降幅度在5％～22％之间；而渗透率的下降范围在6％～19％之间，明显要低于一般的沉积岩。因此，流纹岩的应力敏感性是不明显的。
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| 关 键 词： | 火山岩 流纹岩 应力敏感性 孔隙度 渗透率 压缩系数 |
| 文章编号： | 1000-3754(2004)02-0019-02 |
| 修稿时间： | 2003-07-01 |
Analysis of stress sensitivity for volcanic rock reservoir |
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| YANG Man-ping,et al.. Analysis of stress sensitivity for volcanic rock reservoir[J]. Petroleum Geology & Oilfield Development in Daqing, 2004, 23(2): 19-20 |
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| Authors: | YANG Man-ping et al. |
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| Abstract: | As a special reservoir, volcanic rock reservoir has special pore structure, flow law in the pore, and so on. Like other general sedimentation rocks, volcanic rock ' s porosity, pore compressibility factor and permeability drop with the increase of net o-verburden pressure. Result of experimentation indicates that rhyo-lite' s porosity drop ranges between 5% and 22% , and rhyolite' s permeability drop ranges between 6% and 19% , which are less than the general sedimentary rock' s. The stress sensitivity of rhyolite rock reservoir isn' t evident. |
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| Keywords: | volcanic rock rhyolite stress sensitivity porosity permeability compressibility factor |
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