| 高煤级煤基质力学效应与煤储层渗透率耦合关系分析 |
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| 引用本文： | 傅雪海,秦勇,张万红.高煤级煤基质力学效应与煤储层渗透率耦合关系分析[J].高校地质学报,2003,9(3):373-377. |
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| 作者姓名： | 傅雪海 秦勇 张万红 |
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| 作者单位： | 中国矿业大学,资源与地球科学学院,徐州,221008 |
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| 基金项目： | 国家自然科学基金面上项目(编号: 40242012)及重点项目(编号:50134040)资助. |
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| 摘 要： | 基于吸附膨胀物理模拟实验，揭示了瘦煤至无烟煤阶段煤基质的自调节特征，分别探讨了煤层气排采过程煤基质收缩和有效应力变化对煤储层渗透率的影响，构建了有效应力、煤基质收缩与煤储层渗透率之间耦合的数学模型，揭示出高煤级煤储层渗透率在煤层气排采过程中的递减变化规律，并讨论了这一发现的地质意义。
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| 关 键 词： | 煤层气 煤基质 力学效应 煤储层 渗透率 |
| 文章编号： | 1006-7493(2003)03-373-05 |
Coupling Correlation Between High-rank Coal Matrix Mechanic Effect and Coal Reservoir Permeability |
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| FU Xue-hai,QIN Yong and ZHANG Wan-hong.Coupling Correlation Between High-rank Coal Matrix Mechanic Effect and Coal Reservoir Permeability[J].Geological Journal of China Universities,2003,9(3):373-377. |
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| Authors: | FU Xue-hai QIN Yong and ZHANG Wan-hong |
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| Abstract: | Based on the adsorbing-swelling experiments of coal samples, the self-adjusting effects of lean coal to antracite were revealed. Then, the influence of the effects on coal reservoir permeability was analysed and the coupling mathematical model between the effective-stress effect, coal-matrix shrinkage effect and permeability was established. The degressive rule of high-rank coal reservoir permeability during the coalbed methane recovery and the geological significance of the discovery were discussed. |
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| Keywords: | coalbed gas coal matrix mechanics effect coal reservoir permeability |
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