| 注气开采煤层气增产机制的研究 |
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| 引用本文： | 吴世跃,郭勇义.注气开采煤层气增产机制的研究[J].煤炭学报,2001,26(2):199-203. |
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| 作者姓名： | 吴世跃 郭勇义 |
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| 作者单位： | 太原理工大学矿业工程学院, |
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| 基金项目： | 山西省自然科学基金!资助项目 (9910 2 8) |
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| 摘 要： | 依据扩散渗流和多组分吸附平衡理论，研究了注气开采煤层气的增产机制。研究表明，注气增加储层能量，提高储层压力传导系数并产生竞争吸附置换效应，从而提高煤层气开采时的单产量及回收率。中还导出了注气时回收率的计算公式。所得结论对注气开采煤层气设计的评价具有指导意义。
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| 关 键 词： | 煤层气 注气开采 增产机制 渗流速度 回收率 储层压力传导系数 |
| 文章编号： | 0253-9993(2001)02-0199-05 |
| 修稿时间： | 2000年12月5日 |
Study of the mechanism of increasing production of exploitation coal -bed methane by gas injection |
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| WU Shi-yue,GUO Yong-yi.Study of the mechanism of increasing production of exploitation coal -bed methane by gas injection[J].Journal of China Coal Society,2001,26(2):199-203. |
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| Authors: | WU Shi-yue GUO Yong-yi |
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| Abstract: | According to theory of diffusion and permeation,and theory of adsorption equilibrium of commixture gas,the mechanism of increasing coal bed methane production by gas injection is studied, with which it is illustrated for enhancing energy of storing gas stratum, heightening pressure conduction coefficient of storing gas stratum and binging domino effect of competition adsorption by gas injection, consequently yield and ratio of recovery of coal bed methane are also enhanced. The calculation formulas of ratio of recovery are deduced. These conclusions have guidance significance to exploitation coal bed methane by gas injection. |
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| Keywords: | coal bed methane exploitation by gas injection mechanism of increasing production |
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