低渗煤层气注热开采渗透规律研究
发布时间:2018-07-28 11:41
【摘要】:为分析低渗高储煤层注热开采时的渗透规律,通过实验室试验分析得出了山西许村煤矿3号煤在温度作用下渗透率发生巨变的渗透率临界阈值温度为350℃;通过理论分析得出了低渗储层注热开采的热-流-固数学模型,并基于该模型对热-流-固耦合作用下低渗储层注热开采的渗透规律进行了数值模拟研究,研究结果表明:随着注热时间的增加,储层渗透率也在不断的增大,当注热时间达到5 h时,储层渗透率较原始渗透率增加14倍左右,注热效果明显,5 h之后,注热对于储层渗透率的变化影响不大。
[Abstract]:In order to analyze the permeability law of low permeability and high reservoir coal seam during heat injection mining, the critical threshold temperature of permeability change in Xucun coal mine is 350 鈩,
本文编号:2150023
[Abstract]:In order to analyze the permeability law of low permeability and high reservoir coal seam during heat injection mining, the critical threshold temperature of permeability change in Xucun coal mine is 350 鈩,
本文编号:2150023
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