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考虑基质收缩影响的煤层气流动模型及应用 被引量:15

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摘要 基于表面物理化学原理,提出了考虑应变与煤基质收缩耦合影响的孔隙度和渗透率理论模型.在此基础上,建立了双重介质煤层气藏三维、非平衡吸附、拟稳态条件下气水两相流动数学模型.采用全隐式方法和正交极小化方法对模型进行了数值求解,并结合沁水盆地TL003井的生产实际进行了历史拟合.结果显示该井的渗透率随生产时间的推移呈现明显的改善趋势,但由于含水层的持续补给致使15#煤层迟迟达不到临界解吸压力,产水量却居高不下,因此建议封堵15#煤层只单独排采3#煤层.
出处 《中国科学(E辑)》 CSCD 北大核心 2008年第5期790-796,共7页 Science in China(Series E)
基金 国家高技术研究发展计划("863"计划)(批准号:2006AA06Z236) 国家重点基础研究发展计划("973"计划)(批准号:2002CB11708)
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参考文献15

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二级参考文献5

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共引文献52

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引证文献15

二级引证文献113

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