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OALib Journal期刊
ISSN: 2333-9721
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煤层气储层流固耦合数学模型
Keywords: 煤层气,流固耦合,有效应力原理,应力场,渗流场
Abstract:
？基于多孔介质及terzaghi有效应力原理，建立煤层气开采中煤岩骨架本构模型，分析煤岩骨架的应力形变；同时，建立了孔隙度与渗透率的动态模型，分析煤层气排采过程中煤层物性的变化；依据流体力学连续性方程，建立煤层流体的渗流场方程。结合模型的辅助方程及定解条件，给出了单相（多相)煤岩流固耦合渗流的数学模型。
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