基于流固耦合的水力冲孔影响因素研究

张娇; 王筱冬

基于流固耦合的水力冲孔影响因素研究

张娇,
王筱冬

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- 发布日期: 2017-08-19

Study on Influencing Factors of Hydraulic Punching Based on Flow-solid Coupling Theory

摘要

摘要: 为了研究基于流固耦合的水力冲孔影响因素，采用Comsol Multiphysics的Solid module and Darcy module建立了煤层瓦斯应力渗流耦合模型，模拟研究了水力冲孔影响因素对煤层瓦斯抽采的作用效果。结果表明：有效影响半径与冲孔半径、抽放时间成正比，与初始瓦斯压力成反比；多孔抽放效果的有效半径明显大于单孔抽放效果。根据以上研究成果，不同煤层采取水力冲孔措施，需要依据实际煤层瓦斯地质条件，选择合适的冲孔半径、抽放时间参数，同时优化布孔方式，以达到最佳的抽放效果。
- 煤层瓦斯 /
- 流固耦合 /
- 水力冲孔 /
- 有效影响半径 /
- 瓦斯抽采 /
- 冲孔半径 /
- 抽放时间
Abstract: In order to study the influencing factors of hydraulic punching based on fluid-solid coupling, coalbed gas seepage stress coupling model was established by Comsol Multiphysics in Solid module and Darcy module, and the effect of hydraulic punching factors on coal seam gas drainage is studied. The results show that the effective radius is directly proportional to the punch radius and the drainage time, which is inversely proportional to the initial gas pressure, and the effective radius of porous drainage effect is obviously larger than that of the single hole drainage effect. According to the above research results, it is necessary to select the appropriate punching radius and time parameters of the coal seam based on the actual coal seam gas geological conditions, and optimize the arrangement of holes to achieve the best drainage effect.
- coal seam gas /
- flow-solid coupling /
- hydraulic flushing /
- effective influence radius /
- gas drainage /
- punch radius /
- drainage time

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参考文献(16)

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基于流固耦合的水力冲孔影响因素研究

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Study on Influencing Factors of Hydraulic Punching Based on Flow-solid Coupling Theory

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出版历程

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