首页> 外国专利> SIMULATION TEST SYSTEM FOR GAS EXTRACTION FROM TECTONICALLY-DEFORMED COAL SEAM IN-SITU BY DEPRESSURIZING HORIZONTAL WELL CAVITY

SIMULATION TEST SYSTEM FOR GAS EXTRACTION FROM TECTONICALLY-DEFORMED COAL SEAM IN-SITU BY DEPRESSURIZING HORIZONTAL WELL CAVITY

机译:减压水平井腔原位抽采构造变形煤层气模拟试验系统

摘要

A simulation test system for gas extraction from a tectonically-deformed coal seam in-situ by depressurizing a horizontal well cavity. A coal series stratum structure reconstruction and similar material simulation subsystem simulates a tectonically-deformed coal reservoir. A horizontal well drilling and reaming simulation subsystem constructs a U-shaped well in which a horizontal well adjoins a vertical well, and performs a reaming process on a horizontal section thereof. A horizontal well hole-collapse cavity-construction depressurization excitation simulation subsystem performs pressure-pulse excitation and stress release on the horizontal well, and hydraulically displaces a coal-liquid-gas mixture such that the mixture is conveyed towards a vertical well section. A product lifting simulation subsystem further pulverizes the coal and lifts the mixture. A gas-liquid-solid separation simulation subsystem separates the coal, liquid and gas. A monitoring and control subsystem detects and controls the operation and the execution processes of equipment in real time.
机译:通过对水平井腔减压,从构造变形的煤层中抽气的模拟测试系统。煤系地层结构重建和相似材料模拟子系统模拟了构造变形的煤藏。水平井钻井和扩孔模拟子系统构造了U形井,其中水平井与垂直井相邻,并对水平井进行扩孔处理。水平井孔塌陷腔构造减压激励模拟子系统在水平井上执行压力脉冲激励和应力释放,并以液压方式置换煤-液-气混合物,从而将混合物输送到垂直井段。产品提升模拟子系统进一步粉碎煤并提升混合物。气液固分离模拟子系统分离煤,液和气。监控子系统实时检测和控制设备的运行和执行过程。

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