Coalbed methane horizontal well hole collapse cave-building pressure relief developing system and method
作者： Jia Jinlong , Liu Changjiang , Huang Huazhou , Wang Ran , Cao Liwen
DOI:
关键词: Abrasive 、 Petroleum engineering 、 Wellhead 、 Displacement (fluid) 、 Stress (mechanics) 、 Mixing (process engineering) 、 Inlet 、 Coalbed methane 、 Completion (oil and gas wells) 、 Geology
摘要: The invention discloses a coalbed methane horizontal well hole collapse cave-building pressure relief developing system and method. An inlet of an abrasive mixing device in the separately communicates with liquid storage tank tank, outlet ground power device, communicateswith underground injection is positioned at position, near wellhead, section well. After chambering barefoot completion are completed, mixed fluid delivered to certain frequency through sprayed out so that pulsation excitation stress release structured realized, coal-liquid-gas mixture moves along space vertical hydraulic displacement. method can realize tectonic coal in-situ provide basis for realizing efficient continuous mining coalin-situ methane.
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