METHOD FOR GAS EXTRACTION ALTERNATING OSCILLATING

专利名称：METHOD FOR GAS EXTRACTION

ALTERNATING OSCILLATING PULSE HIGHENERGY GAS EXTRACTION WITH THERMALINJECTION

发明人：Baiquan LIN,Quanle Zou,Ting Liu,Chang

Guo,Chuanjie Zhu,Jia Kong,Fazhi Yan,HaoYao,Yidou Hong

申请号：US153211申请日：20151222

公开号：US20180209259A1公开日：20180726

专利附图：

摘要：A gas extraction method in which high energy gas fracturing technology is usedto form a fracture network in a thermal injection borehole. Then high-pressure, cyclicallytemperature-changing steam is injected into the borehole using a spinning oscillating-pulse jet nozzle to form oscillating superheated steam, alternatingly impacting andheating the coal body. The high energy gas forms a fracture network that provideschannels for passage of the superheated steam, while oscillating changes in steamtemperature and pressure also promote crack propagation and perforation of the coalbody; the combined effect of alternation of the two enhances gas desorption andextraction efficiency.

申请人：CHINA UNIVERSITY OF MINING AND TECHNOLOGY

地址：Jiangsu CN

国籍：CN

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