- 专利标题： Simulation test system for gas extraction from tectonically-deformed coal seam in-situ by depressurizing horizontal well cavity
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申请号： US16757771申请日： 2018-11-12
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公开(公告)号： US11035228B2公开(公告)日： 2021-06-15
- 发明人: Shuxun Sang , Haiwen Wang , Xiaozhi Zhou , Liwen Cao , Shiqi Liu , Huihu Liu , Zicheng Li , Jinlong Jia , Huazhou Huang , Changjiang Liu , Hongjie Xu , Ran Wang , Shuyun Zhu
- 申请人： China University of Mining and Technology , XUZHOU OLIVINE GEOSCIENCE & GEOTECH CO., LTD , CHINA UNIVERSITY OF PETROLEUM, EAST CHINA , ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY , WUHAN INSTITUTE OF TECHNOLOGY
- 申请人地址： CN Jiangsu; CN Jiangsu; CN Shandong; CN Anhui; CN Hubei
- 专利权人： China University of Mining and Technology,XUZHOU OLIVINE GEOSCIENCE & GEOTECH CO., LTD,CHINA UNIVERSITY OF PETROLEUM, EAST CHINA,ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY,WUHAN INSTITUTE OF TECHNOLOGY
- 当前专利权人： China University of Mining and Technology,XUZHOU OLIVINE GEOSCIENCE & GEOTECH CO., LTD,CHINA UNIVERSITY OF PETROLEUM, EAST CHINA,ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY,WUHAN INSTITUTE OF TECHNOLOGY
- 当前专利权人地址： CN Jiangsu; CN Jiangsu; CN Shandong; CN Anhui; CN Hubei
- 代理机构： JCIPRNET
- 优先权： CN201810404469.X 20180428
- 国际申请： PCT/CN2018/114948 WO 20181112
- 国际公布： WO2019/205578 WO 20191031
- 主分类号： E21B49/00
- IPC分类号： E21B49/00 ; G06F30/20 ; E21B7/04 ; E21B47/06
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.