JCIPRNET
Simulation test system for gas extraction from tectonically-deformed coal seam in-situ by depressurizing horizontal well cavity
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.
ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY XUZHOU OLIVINE GEOSCIENCE & GEOTEC CO., LTD. WUHAN INSTITUTE OF TECHNOLOGY CHINA UNIVERSITY OF PETROLEUM, EAST CHINA China University of Mining and Technology
E E E G E E
E21B E21B E21B G06F E21B E21B
inventional additional inventional inventional inventional inventional
Changjiang Huihu Haiwen Shuxun Liwen Xiaozhi Shiqi Jinlong Hongjie Shuyun Huazhou Ran Zicheng
Liu Liu Wang Sang Cao Zhou Liu Jia Xu Zhu Huang Wang Li