Simulation test method for gas extraction from tectonically-deformed coal seam in-situ by depressurizing horizontal well cavity

• School Sign:第一单位
• Disigner of the Invention:刘长江,徐宏杰,wangran,zhushuyun,Perry,caoliwen,Liu Shiqi,王海文,刘会虎,李自成,贾金龙,Harrsion Huang
• Type of Patent:国内
• State of Patent:专利授权
• Application Number:2018420472
• Service Invention or Not:no
• Application Date:2018-11-22
• Authorization Date:2021-03-19
• First Author:sangshuxun