System for extracting gas from tectonically-deformed coal seam in-situ by depressurizing horizontal well cavity

• Disigner of the Invention:Harrsion Huang,caoliwen,Perry,徐宏杰,刘会虎
• Note:黄华州,曹丽文,周效志,徐宏杰,刘会虎
• Type of Patent:国际
• State of Patent:专利撤回
• Application Number:201020155225.1
• Number of Inventors:6
• Service Invention or Not:no
• Application Date:2010-03-25
• Authorization Date:2010-12-22
• First Author:sangshuxun