Gas extraction of coal seam roof fractured zone in China: A review
Chao Xu, Tong Qing Yang, Kai Wang, Qiang Fu, Shihao Ma
Topics & Concepts
RoofCoal miningExtraction (chemistry)Petroleum engineeringMining engineeringDrillingGeologyBoreholeNatural gasCoalbed methaneCurrent (fluid)Directional drillingCoalFracture (geology)Environmental scienceGeotechnical engineeringEngineeringCivil engineeringWaste managementMechanical engineeringChromatographyChemistryOceanographyCoal Properties and UtilizationRock Mechanics and ModelingMethane Hydrates and Related Phenomena