id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ajst-30934	Wu, Yilin	Coalbed Methane (CBM) Extraction: Techniques, Challenges, and Environmental Considerations	2025	3	.pdf	application/pdf	2122	127	32	Introduction Coalbed methane (CBM), also known as coal seam gas (CSG), is a form of natural gas trapped within coal seams. Hydraulic Fracturing (Fracking) Hydraulic fracturing has emerged as a critical technology for developing low-permeability coalbed methane reservoirs, particularly those with permeabilities below 1 millidarcy and at depths exceeding 1,000 meters where natural fracture networks are insufficient for economic gas production.	cache/ajst-30934.pdf	txt/ajst-30934.txt