Cleats are natural opening-mode fractures in coal beds. They account for most of the
permeability and much of the porosity of coalbed gas reservoirs and can have a significant …

ABSTRACT The San Juan basin is the most prolific coalbed gas basin in the world with
1992 production exceeding 440 Gcf (12.4 billion m3), resources of approximately 50 Tcf (1.4 …

Coal, which contains more than 50% by weight and 70% by volume of carbonaceous
material including inherent moisture (Bates and Jackson, 1987), has been and remains the …

Beginning with its deposition on the earth's surface, and continuing throughout its burial
history, sedimentary organic matter undergoes progressive changes in composition and …

Gas content in coal is not fixed but changes when equilibrium conditions within the reservoir
are disrupted. Therefore, gas content distribution in coal varies laterally within individual …

The discovery and large-scale exploration of unconventional oil/gas resources since 1980s
have been considered as the most important advancement in the history of petroleum …

Coal bed methane (CBM) extraction has astounding effects on the global energy budget.
Since the earliest discoveries of CBM, this natural gas form has witnessed ever-increasing …

Permeability plays a significant role in the economic viability of coalbed methane (CBM)
development. In China, in situ permeability obtained from injection fall-off tests range from …

Geological and hydrological comparison of two United States coalbed methane basins, the
prolific San Juan Basin and the marginally producing Sand Wash Basin, indicates that coal …

This paper mainly focused on the genesis of coalbed methane (CBM), CO 2 origin and the
CBM accumulation mechanism in the southern Junggar Basin using a combination of …