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Origin and geological control of desorbed gas in multi-thin coal seam in the Wujiu depression, Hailar Basin, China
To understand the natural gas characteristics of multi-thin coal seam, this study selected the desorbed gas of coal seams in different layers of Well...
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Geochemical characteristics of produced fluids from CBM wells and their indicative significance for gas accumulation in Daning-Jixian block, Ordos Basin
The Daning-Jixian block, the eastern edge of the Ordos Basin, is one of the most potential areas for CO 2 geological storage, enhanced coalbed methane...
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Multi-stage gas diffusion and its implications for the productivity of coalbed methane in the southern Qinshui Basin, north China
The behavior of coalbed methane (CBM) diffusion considerably influences gas productivity. Based on the multi-porous diffusion model and on-site CBM...
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Evolution and Evaluation of Coal-bed Methane in Cambay Basin, Western India: Insights from Stable Isotopic and Molecular Composition
Owing to a rapid rate of depletion of conventional energy resources and to keep pace with the ever increasing energy demand, scientists all over the...
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Quantification of Gas Transport Behavior During Coalbed Methane Extraction in A Coal Seam Considering a Dual-Porosity/Single-Permeability Model
Due to the inherent deposition environment and extraction challenges in a coal seam, quantification of its gas transport behavior serves as the...
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Multiscale Transport Characteristics of Coalbed Methane in Abandoned Mines and Its Applications in Gas Recovery
A considerable amount of coalbed methane (CBM) that can be extracted by surface vertical wells exists in gobs of abandoned mines. A model of CBM...
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Desorption Strain Kinetics of Gas-Bearing Coal based on Thermomechanical Diffusion–Seepage Coupling
The characteristics of coal desorption strain play a crucial role in coal permeability, coalbed methane (CBM) recovery, and the prevention of...
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Experimental Study on Gas–Water Seepage in High-Rank Coal and Its Research Significance
The gas–water seepage parameters of coal reservoir have to do with the development effect of coalbed methane (CBM) wells, and determine the output...
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Formation and Distribution of CBM Reservoirs
CBM reservoir is an unconventional natural gas reservoir with different characteristics from conventional natural gas reservoirs, especially the...
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Effects of Various Depressurization Paths on Desorption Deformation and Gas Production of Medium-Rank Coal in Qinshui Basin
A combination of physical and numerical simulations is employed to compare the differences in desorption deformation and desorption volumes of coal...
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Genesis and Criteria of CBM
Driven by the demand on industrialization, CBM resources have become an emerging and global hotspot field. A series of achievements and progresses...
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Modeling of Coalbed Gas Pressure/Content Identification Using Image Analysis
Coalbed gas pressure and content are fundamental parameters for mine gas recovery and disaster prevention. In response to the lengthy measurement...
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Oil Sands, Heavy Oil, Tight Oil/Gas, BCGAs and CBM
Unconventional reservoirs differ from conventional hydrocarbon reservoirs because of their poor matrix porosity and permeability and are...
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Research on Development Law of Deep Coalbed Gas Reservoirs at Eastern Edge of the Ordos Basin
The characteristics of deep coalbed methane development are significantly different from those of shallow ones. The development of deep coalbed...
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Experimental Study of Desorption and Seepage Characteristics of Single Gas and CO2–CH4 Gas Mixture in Coal
Understanding the desorption and seepage behaviors of CO 2 gas and CO 2 –CH 4 gas mixture in coal is important for CO 2 geological sequestration and...
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Coalbed methane desorption characteristics controlled by coalification and its implication on gas co-production from multiple coal seams
In this work, CH 4 isothermal adsorption measurements were carried out on 64 coal samples collected from western Guizhou Province of China, and the...
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Adsorption and desorption behavior under coal-water-gas coupling conditions of high- and low-rank coal samples
High- and low-rank coalbed methane (CBM) are both important fields of CBM development in China, but their formation and production mechanisms differ...
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Evaluation of infill well pattern based on the dynamic change of reservoirs during coalbed methane development
With the deepening of coalbed methane (CBM) exploration and development, the problem of low gas production has gradually become one of the main...
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Gas-in-place and its influence factors of the upper Paleozoic coal-bearing shale in the Qinshui Basin, China
Coal-bearing shale shows great potential for unconventional gas resources in China, while its exploration and development have been challenging for a...
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Mechanisms of Methane Displacement by CO2/N2 Injection in Tectonic Coal under Different Gas-Driving Modes
During underground gas injection in coal seams to displace coalbed methane, the injected gas spread toward coal fractures and macropores under...
