Results 81 to 90 of about 16,144,632 (222)
, 2023 Coalbed water is a semi-open system connecting underground coalbeds with the external environment. Microorganisms in coalbed water play an important role in coal biogasification and the carbon cycle.
Shouchao Lai (14596382) +4 more
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Methane emission rate studies in a northern West Virginia mine [PDF]
"Methane emission rates were studied in a Pittsburgh coalbed mine in northern West Virginia. A fullface boring-type continuous miner, equipped with a methane monitor, was used in the development of a set of eight main headings, one side of which was near
core
Numerical simulation of hydraulic fracturing coalbed methane reservoir
, 2014 Some coal seam is well known for its three low characteristics: low permeability, low reservoir pressure and low gas saturation. Thus stimulation measures must be taken during coalbed methane development stage to enhance its recovery.
Zhang, Jingchen
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, 2023 Coalbed water is a semi-open system connecting underground coalbeds with the external environment. Microorganisms in coalbed water play an important role in coal biogasification and the carbon cycle.
Shouchao Lai (14596382) +4 more
core +1 more source
Youqicang pingjia yu kaifa, 2022 Finding out the hydrogeological conditions and it’s controlling gas effects of CBM（coalbed methane） development area is important, which can provide a foundation for further development well location deployment. Taking the No.15 coal seam of Songta Block
WANG Wensheng +4 more
doaj
Methane emission characteristics and model of coalbed methane wells in coal mining area
Meikuang Anquan, 2022 Coalbed methane (CBM) development in coal mining area has good safety, economic and energy benefits, but methane emission is common in surface well sites. In view of this, taking the CBM wells in Qinshui County of Shanxi Province as an example, the methane emission location and emission volume of CBM wells are obtained, and the prediction model of ...
MI Baichao +4 more
openaire +1 more source
The Optimization of Well Spacing in a Coalbed Methane Reservoir
, 2012 Numerical reservoir simulation has been used to describe mechanism of methane gas desorption process, diffusion process, and fluid flow in a coalbed methane reservoir.
Sinurat, Pahala Dominicus
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Economic analysis of vertical wells for coalbed methane recovery [PDF]
, 1981 Previous economic studies of the recovery and utilization of methane from coalbeds using vertical wells were based on drainage in advance of mining where a single seam is drained with well spacing designed for rapid predrainage. This study extends the earlier work and shows that methane recovery costs can be reduced significantly by increasing well ...
openaire +2 more sources
Pressure monitoring and observed effects of mining at the Oak Grove, AL, coalbed degasification pattern [PDF]
"The U.S. Bureau of Mines and the United States steel corporation evaluated the progress of methane drainage at the Oak Grove, Alabama, degasification pattern. Coalbed pressures were monitored between December 1981 and November 1985. Formation pressures,
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Methane emission from U.S. coal mines : a survey [PDF]
This survey was conducted to determine the magnitude of the methane emission and control problem in U.S. bituminous coal mines. The resultant data indicate that the emission rate for any given coalbed depends primarily on the coal production rate and on ...
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