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Coalbed methane in Wyoming (second revision)

, 2004
Coalbed methane in Wyoming (second ...
R.M. Lyman (10071331), L.W. Cook (10072057), R.W. Jones (10069903), R.H. De Bruin (10069879)   +3 more
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Key experimental technologies and their development directions for the exploration and production of deep coalbed methane

Meitian dizhi yu kantan
ObjectiveDeep coalbed methane (CBM) production enjoys advantages including rapid gas shows, high single-well yield, and continuous resource distribution, which establish deep CBM as a significant target for reserve growth and production addition of ...
Xia YAN, Fengyin XU, Xianyue XIONG, Feng WANG, Chunhu LI, Jiyuan ZHANG, Borui XU, Qianhui CHENG, Xiong HU, Xueguang ZHU, Wei LIANG, Pu YUAN, Yanqing FENG, Zhenji WEI   +13 more
doaj   +1 more source

Methane drainage study in the Sunnyside coalbed, Utah [PDF]

"The Bureau of Mines is conducting research to determine the effectiveness of long holes in degasifying an area of the upper split of the lower Sunnyside coalbed at Kaiser SteelCompany's Sunnyside No. 1 mine. These holes were drilled from the two outside

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Gas drainage and utilization in coal mines in China: History, technological advances, and prospects

Meitian dizhi yu kantan
Objective and Methods To promote the research and application of gas drainage and utilization technologies for coal mines, this study systematically summarizes the history of China’s coal mines transitioning from gas pumping to gas drainage, the accurate
Guofu LI, Chao LI, Bichuan ZHANG, Yun XU, Zheng WANG, Xianjun ZHOU   +5 more
doaj   +1 more source

Guidelines for the prediction and control of methane emissions on longwalls [PDF]

"Although longwall mining productivity can far exceed that of room-and-pillar mining, the total methane emissions per extracted volume associated with longwall sections are generally higher than those for continuous miner or pillar removal sections ...

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A High Efficiency Low Damage Fracturing Fluid for Deep Coalbed Methane Development

Zuanjingye yu wanjingye
In developing deep coalbed methane (CBM), existing fracturing fluids have deficiencies such as poor sand carrying capacity and high core damage. To overcome these deficiencies, a fracturing fluid system (HMP/OP) was developed with a main fracturing fluid
Huaibin ZHEN, Shuguang LI, Feng WANG, Tengze GE, Ersi GAO, Kun FENG   +5 more
doaj   +1 more source

Methane emission from U.S. coal mines in 1975 : a survey : a supplement to Information circulars 8558 and 8659 [PDF]

This Bureau of Mines report tabulates methane emissions from U.S. bituminous coal mines with daily emission rates of at least 100,000 cfd according to States, counties, and coalbeds.

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Sequence division and coal facies research methods of the deep No. 8 coal seam in the Daning-Jixian Block, eastern margin of Ordos basin

Scientific Reports
With the large-scale commercial development of deep coalbed methane in the Ordos Basin, the refined research on deep coal seams (with a burial depth > 2000 m) has begun to attract much attention. In this study, the No.
Jintao Kong, Xianyue Xiong, Rong Ding
doaj   +1 more source

Geological characteristics and key technologies for exploration and development of coalbed methane in Zhijin Block of Guizhou Province

Meitan kexue jishu
Zhijin Block has drilled over 50 wells, conducting research and tests on various well types, commingled horizons, and fracturing methods. The proven geological reserves of coalbed methane (CBM) in the Zhucang Sub-syncline are 113×108 m3, making it one of
Xipeng HE, Tao GUO, Yuqiao GAO, Yatong ZHOU, Kening HAN, Xiao CAI, Chao LI, Cui XIAO   +7 more
doaj   +1 more source

Methane emissions from an advancing coal mine section in the Pittsburgh coalbed [PDF]

"The methane emissions from an advancing coal mine section were continuously monitored for 120 days. During this time, the section advanced 2,000 feet into virgin Pittsburgh coalbed producing 54,565 tons of coal with a total methane emission of 91 ...

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