Results 111 to 120 of about 6,533 (232)

Primary geological characteristics, advances in exploration and production, and strategies of coalbed methane in South China

Meitian dizhi yu kantan
Objective and Methods South China contains abundant coalbed methane (CBM) resources from numerous, superimposed, thin coal seams, serving as a significant replacement for China’s CBM exploration and production in the future.
Tao GUO, Yatong ZHOU, Xiaobo JIN, Xiaokang GAO, Xingping PENG   +4 more
doaj   +1 more source

Coalbed Methane Reserves in China.

Journal of Geography (Chigaku Zasshi), 2000
Coalbed Methane (CBM), a clean natural gas, has been expected to be utilized as one of the new domestic supply energy sources in China. The development of CBM in China has entered into a new phase, namely the execution of feasibility studies on exploration and production in particular areas, following the first phase of a general survey of CBM reserves.
openaire   +2 more sources

Mineral Characterization and Gas Content Prediction of Coalbed Methane Reservoirs in the Junggar Basin Based on Full-Diameter CT Scanning

Yankuang ceshi
The complex mineral distribution, particularly clay minerals impacting reservoir sensitivity, poses a key challenge for optimizing development and preventing damage in the Junggar Basin's coalbed methane reservoirs.
Wenjie LI, Yunli WU, Xiaohu ZHU, Qiang ZHANG, Haoran LI, Lei XUE, Mingwei YAO, Lijuan WEN, Jinbiao WU, Guohui CHEN   +9 more
doaj   +1 more source

Fracture Propagation Laws and Influencing Factors in Coal Reservoirs of the Baode Block, Ordos Basin

Energies
The expansion of hydraulic fractures in coalbed methane (CBM) reservoirs is key to effective stimulation, making it essential to understand fracture propagation and its influencing factors for efficient resource development.
Qingfeng Zhang, Yongchen Li, Ziling Li, Yanbin Yao, Fengfeng Du, Zebin Wang, Zhihao Tang, Wen Zhang, Shutong Wang   +8 more
doaj   +1 more source

Drilling a horizontal coalbed methane drainage system from a directional surface borehole [PDF]

"Three long horizontal holes were drilled from a directionally drilled surface hole at the Emerald Mine near Waynesburg, Pennsylvania. The purpose was to adapt the technique of directional drilling for use in draining methane from coalbeds.

core  

Rotary drilling techniques used in the Beckley coalbed [PDF]

"The U.S. Bureau of Mines used a contact drilling strategy with short- collared assemblies in order to rotary drill long horizontal methane drainage holes in the Beckley coalbed near Glen Daniel, West Virginia. By decreasing the thrust and increasing the

core  

Methane control for underground coal mines [PDF]

"Ventilation has long been the primary means of controlling methane emissions in underground coal mines. However, as mining has progressed into gassier areas of U.S.

core  

Methane emission rate studies in a central Pennsylvania mine [PDF]

"A methane emission rate study was conducted in 1969 on a longwall section of a Lower Kittanning coalbed mine in central Pennsylvania . The longwall face was mined with a drum shearer between developed headings on the head end and headings on the tail ...

core  

Steering the microbial ecosystem: how ethanol boosts coalbed methane output. [PDF]

AMB Express
Li Y, Meng Y, Zhang H, Qiao M, Yang X.
europepmc   +1 more source

Research on Optimization of Construction Parameters of Vertical Cross-Layer Fracturing in Thin Interbedded Coalbed Methane Reservoirs. [PDF]

ACS Omega
Chen J, Zhu Y, Shao L, Liang L, Hu H.
europepmc   +1 more source