Results 91 to 100 of about 309,171 (269)

Study on Interface Effect of Surfactant/Coal Composite System and Desorption Law of Methane

Zuanjingye yu wanjingye
To address the key issue of surfactant-controlled coal wettability and desorption of methane in deep coalbed methane (CBM) development, coal-rock samples were taken from the Benxi Formation of the Erdos Basin to study the pattern of how surfactants ...
Pu YUAN, Songtao MU, Zhenji WEI, Chunhu LI, Xueguang ZHU, Zhao JIANG, Liang MA   +6 more
doaj   +1 more source

Study on the characteristics of gas permeability of coal under loaded stress [PDF]

, 2017
The #3 coal seam of Jinsheng Rundong Ltd. of Jin-Coal Group in Shanxi Province, China, has high gas content and pressure; however, it has a low gas permeability, which can easily cause gas enrichment and may cause accidents of coal and gas outbursts.
Li, Dengke, Li, Xinping, Qu, Dengxing, Wang, Gongzhong, Zhang, Jianhua   +4 more
core   +1 more source

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

CONSTRAINING THE MEAN RESIDENCE TIME AND FLOWPATH OF GROUNDWATER THROUGH COAL SEAMS USING NOBLE GASES [PDF]

, 2018
Noble gases, specifically 4He concentrations, can be a useful tool for determining the rates of groundwater recharge, subsurface residence times, and groundwater flowpaths, especially in difficult to model complex formations such as fractured aquifers ...
Darland, Samuel
core  

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

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

Coalbed methane production case histories [PDF]

, 1981
The production of methane gas from coal and coal-bearing rocks is one of the prime objectives of the Department of Energy's Methane Recovery from Coalbeds Project. This report contains brief description of wells that are presently producing gas from coal or coal-bearing rocks.
openaire   +2 more sources

Potential for CO2 sequestration and enhanced coalbed methane production in the Netherlands [PDF]

, 2006
This study investigated the technical and economic feasibility of using CO2 for the enhanced production of coal bed methane (ECBM) in the Netherlands. This concept could lead to both CO2 storage by adsorbing CO2 in deep coal layers that are not suitable ...
Barzandji, O., Bergen, F. van, Bruining, H., Faaij, A.P.C., Hamelinck, C.N., Jansen, Daan, Pagnier, H., Ruijg, G.J., Schreurs, H., Wolf, K.-H.   +9 more
core   +1 more source

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