Results 1 to 10 of about 4,725 (177)

Coal-forming sedimentary model and its control on vertical reservoir heterogeneity of the upper carboniferous Benxi formation in Ordos basin, China [PDF]

open access: yesScientific Reports
The Upper Carboniferous Benxi Formation in the Ordos Basin contains thick coal layers, showing good potential for deep coalbed methane exploration.
Yaxuan Zhang   +7 more
doaj   +2 more sources

Carbon isotopic signature of coal-derived methane emissions to the atmosphere: from coalification to alteration [PDF]

open access: yes, 2016
Currently, the atmospheric methane burden is rising rapidly, but the extent to which shifts in coal production contribute to this rise is not known.
A. Jasek   +12 more
core   +2 more sources

Comparison of seam network morphology in coal reservoirs under different fracturing scales: A case of Yanchuannan CBM Gas Field [PDF]

open access: yesYouqicang pingjia yu kaifa
Significant advancements in deep Coal Bed Methane(CBM)development have been achieved through the adoption of reservoir reforming technology, characterized by the utilization of large sand volumes and large fracturing fluid volumes in Yanchuannan CBM Gas ...
LIU Xiao
doaj   +1 more source

Isothermal Desorption Hysteretic Model for Deep Coalbed Methane Development

open access: yesGeofluids, 2022
The adsorption/desorption mechanism of coalbed methane is significant for gas control and coalbed methane exploitation; scholars have done a lot of research on it and generally have confidence in that temperature, pressure, and moisture are central ...
Songlei Tang   +3 more
doaj   +1 more source

Evolution of pore structure, submaceral composition and produced gases of two Chinese coals during thermal treatment [PDF]

open access: yes, 2017
This research was funded by the Research Program for Excellent Doctoral Dissertation Supervisor of Beijing (grant no. YB20101141501), the Fundamental Research Funds for Central Universities (grant no.
Cai, Yi-Dong   +4 more
core   +1 more source

Thingking and utilization technology of coalbed methane in soft and low permeability coal seams in Huainan Mining Area

open access: yesMeitan kexue jishu, 2022
In order to solve the problems that restrict the efficient development of coalbed methane resources under the conditions of soft and low permeability outburst coal seams in Huainan Mining Area, such as complex coal seam structure, multi-source gas ...
Xiangxi KONG   +8 more
doaj   +1 more source

Accumulation characteristics and exploration potential of deep coalbed methane in Changning area of Sichuan Basin [PDF]

open access: yesYouqicang pingjia yu kaifa
The Sichuan Basin is rich in coalbed methane resources, and shallow coalbed methane in the Junlian area has been commercially developed. In the adjacent Changning area, multiple drilling wells have tested and obtained gas in the Permian coal seam ...
YANG Xue, TIAN Chong, YANG Yuran, ZHANG Jingyuan, WANG Qing, WU Wei, LUO Chao
doaj   +3 more sources

Horizontal stress anisotropy and effective stress as regulator of coal seam gas zonation in the Sydney Basin, Australia [PDF]

open access: yes, 2014
Coal seam gas zonation in the Sydney Basin, NSW, Australia is related to basin hydrodynamics and hydrochemical facies evolution along the flow path from the subcrop to the basin center.
Burra, Agi   +2 more
core   +1 more source

Experimental Study on the Oxidation Reaction of Coal-Pyrite and Mineral-Pyrite with the Participation of Fe(III) and Bacteria under Acidic Conditions

open access: yesEnergies, 2023
As one of the crucial factors contributing to coal spontaneous combustion, the oxidation of pyrite is a complex process involving multiple reactions, particularly in the presence of oxidants (Fe3+ and O2) and bacteria. However, experimental results based
Mengya Ma   +3 more
doaj   +1 more source

Assessing connectivity between an overlying aquifer and a coal seam gas resource using methane isotopes, dissolved organic carbon and tritium [PDF]

open access: yes, 2015
Coal seam gas (CSG) production can have an impact on groundwater quality and quantity in adjacent or overlying aquifers. To assess this impact we need to determine the background groundwater chemistry and to map geological pathways of hydraulic ...
A Green-Saxena   +31 more
core   +1 more source

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