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Five unconventional fuels: geology and environment [PDF]

, 2014
Unconventional fuels may present a viable partial replacement for conventional fossil fuel reservoirs (such as sandstone and limestone) in rocks onshore and offshore.
Stephenson, Michael H.
core  

Documented international enquiry on solid sedimentary fossil fuels; Coal: definitions, classifications, reserves-resources and energy potential [PDF]

, 2002
This paper deals with all solid sedimentary fossil fuels, i.e. coal, the main one for geological reserves and resources, peat, and oil shales. Definitions of coal ( < 50% ash) and coal seam (thickness and depth limits) are examined in view of an ...
Alpern, B., Lemos de Sousa, M. J.
core   +1 more source

Excess pore pressure behavior and evolution in deep coalbed methane reservoirs

International Journal of Mining Science and Technology
Deep coalbed methane (DCBM), an unconventional gas reservoir, has undergone significant advancements in recent years, sparking a growing interest in assessing pore pressure dynamics within these reservoirs. While some production data analysis techniques have been adapted from conventional oil and gas wells, there remains a gap in the understanding of ...
Changqing Liu, Zhaobiao Yang, Yong Qin, Xia Yan, Yunhai Wang, Zhe Wang   +5 more
openaire   +2 more sources

In situ loading of a pore network model for quantitative characterization and visualization of gas seepage in coal rocks

Deep Underground Science and Engineering, Volume 4, Issue 3, Page 437-451, September 2025.
Fine modeling of a three‐dimensional fracture structure under dynamic loading of coal is carried out. The streamline distribution law of pressure and velocity field in the loading process of the coal specimen is analyzed, the absolute permeability of the coal specimen is calculated, and the feasibility of the pore network model algorithm and finite ...
Huazhe Jiao, Xi Chen, Tiegang Zhang, Quilligan Michael, Yixuan Yang, Xiaolin Yang, Tongyi Yang   +6 more
wiley   +1 more source

Enhanced Coalbed Methane Extraction by Geothermal Stimulation in Deep Coal Mines: An Appraisal

, 2021
Coalbed methane embedded in coal seams, is an unconventional energy resource as well as a hazardous gas existing in mining industries, which attracts lots of global attention. As the largest coal producer, the mining industry in China had to deal with many hazards induced by methane for decades.
Yu, Xu, Lin, Baiquan, Zhai, Cheng, Zhu, Chuanjie, Regenauer-Lie, Klaus, Chen, Xiao   +5 more
openaire   +2 more sources

Cascade Promotion of Gas Separation Performances in CMS Membranes: MOFs With Functional Groups and Loaded Noble Metals

Advanced Science, Volume 12, Issue 32, August 28, 2025.
Novel mixed‐matrix carbon molecular sieve (MMCMS) membranes are fabricated via employing palladium‐doped carboxyl‐functionalized UiO‐66 (Pd/UiO66‐COOH)/polyimide MMM as precursor. The synergistic effect of decarboxylation‐induced thermally cross‐linking and catalytic graphitization of Pd promoted the formation of more ordered Langmuir domains, thereby ...
Min Deng, Jing Wei, Jundong Guo, Zikang Qin, Jia Song, Junfeng Zheng, Lin Yang, Lu Yao, Wenju Jiang, Xiaohua Ma, Xuezhong He, Jiadai He, Jianjian Wang, Zhongde Dai   +13 more
wiley   +1 more source

Development and Testing of Sorption Isotherm Equipment for Nigerian Coal [PDF]

, 2015
Aim: The aim of the study is to investigate the methane content in Nigerian coal. Study Design: Fabrication of Sorption Isotherm Equipment and Experimental Analysis.
Dosunmu, A., Ekeinde, Evelyn Bose, Ojo, Tolulope Elizabeth, Okoro, Emeka Emmanuel   +3 more
core   +1 more source

Research on IDS Water Injection for Prevention of Dynamic Disasters in High‐Stress Low‐Adsorption Coal Seams

Energy Science &Engineering, Volume 13, Issue 8, Page 4114-4130, August 2025.
ABSTRACT The deep coal seams in the Pingdingshan mining area are characterized by high stress and low adsorption capacity. Existing water injection additives have proven ineffective in preventing dynamic disasters. Research has found that IDS (iminodisuccinic acid tetrasodium salt) can dissolve minerals in coal, significantly improving the connectivity
Guochuan Zhang, Na Li, Haiqing Zhang, Qinming Wang, Xinping Zhang, Yanfei Zhu   +5 more
wiley   +1 more source

UK Coal resource for new exploitation technologies. Final report [PDF]

, 2004
This focus of this report are the UK coal resources available for exploitation by the new technologies of Underground Coal Gasification, Coalbed Methane production and Carbon Dioxide Sequestration.
Browne, M.A.E., Creedy, D.P., Durucan, S., Gamer, K., Holloway, S., Jones, N.S., Smith, N.J.P.   +6 more
core  

Evidence for Fluid Pressurization of Fault Zones and Persistent Sensitivity to Injection Rate Beneath the Raton Basin

Geophysical Research Letters, Volume 52, Issue 13, 16 July 2025.
Abstract Subsurface wastewater injection has increased the seismicity rate within the Raton Basin over more than two decades, with the basin‐wide injection rate peaked between 2009 and 2015. To understand the evolution of injection‐induced earthquakes, we systematically analyzed 2016–2024 broadband recordings with a machine‐learning‐based phase picker ...
Mohammadreza Jamalreyhani, Ruijia Wang, Brandon Schmandt, Andres Felipe Peña Castro, Margaret Elizabeth Glasgow   +4 more
wiley   +1 more source