Results 31 to 40 of about 1,653 (179)

A study on Mechanical Seepage Characteristics of Coal‐Rock Mass Under the Combined Action of Multiple Factors

Safety Science and Technology, Volume 1, Issue 1, March 2026.
Schematic diagram of a triaxial fluid–solid coupling device based on the mapping function. ABSTRACT In deep coal mining, the influence of temperature–pressure coupling on the mechanical properties of coal is a crucial factor inducing dynamic disasters.
Musen Gao, Heng Ma, Xiaoqi Wang, Ke Gao
wiley   +1 more source

Occurrence phase and gas-bearing evolution of deep coalbed methane

Meitan kexue jishu
Deep coalbed methane has achieved a significant breakthrough in daily production of a single well and large-scale commercial development, demonstrating the enormous resource potential.
Shuheng TANG, Zhaodong XI, Songhang ZHANG, Fenjin SUN, Lijiang DUAN, Wenguang TIAN, Meizhu WANG   +6 more
doaj   +1 more source

Stimulation practice of geology-engineering integration fracturing for deep CBM in Yanchuannan Field

Youqicang pingjia yu kaifa, 2021
As a new field of unconventional natural gas exploration and development, deep coalbed methane（CBM） has great resource potential, but its benefit development faces great challenges.
YAO Hongsheng, CHEN Zhenlong, GUO Tao, LI Xin, XIAO Cui, XIE Fei   +5 more
doaj  

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  

Research on the Mechanism of Sand Bridge Stuck Drill in Deep Coal and Rock Gas Horizontal Wells

Energy Science &Engineering, Volume 14, Issue 2, Page 854-865, February 2026.
Accounting for wellbore collapse debris and the bulldozer effect, this study develops models for permeable and impermeable sand bridge sticking in deep CBM horizontal wells, deriving resistance and volume formulations. Validated in Changqing, results show impermeable bridges dominate; controls (fluid optimization, staged drilling, circulation, speed ...
Cheng Hui, Yong Ouyang, Zhifeng Duan, Xiaoyue Xu, Yuxiang Teng, Mingyang Liu, Hui Zhang, Long Chen   +7 more
wiley   +1 more source

Integrated Analysis of Pore and Fracture Networks in Deep Coal Seams: Implications for Enhanced Reservoir Stimulation

Energies
This study systematically investigates the pore–fracture architecture of deep coal seams in the JiaTan (JT) block of the Ordos Basin using an integrated suite of advanced techniques, including nuclear magnetic resonance (NMR), high-pressure mercury ...
Kaiqi Leng, Baoshan Guan, Chen Jiang, Weidong Liu   +3 more
doaj   +1 more source

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

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

, 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, B. F. J. Kelly, C. P. Iverach, D. Lowry, E. G. Nisbet, E. Ginty, G. Zazzeri, J. L. France, J. L. France, J. M. Necki, M. Lanoisellé, M. Zimnoch, R. E. Fisher   +12 more
core   +2 more sources

Mitigating Surface Tension Effects in Multi‐Coalbed Methane Reservoirs: Case Study of Liupanshui Field

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
Water locking effect caused by surface tension severely restricts coalbed methane (CBM) productivity in multilayer reservoirs. The Songhe demonstration area features main target coal seams with overpressure, high gas content, and high gas saturation, presenting favorable CBM development conditions.
Zhu Liu, Yu Xiong, Shiliang Zhu, Zong Ren, Xiao Wang, Xixi Hao, Yun Feng, Mahmoud Ahmed   +7 more
wiley   +1 more source

Experimental Study on Multiscale Evolution Mechanism of Coalbed Reservoir Properties in “Three‐Low” CBM Reservoirs Modified by Chlorine Dioxide

Geofluids, Volume 2026, Issue 1, 2026.
Aiming at the “three‐low” challenges (low permeability, low gas saturation, and low critical desorption‐to‐storage ratio [CDSR]) of Chinese coalbed methane (CBM) reservoir materials, this study adopted chlorine dioxide (ClO2) chemical modification on long‐flame, coking, and anthracite coal materials.
Chaowen Hu, Ruifeng Huang, Huifeng Wang, Bo Pan, Xiaojie Yang, Yichao Li, Fulong Sun, Umberta Tinivella   +7 more
wiley   +1 more source