Results 41 to 50 of about 442 (134)

Geochemical Constraints on the Generation of Coalbed Methane in the Weizhou Area, South‐Central Ningxia, NW China: Insights From Stable Isotopes and Organic Petrology

Geofluids, Volume 2025, Issue 1, 2025.
Amid growing global clean energy demand, coalbed methane (CBM) in the coal‐rich Weizhou area holds great development value. This study explores Weizhou CBM′s geochemical traits and genesis via analyzing gas compositions (Shanxi and Taiyuan Formations), stable isotopic distributions (δ13C1, δD, δ13CO2, and δ15N), and their burial depth variations ...
Wei He, Kai Hu, Jian Cao, Suping Yao, Chao Zhang, Guobin Niu, Feilong Yu, Timothy S. Collett   +7 more
wiley   +1 more source

Geological control of differential enrichment of deep coalbed methane in the Ordos Basin

Meitan kexue jishu
The deep coalbed methane (CBM) resources in the Ordos Basin are abundant and have great development potential, making it the main battlefield for exploration and development of deep CBM in China.
Liyong FAN, Guoxiao ZHOU, Zhaobiao YANG, Huaichang WANG, Benju LU, Baoxin ZHANG, Yuhang CHEN, Cunlei LI, Yanqing WANG, Junyu GU   +9 more
doaj   +1 more source

Accumulation characteristics and exploration strategies of coal measure gas in China

Natural Gas Industry B, 2018
Coal measure gas is broadly defined as all natural gas occurring in coal measure strata while narrowly defined as the coalbed methane (CBM) in coal beds and the natural gas in the adjacent tight sandstone reservoirs.
Yonglin Ouyang, Wenguang Tian, Bin Sun, Bo Wang, Ling Qi, Qinping Sun, Qing Yang, Haichao Dong   +7 more
doaj   +1 more source

Study on the CO2 Adsorptive Sequestration Characteristics and Evaluation Model of High‐Rank Coal Reservoirs in Situ Underground

International Journal of Chemical Engineering, Volume 2025, Issue 1, 2025.
Geological CO2 sequestration is currently one of the main effective pathways to achieve industrial carbon reduction. The adsorption of CO2 by coal is a unique storage method for carbon sequestration in underground coal reservoirs. This study conducts isothermal adsorption experiments on high‐rank coal reservoirs with strong gas adsorption capacity in ...
Zehua Zhang, Xiaokai Xu, Liangwei Xu, Lin Tian, Daping Xia, Kuo Jian, Zhengzheng Xue, Jian Li, Yue Xin, Dongyuan Zhao, Parveen Rupani   +10 more
wiley   +1 more source

The primary controlling factors of the occurrence state of deep high-rank coalbed methane in eastern Ordos Basin

Frontiers in Earth Science
Introduction: This study investigates the key controlling factors of the occurrence state of deep coalbed methane (CBM). CBM is an abundant energy resource in China, particularly in deep coal seams.
Yujiang Shi, Yufei He, Jinbin Wan, Jianmeng Sun, Jingbo Zeng, Ruikang Cui   +5 more
doaj   +1 more source

Structural control on productivity of deep coalbed methane wells

Youqicang pingjia yu kaifa, 2021
The southern Yanchuan Block is a deep, high-rank coal-bed methane reservoir with large buried depth at 800~1 500 m, meagre coal or anthracite, and good gas content at 12 m3/t.
LI Xin
doaj  

Probing the Behaviour of Fluids Confined in Porous Materials by Neutron Scattering: Applications to CO2 Sequestration and Enhanced Oil and Gas Recovery

ChemPlusChem, Volume 89, Issue 12, December 2024.
Understanding the properties of confined fluids is a challenging research area and a key feature for many applications. The review summarises the utility of neutron scattering for the structural investigation of fluids confined in porous materials.
Konstantinos L. Stefanopoulos
wiley   +1 more source

Occurrence and Potential for Coalbed Methane Extraction in the Depocenter Area of the Upper Silesian Coal Basin (Poland) in the Context of Selected Geological Factors

Energies
Coalbed methane (CBM) is the only unconventional gas in Poland with estimated recoverable resources. The prospects for developing deep CBM have been explored in recent years by drilling deep exploration wells within the depocenter of the Upper Silesian ...
Sławomir Kędzior, Lesław Teper
doaj   +1 more source

Damage evolution and fracture characteristics of coal rock impacted by self‐excited pulse water jet under different stress loading conditions

Energy Science &Engineering, Volume 12, Issue 9, Page 3743-3763, September 2024.
Numerical simulation model of SEPWJ impacting coal rock under stress loading conditions (H and W are the length and width of coal rock specimen used in the numerical simulation, respectively; σx and σy are the horizontal and vertical stresses applying on coal rock specimen, respectively; dp and dn are the plunger diameter and nozzle outlet diameter ...
Hongyu Ma, Wen Wan, Dongfang Xu, Pengtao Zhao, Jiaokun Wu, Yong Chen, Yao Wang   +6 more
wiley   +1 more source

Factors influencing productivity and production system optimization for deep coalbed methane in the Daning-Jixian block, Ordos Basin

Meitian dizhi yu kantan
ObjectiveDeep coalbed methane (CBM) reservoirs are characterized by ultra-low porosity, ultra-low permeability, and super saturation, rendering it impractical to copy the productivity models of shallow coalbed methane and shale gas.
Haifeng ZHAO, Zhaojie JIA, Mengqi CHEN, Ziyi YANG, Bin WANG, Hongliang LIN, Yanfeng YANG   +6 more
doaj   +1 more source