Results 71 to 80 of about 309,171 (269)

Analysis of Gas Migration Characteristics and Controlling Factors in Nanopores of Deep Coal Seams

Geofluids, Volume 2026, Issue 1, 2026.
Nanopores of various scales and morphologies in coal are important spaces for gas storage and migration. To deeply analyse the initial gas migration scale and characteristics in coal matrix micropores, this paper constructs an apparent permeability model describing the gas migration scale based on the gas transport mechanism, and analyses the ...
Ji Xiaofeng, Cao Jinyao, Song Dangyu, Jian Kuo, Li Quanzhong, Pramita Mishra   +5 more
wiley   +1 more source

An analytical model for desorption area in coal-bed methane production wells [PDF]

, 2013
Production forecasting, well spacing, and well pattern optimization are key tasks in coal-bed methane field development plan. Desorption area around a production well is an important factor in well performance and reserve estimation.
Chen, D., Du, X., Haghighi, M., Li, X., Xu, B., Yang, X., Zhai, Y.   +6 more
core   +1 more source

Methodologies for Gas Content Evaluation in Deep Coal/Shale Formations: Assessment, Improvement, and Comparison

Journal of GeoEnergy, Volume 2026, Issue 1, 2026.
Gas‐in‐place (GIP) content is a critical indicator for evaluating deep coal/shale resource potential, typically categorized into lost gas content, desorbed gas content, and residual gas content. The lost gas content cannot be directly quantified and requires specific methods for assessment.
Lingqi Liu, Jun Wang, Shuangfang Lu, Shengxian Zhao, Yongyang Liu, Feng Wang, Hongcheng He, Jihua Xie, Guohui Chen, Nengwu Zhou, Pengfei Zhang, Wenbiao Li, Sun Mengdi   +12 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  

Hydrogeological condition patterns of Kuznetsk Basin coalbed methane fields for estimating hydrodynamic calculations [PDF]

, 2016
The paper describes the natural regional conditions and key formation factors of groundwater dynamics. Characteristic hydrogeological structure elements for Kuznetsk Basin coal were identified providing parameter-oriented hydrodynamic calculations and ...
Bogdanova, Anna Gennadievna, Gridasov, Alexander, Kuzevanov, Konstantin Ivanovich   +2 more
core   +1 more source

Physical Simulation and Law of Interlayer Interference in Multi-Layer Combined Production of Gas Reservoirs with Pressure Difference

Energies
To address interlayer interference during multi-layer commingled production in gas reservoirs with pressure differences, this study investigates the low-permeability gas reservoir in the central Linxing area of the Ordos Basin.
Yu Su, Bing Zhang, Honggang Mi, Chao Wei, Bo Wang, Le Sun, Tianyu Fu, Chen Wang   +7 more
doaj   +1 more source

Inverse Design of Metal‐Organic Frameworks for CH4/N2 Separation Enabled by Coupled Machine Learning and Genetic Algorithms

Advanced Science, Volume 12, Issue 46, December 11, 2025.
A machine learning‐guided genetic algorithm is employed to explore metal‐organic frameworks (MOFs) for CH4/N2 separation. By combining predictive modeling with adaptive evolution, the approach identifies high‐selectivity candidates featuring fsc topologies and polycyclic ligands, offering an efficient route to discovering high‐performance separation ...
Wenxuan Li, Xiaonan Zhang, Hao Guo, Lingchuan Li, Lifeng Ding, Qingyuan Yang   +5 more
wiley   +1 more source

INFLUENCE OF VERTICAL DEVIATORIC STRESS ON PERMEABILITY CHANGES IN COAL [PDF]

, 2014
Coalbed methane is becoming become an important component of the world\u27s natural gas resource. To date, researchers have mostly investigated the permeability changes due to non-linear elastic deformation caused by a matrix shrinkage associated with ...
Uddin, Sheikh S
core   +1 more source

Optimization and application of sand bailing technology for coalbed methane horizontal wells

Meitian dizhi yu kantan
Objective and Methods Coalbed methane (CBM) horizontal wells face challenges such as sand accumulation in completion strings, pipe wall scaling, and pump sticking, leading to declined CBM production or shutdown of these wells.
Fei ZHANG, Yibing WANG, Lu CHENG, Wenbo MEI, Qi YANG, Wenjie SHEN, Chao CAO, Peng LAI, Zhengkai LIAO, Bao’an XIAN, Yansen BI   +10 more
doaj   +1 more source

Study on the diffusion and migration law of CO2 sequestrated in abandoned coal mine goaf

Deep Underground Science and Engineering, Volume 4, Issue 4, Page 530-547, December 2025.
The goaf of an abandoned coal mine, endowed with expansive fracture spaces and an abundance of residual coal, can be capable of sequestrating substantial quantities of CO2. The residual coal is the principal medium for the sequestration of CO2 in the form of adsorption and the amount of sequestration is considerable.
Haiyang Zhou, Yu Wu, Chunhui Liu, Haozhe Geng, Chenyu Yao   +4 more
wiley   +1 more source