Results 31 to 40 of about 246,283 (173)

Control Mechanism of Pore Structure of Different Macroscopic Lithotypes on Gas Desorption Differences: A Case Study of High‐Rank Coal From the Western Ordos Basin

open access: yesEnergy Science &Engineering, Volume 14, Issue 9, Page 4508-4521, September 2026.
论文陈述 Paper Statement 本研究揭示了不同宏观煤岩类型的差异化控气机制:半亮煤是主要“储气核心,” 光亮煤为关键“渗流通道,” 暗淡煤则是“初期高产贡献者”。这为深层煤层气甜点优选与定制开发提供了关键理论依据。 This study reveals the differentiated gas‐controlling mechanisms of different macroscopic coal lithotypes: semibright coal acts as the primary “gas storage core,” bright coal serves as the critical “seepage channel,” and dull coal functions
Heng Li   +6 more
wiley   +1 more source

Methanogen consortium metabolism characteristic analysis of Illinois basin by real time monitor method [PDF]

open access: yes, 2010
Microbially Enhance Coalbed Methane technology is used to improve methane content in coalbeds. The methanogen consortium metabolism process is the basic avenue for MECoM to yield methane with some organic compounds in coal. Detailed information about the
Enyuan Wang, Dong Xiao
core  

Development of gas production type curves for coalbed methane reservoirs [PDF]

open access: yes, 2004
Coalbed methane is an unconventional gas resource that consists on methane production from the coal seams. The unique coal characteristic results in a dual-porosity system.
Garcia Arenas, Anangela
core   +1 more source

Study on the Law of Multi‐Fracture Propagation in Different Fracturing Fluid Viscosity

open access: yesEnergy Science &Engineering, Volume 14, Issue 3, Page 1339-1352, March 2026.
Samples and equipment Sample preparation Test equipment Analysis of test results Fracture propagation morphology Influence of fracturing fluid viscosity on crack initiation time/(fracture initiation pressure) Evolution law of injection pressure Cumulative relation curve of pressure–time–acoustic ABSTRACT Using the TCHFSM‐I large‐scale accurate triaxial
Zhixing Zhang   +4 more
wiley   +1 more source

Variation of Gas Content in Coalbed Methane Development [PDF]

open access: yes, 2011
At present, the variation of gas content resulted from the surface coalbed methane (CBM) development has not been reported at home. It is introduced that adopting the CBM-SIM software and combining with the key oil and gas special research task, the ...
Chen, Zhisheng   +7 more
core   +1 more source

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

open access: yesSafety 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

Evaluation of legacy coalbed methane resources and optimization of gas drainage zones within the Songzao mining area

open access: yesDiscover Applied Sciences
Legacy coalbed methane (CBM) extraction holds substantial significance in advancing resource development within closed mines, fostering unconventional clean energy production, and facilitating the optimization and transformation of mining regions.
Qiang Fu   +3 more
doaj   +1 more source

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

open access: yesEnergy 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   +7 more
wiley   +1 more source

Characteristics of groundwater dynamic field and it’s controlling gas effects in No. 15 coal seam of Shouyang area

open access: yesYouqicang pingjia yu kaifa, 2022
Finding out the hydrogeological conditions and it’s controlling gas effects of CBM(coalbed methane) development area is important, which can provide a foundation for further development well location deployment. Taking the No.15 coal seam of Songta Block
WANG Wensheng   +4 more
doaj  

The Effect of Permeability towards Coalbed Methane (CBM) Production [PDF]

open access: yes, 2012
Coalbed methane (CBM) reservoirs have generated large and unerring interest in the last 20 years or so due to its potential as one of the most efficient unconventional source of energy.
Ahmad Hisyam Rosaimi Bin Hassim, Ahmad Hisyam Rosaimi
core  

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