Results 31 to 40 of about 3,983 (210)
Optimal design of coalbed methane wells in mining area with thin to medium thick coal seam group
Meitan kexue jishuIn mining areas, utilizing coalbed methane (CBM) wells to extract stress relief coalbed methane from adjacent coal seams is an efficient strategy. To enhance CBM extraction, it is vital to reveal the dynamics of stress and fracture fields evolution and ...
Ang XU +8 more
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Natural Gas Industry B, 2022 Compared with the United States, Australia, Canada, and other countries, China's coalbed methane reservoir is featured by low formation pressure, low permeability, low gas saturation, and strong heterogeneity, which not only increases the difficulty of ...
Deli Gao, Yansen Bi, Bao'an Xian
doaj +1 more source
Coal Bed Methane System Modeling - Reservoir, Wells and Surface Facilities [PDF]
, 2011 Imperial Users ...
Ori-Jesu, Efeoghene, Ori-Jesu, Efeoghene
core
Study on the Law of Multi‐Fracture Propagation in Different Fracturing Fluid Viscosity
Energy 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
Discover Applied SciencesLegacy 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
Youqicang 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
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 +7 more
wiley +1 more source
Montana Bureau of Mines and Geology [PDF]
The Montana Bureau of Mines and Geology is the principal source of earth science information for the citizens of Montana. The bureau provides extensive advisory, technical, and informational services on geologic, mineral, energy, and water resources in ...
core +2 more sources
Rational Design of a Multifunctional MOFs for Alkane‐Selective Gas Separation
Advanced Science, Volume 13, Issue 2, 9 January 2026.The design of a dimethyl‐functionalized adsorbent provides insight into the simultaneous separation of CH4/N2, C2H6/C2H4, and C3H8/C3H6 mixtures. Abstract Efficient separation of light hydrocarbons—including the removal of CH4 from N2 and the purification of olefins such as C2H4 and C3H6 from their corresponding alkanes (C2H6 and C3H8)—is critical in ...
Li Wang +5 more
wiley +1 more source
Study on the Influence of Deep Coalbed Methane Horizontal Well Deployment Orientation on Production
EnergiesThe development of deep coalbed methane has become an important way to obtain natural gas in China. The development of deep CBM mainly depends on horizontal well technology.
Ruyong Feng +5 more
doaj +1 more source