Results 51 to 60 of about 2,665,111 (174)
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 +12 more
wiley +1 more source
World coalbed methane projects [PDF]
, 2002 Worldwide coalbed methane resources, once considered as a new "unconventional" natural gas resources, are now being recognised as a potential source of methane in many countries with extensive coal basins. Coal deposits occur abundantly in many locations
Rychlicki, S., Twardowski, K.
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Energy Science &Engineering, Volume 13, Issue 11, Page 5702-5712, November 2025.Through the independent research and development of nitrogen drilling software, the calculation model of gas injection parameters and friction torque calculation model suitable for coalbed methane nitrogen drilling are established, and the calculation methods of construction parameters such as gas injection volume and injection pressure, friction ...
Hu Jiachen +6 more
wiley +1 more source
Impact of Well Stimulation on Coal Porosity of Malaysian Coals for Coalbed Methane (CBM) Study [PDF]
, 2013 Coalbed methane (CBM) is an unconventional gas contained in coalbed reservoir. The character of this reservoir is fundamentally different to conventional gas plays because coal is almost pure carbon.
Abdul Khalil, Amira Raihana
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Energy Science &Engineering, Volume 13, Issue 10, Page 4839-4852, October 2025.ABSTRACT The construction of a logging response model for macrolithotypes in coal has been successfully completed. This model has enabled delineation of vertical and planar distribution patterns of coal macrolithotypes within the #5 and #8 coal seams of the Daji block, as well as to forecast the distribution of favorable reservoir conditions.
Wei Zhang +5 more
wiley +1 more source
Deep Underground Science and Engineering, Volume 4, Issue 3, Page 437-451, September 2025.Fine modeling of a three‐dimensional fracture structure under dynamic loading of coal is carried out. The streamline distribution law of pressure and velocity field in the loading process of the coal specimen is analyzed, the absolute permeability of the coal specimen is calculated, and the feasibility of the pore network model algorithm and finite ...
Huazhe Jiao +6 more
wiley +1 more source
AGENDA: Coalbed Methane Development in the Intermountain West [PDF]
, 2002 306 p. : ill., maps ; 28 cm July 2002 --Cover Proceedings of a conference held April 4-5, 2002 Listed as no. 28 in the Research Report Series on the NRLC Recent Publications list Includes bibliographical references Contents: Coalbed methane development ...
University of Colorado Boulder. Natural Resources Law Center
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Energy Science &Engineering, Volume 13, Issue 7, Page 3631-3643, July 2025.ABSTRACT To investigate the hydraulic fracturing mechanism of high‐fluid wells in the Yangquan mining area, coal seams from the Xinyuan and Xinjing mines were selected as research subjects. Experiments were conducted using the TCQT‐III low‐permeability coalbed gas‐phase displacement and production enhancement apparatus, along with the FINESORB‐3120 ...
Zhou Zhang +7 more
wiley +1 more source
Coalbed methane: resources and recovery [PDF]
, 2013 Gas produced from coal can be subdivided into three categories: coalbed methane (CBM), coal mine methane (CMM) and abandoned mine methane (AMM). CBM is extracted from virgin coal using wells drilled from the surface.
Wójcik, I., Hadro, J.
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Development of gas production type curves for coalbed methane reservoirs [PDF]
, 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