Results 41 to 50 of about 246,283 (173)

Technical advances in well type and drilling & completion for high-efficient development of coalbed methane in China

open access: yesNatural 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

Rational Design of a Multifunctional MOFs for Alkane‐Selective Gas Separation

open access: yesAdvanced 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

World coalbed methane projects [PDF]

open access: yes, 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.
core  

Mitigating Surface Tension Effects in Multi‐Coalbed Methane Reservoirs: Case Study of Liupanshui Field

open access: yesInternational Journal of Energy Research, Volume 2026, Issue 1, 2026.
Water locking effect caused by surface tension severely restricts coalbed methane (CBM) productivity in multilayer reservoirs. The Songhe demonstration area features main target coal seams with overpressure, high gas content, and high gas saturation, presenting favorable CBM development conditions.
Zhu Liu   +7 more
wiley   +1 more source

Impact of Well Stimulation on Coal Porosity of Malaysian Coals for Coalbed Methane (CBM) Study [PDF]

open access: yes, 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
core  

Prediction of coalbed methane productivity based on neural network models

open access: yes河南理工大学学报. 自然科学版
ObjectivesThe productivity of coalbed methane is mainly affected by geological and engineering factors. Clarifying the influence mechanism of these factors on the productivity of coalbed methane wells is the basis for achieving fine reservoir ...
JIN Yi   +7 more
doaj   +1 more source

Experimental Study on Multiscale Evolution Mechanism of Coalbed Reservoir Properties in “Three‐Low” CBM Reservoirs Modified by Chlorine Dioxide

open access: yesGeofluids, Volume 2026, Issue 1, 2026.
Aiming at the “three‐low” challenges (low permeability, low gas saturation, and low critical desorption‐to‐storage ratio [CDSR]) of Chinese coalbed methane (CBM) reservoir materials, this study adopted chlorine dioxide (ClO2) chemical modification on long‐flame, coking, and anthracite coal materials.
Chaowen Hu   +7 more
wiley   +1 more source

AGENDA: Coalbed Methane Development in the Intermountain West [PDF]

open access: yes, 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
core  

Geological evaluation and prediction of favorable areas of underground coal gasification in the Third Area of Aiding Lake in Tuha Basin

open access: yesMeitan xuebao
Taking the coal reservoir in the Aiding Lake Area of the Tuha Coalfield as the research object, the characteristics of coal, rock, coal quality, coal seam occurrence, hydrological features, surrounding rock properties, and geological structural ...
Peng LAI   +8 more
doaj   +1 more source

Transient Flow of a Horizontal Well with Multiple Fracture Wings in Coalbed Methane Reservoirs

open access: yesEnergies, 2020
Horizontal wells with multi-stage fractures have been widely used to improve coalbed methane (CBM) production from coalbed methane reservoirs. The main focus of this work is to establish a new semi-analytical method in the Laplace domain and investigate ...
Qing Tian   +4 more
doaj   +1 more source

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