Results 41 to 50 of about 218,589 (182)

Key technologies of efficient extraction of coalbed methane (gas) in Guizhou coal mine area

open access: yesMeitan kexue jishu
Under the background of “double carbon” goal, how to solve the problem of frequent gas over-limit in high gas mine and efficient surface extraction of coalbed methane in coal mine area, we must find ways to realize efficient cooperative development of ...
Wang YI   +9 more
doaj   +1 more source

Appraising Carbon Geological‐Storage Potential in Saline Aquifers Using Two‐Phase Rate‐Transient Analysis

open access: yesWater Resources Research, Volume 62, Issue 4, April 2026.
Abstract Rate transient analysis (RTA) is a practical and cost‐effective method for CO2 injection data analysis and storage capacity evaluation of saline aquifers. However, the nonlinear behavior introduced by two‐phase CO2–brine flow, coupled with pressure‐dependent fluid and rock properties, significantly limits the applicability of conventional ...
Zhenhua Rui   +3 more
wiley   +1 more source

Hotspots, trends, and regional focus on oil or gas exploration: A bibliometric comparative study

open access: yesDeep Underground Science and Engineering, Volume 5, Issue 1, Page 296-311, March 2026.
This paper explores the research trends in global oil and gas exploration through the bibliometric analysis of 3460 articles collected from the Web of Science database on oil and gas exploration published from 2013 to 2023. The research hotspots, objects, regional distribution, methods, and evaluation methods of oil and gas exploration are analyzed and
Jihong Wang   +3 more
wiley   +1 more source

Coalbed methane in Wyoming

open access: yes, 1990
Coalbed methane in ...
R.H. DeBruin (10069876)   +1 more
core   +1 more source

Influence of rock mechanics characteristics on fracturing and development strategies in the Zhengzhuang Block

open access: yesMeitan kexue jishu
The rock mechanical parameters of coal reservoirs play an important role in controlling the formation and evolution of natural fractures and the propagation of artificial fractures, and are the key factors affecting the fracturing transformation of coal ...
Cong ZHANG   +8 more
doaj   +1 more source

A novel construction approach for the pore structure model principally focuses on the controllable roundness of rock particles

open access: yesDeep Underground Science and Engineering, Volume 5, Issue 1, Page 207-219, March 2026.
Particle rounding effects comparison of different methods: (a), (b), and (c) are the rounding results using the B‐spline curve method with different R; (d), (e), and (f) are the results of vertex rounding substitution method with different rounding radii.
Jiabin Dong   +6 more
wiley   +1 more source

Lithology identification of shale gas reservoirs using multi-source intelligent learning algorithms

open access: yesDiscover Applied Sciences
Lithology classification of shale gas reservoirs is pivotal for oil and gas exploration and development, as it directly dictates the reliability of reservoir evaluation, fracturing design, and productivity prediction.
Ming Chen   +5 more
doaj   +1 more source

Nanoconfined Methane Storage Mechanism in Deep Coal Seams: A Wettability-Coupled Simplified Local Density Model

open access: yesNanomaterials
In deep coal seams, where nanopores (~2 nm) dominate, wettability effects, which govern molecule–wall interaction strength, critically control the methane storage, yet remain poorly understood.
Liang Ji   +10 more
doaj   +1 more source

Characterization of the permeability evolution of hard and soft rocks under hydro‐mechanical coupling conditions

open access: yesDeep Underground Science and Engineering, Volume 5, Issue 1, Page 220-232, March 2026.
The permeability variation of rocks during complete stress–strain processes was investigated. A mathematical model describing the influence of rock damage on permeability was constructed. The permeability–stress relationship between soft rock and hard rock was proposed.
Zhen Huang   +6 more
wiley   +1 more source

Methane emission from U.S. coal mines : a survey [PDF]

open access: yes
This survey was conducted to determine the magnitude of the methane emission and control problem in U.S. bituminous coal mines. The resultant data indicate that the emission rate for any given coalbed depends primarily on the coal production rate and on ...

core   +2 more sources

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