Journal ArticleDOI
The effects of stress and fracturing on permeability of coal
S. Durucan,J.S. Edwards +1 more
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In this paper, the authors examined the changes in structure and permeability of coal under the stress conditions experienced around longwall faces and discussed the effect of fracturing on coal's permeability, and the stress-permeability relationship for fractured coal is compared with that of nonfractured coal.About:
This article is published in Engineering Geology.The article was published on 1986-04-01. It has received 223 citations till now. The article focuses on the topics: Coal.read more
Citations
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Journal ArticleDOI
Modelling permeability for coal reservoirs: A review of analytical models and testing data
Zhejun Pan,Luke D. Connell +1 more
TL;DR: A review of coal permeability and the approaches to modelling its behavior can be found in this paper, where the authors identify some potential areas for future work, as well as some potential directions for future research.
Journal ArticleDOI
Volumetric strain associated with methane desorption and its impact on coalbed gas production from deep coal seams
Xiaojun Cui,R. Marc Bustin +1 more
TL;DR: In this article, the authors investigated quantitatively the effects of reservoir pressure and sorption-induced volumetric strain on coal-seam permeability with constraints from the adsorption isotherm and associated volumetrized strain measured on a Cretaceous Mesaverde Group coal (Piceance basin) and derived a stressdependent permeability model.
Journal ArticleDOI
Drawdown Induced Changes in Permeability of Coalbeds: A New Interpretation of the Reservoir Response to Primary Recovery
Ji-Quan Shi,Sevket Durucan +1 more
TL;DR: In this article, a model for pore pressure-dependent cleat permeability is presented for gas-desorbing, linear elastic coalbeds under uniaxial strain conditions experienced in producing reservoirs.
Journal ArticleDOI
A model for changes in coalbed permeability during primary and enhanced methane, recovery
Ji-Quan Shi,Sevket Durucan +1 more
TL;DR: In this paper, a new version of the stress formulation was proposed by making a direct link between the volumetric matrix strain and the amount of gas desorbed, which can be extended readily to account for adsorption-induced matrix swelling and matrix shrinkage during enhanced methane recovery involving the injection of an inert gas or gas mixture into the seams.
Journal ArticleDOI
Interactions of multiple processes during CBM extraction: A critical review
TL;DR: In this article, a broad variety of models have been proposed to represent the effects of sorption, swelling and effective stresses on the dynamic evolution of coal permeability, and the performance of these models is evaluated against analytical solutions for the two extreme cases of either free shrinking/swelling or constant volume.
References
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Journal ArticleDOI
Effect of stress on permeability of coal
TL;DR: In this paper, the authors evaluated the general flow properties of coal seams under various conditions of applied axial and radial stress and found that the coal seams were strongly stress dependent decreasing by more than two orders of magnitude in the stress range of 250-2000 psi.
Journal ArticleDOI
The Permeability of Coal to Gas and Water
TL;DR: In this article, a large number of samples from the Pittsburgh and Pocahontas coals were measured at various overburden and mean flow pressures and a wide variation in the air and water permeabilities was obtained for each type of coal.
Journal ArticleDOI
An appraisal of strata control practice : 4F, 4T, 30R. TRANS. INSTN. MIN. METALL. V83, JULY, 1974, P.A85–A95
Dissertation
An investigation into the stress-permeability relationship of coals and flow patterns around working longwall faces
TL;DR: In this paper, seven different coal types, ranging from medium volatile to high volatile bituminous, were tested for stress-permeability relationship under simulated subsurface stress conditions.
Related Papers (5)
Drawdown Induced Changes in Permeability of Coalbeds: A New Interpretation of the Reservoir Response to Primary Recovery
Ji-Quan Shi,Sevket Durucan +1 more
How Permeability Depends on Stress and Pore Pressure in Coalbeds: A New Model
Ian D. Palmer,John Mansoori +1 more