Journal ArticleDOI
Stress response during in-situ gas depletion and its impact on permeability and stability of CBM reservoir
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TLDR
In this article, the horizontal stress and permeability of coalbed methane (CBM) reservoir were continuously monitored during different gases depletion, and a stability factor was proposed to evaluate the reservoir stability during depletion.About:
This article is published in Fuel.The article was published on 2020-04-15. It has received 49 citations till now. The article focuses on the topics: Gas depletion & Overburden pressure.read more
Citations
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Evaluating the changes of sorption and diffusion behaviors of Illinois coal with various water-based fracturing fluid treatments
TL;DR: In this paper, the influence of various fracturing fluids on the gas sorption and diffusion behaviors were experimentally studied in the Illinois basin coal was selected for the experimental measurements, and the authors used slickwater, guar gel and viscoelastic surfactant (VES) fracturing fluids to treat the coal.
Journal ArticleDOI
Multifractal analysis of coal pore structure based on NMR experiment: A new method for predicting T2 cutoff value
TL;DR: In this paper, the pore structure of four types of coal samples was studied based on NMR experiments and the multifractal characteristics of saturated coal samples were analyzed with multifractal theory.
Journal ArticleDOI
Gas diffusion coefficient estimation of coal: A dimensionless numerical method and its experimental validation
Ang Liu,Peng Liu,Shimin Liu +2 more
TL;DR: In this paper, a series of experiments were conducted to measure the gas adsorption and diffusion using the volumetric method and the Fick diffusion model was solved by both analytical method and numerical method to estimate the gas diffusion coefficient based on the experimental data.
Journal ArticleDOI
Elimination of coal and gas outburst risk of an outburst-prone coal seam using controllable liquid CO2 phase transition fracturing
TL;DR: In this article, the authors introduced the technology of pressure relief and antireflection by liquid CO2 phase transition in the driving face of an outburst-prone coal seam, which can not only reduce CO2 emission, but also can increase production of coalbed methane.
References
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Journal ArticleDOI
How Permeability Depends on Stress and Pore Pressure in Coalbeds: A New Model
Ian D. Palmer,John Mansoori +1 more
TL;DR: In this article, a new theoretical model for calculating pore volume compressibility and permeability in coals as a function of effective stress and matrix shrinkage, using a single equation is presented.
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
The World Stress Map database release 2016 : Crustal stress pattern across scales
Oliver Heidbach,Mojtaba Rajabi,Xiaofeng Cui,Karl Fuchs,Birgit Müller,John Reinecker,Karsten Reiter,Mark Tingay,Friedemann Wenzel,Furen Xie,Moritz Ziegler,Mary-Lou Zoback,Mark D. Zoback +12 more
TL;DR: In this article, the authors present details of the new WSM database release 2016 and an analysis of global and regional stress pattern, and show two examples of 40 degrees-60 degrees S-Hmax rotations within 70 km.
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Modelling permeability for coal reservoirs: A review of analytical models and testing data
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Drawdown Induced Changes in Permeability of Coalbeds: A New Interpretation of the Reservoir Response to Primary Recovery
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