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Gas-induced swelling in coal

WebAug 28, 2016 · Furthermore, fracturing of the mineral phase (embedded in the coal) was observed; this fracturing was induced by the internal swelling stress. We conclude that coal permeability is drastically … WebOct 16, 2003 · MATRIX SWELLING WITH CO2 INJECTION IN A CBM RESERVOIR AND ITS IMPACT ON PERMEABILITY OF COAL A. Zutshi, S. Harpalani Geology 2004 Coal permeability is very sensitive to the volumetric changes induced in coal matrix as a result of sorption of gas (es). Although there have been no studies to investigate the matrix …

Modelling of Coal Matrix Deformation and Swelling of Coal …

WebThe experimental results show that gas adsorption induced shale swelling and the absolute adsorption amount in different gases are both about one order of magnitude lower than that of coal and are in a trend line with the results of gas adsorption-induced coal swelling, indicating that shale swelling mechanism may be similar to that of coal. WebFeb 20, 2024 · The phenomenon of coal swelling caused by gas adsorption is well known. For Enhanced Coal Bed Methane Recovery and carbon storage, coal swelling induced by gases adsorption may cause significant reservoir permeability change. maritime tent rentals https://rhinotelevisionmedia.com

Effects of gas sorption-induced swelling/shrinkage on the …

WebOne of the initial study related to the CO2 adsorption induced swelling effect in coal and shows that super-critical CO2 creates higher swelling … WebJan 1, 2024 · Karacan (2007) conducted a series of experimental tests to study the swelling-induced volumetric strains internal to a stressed coal associated with CO2 sorption. Liu et al. (2016) investigated the effects of matrix swelling area propagation on the permeability evolution by using both natural and reconstituted samples. WebFeb 20, 2024 · The phenomenon of coal swelling caused by gas adsorption is well known. For Enhanced Coal Bed Methane Recovery … maritime taschen

Experimental Investigation of the Thermal Expansion …

Category:A theoretical model for coal swelling induced by gas adsorption in …

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Gas-induced swelling in coal

Swelling‐induced changes in coal microstructure …

WebNov 17, 2024 · 3.1 Gas adsorption-induced coal deformation Coal swelling/shrinkage induced by gas adsorption/desorption is a well-accepted phenomenon (Reucroft and Patel 1986; Levine 1996; Durucan et al. 2009; Battistutta et al. 2010; Zhu et al. 2013 b, 2024; Wang et al. 2024a, b ). WebFeb 10, 2024 · Due to the lack of data in the literature, this article discusses the sorption-induced swelling properties of hard coal in a methane and carbon dioxide atmosphere. ... A Theoretical Model for Coal Swelling Induced by Gas Adsorption in the Full Pressure Range. Adsorpt. Sci. Technol. 2024, 38, 94–112.

Gas-induced swelling in coal

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WebSep 13, 2024 · Swelling-induced by gas (CH4 and CO2) adsorption is an important phenomenon in coal bed methane (CBM) recovery and carbon dioxide … WebMay 4, 2024 · In this study, an investigation of carbon dioxide sorption induced coal swelling and its effects on gas transport in coal is shown. The model presented is …

WebNarkiewicz and Mathews (2009) calculated the CO 2 -induced swelling of coal via MD and proposed that the anisotropic swelling was greater perpendicular to the bedding plane. The deformation of coal induced by CH 4 adsorption was also quantified via the quenched solid density functional theory (QSDFT) and clarified the adsorption-induced ... WebDec 1, 2010 · In order to investigate the unique mechanical behavior of swelling deformation effect of coal induced by gas adsorption, the self-developed meso …

WebDec 1, 2010 · In order to investigate the unique mechanical behavior of swelling deformation effect of coal induced by gas adsorption, the self-developed meso-mechanical testing apparatus of coal... WebFeb 20, 2024 · For better application, a simple and effective model for gas adsorption-induced coal swelling must be established. In this paper, a new model should be …

WebCoal permeability measurements are normally conducted under the assumption that gas pressure in the matrix is equalized with that in fracture and that gas sorption-induced swelling/shrinking strain is uniformly distributed within the coal.

WebOct 13, 2024 · The results show that the coal adsorption capacity in CO2 is almost two times greater than that in CH4, and nitrogen adsorption is the least among these gases. … maritime terminal puerto vallartaWebFeb 22, 2024 · It shows that the expansion caused by coal-adsorbed gas may be caused by the thermal expansion caused by the increase in coal temperature. The expansion deformation of the coal will compress the fracture channels of the coal, which leads to a decrease in permeability. maritime terminologyWebMar 1, 2011 · Coal swelling induced by gas adsorption is a well-known phenomenon. In order to enhance coalbed methane production and greenhouse gases sequestration, adsorption phase should be understood deeply ... maritime technologienWebApr 6, 2024 · Under subsurface conditions, the injected CO 2 is partly present as a free phase and partly immobilised by adsorption to the coal matrix, what causes coal swelling. The adsorption-induced swelling of the coal matrix constricts the fluid flow pathways, leading to a reduction in permeability, and can result in a considerable loss of injectivity ... maritime terrestrial zonemaritime technical servicesWebAug 28, 2016 · Enhanced coalbed methane recovery and CO 2 geostorage in coal seams are severely limited by permeability decrease caused by CO 2 injection and associated coal matrix swelling. Typically, it is assumed … maritime terminology glossaryWebOct 30, 2024 · Coal permeability is sensitive to reservoir stress conditions and the gas sorption-induced swelling/shrinkage behavior 5,6,7. This information has been … maritime tischlampen