2015
DOI: 10.1260/0144-5987.33.6.809
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Pore Structure and Compressibility of Coal Matrix with Elevated Temperatures by Mercury Intrusion Porosimetry

Abstract: To gain a better understanding of the effect of heat (e.g., magma intrusion, geothermal fluids and enhanced coal-bed methane recovery process) on coal reservoir properties, the pore structure and compressibility of coal matrix for low rank coal (0.69% Ro, m) with elevated temperatures were investigated by using multiple methods, including thermogravimetry-mass spectrometry (TG-MS), scanning electron microscope (SEM), N2 adsorption/desorption at 77 K and mercury intrusion porosimetry (MIP). The results from TG-… Show more

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Cited by 35 publications
(33 citation statements)
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“…With regard to the coal matrix compressibility [46], a significant increase in mercury volume can be observed when the test pressure of MIP is higher than the critical value that can introduce errors to the fractal study of the pore structure. Relative to this, previous researchers have proposed a method for correcting MIP data based on the LP-NA test [47].…”
Section: Comprehensive Characterization Of Pore Structuresmentioning
confidence: 99%
“…With regard to the coal matrix compressibility [46], a significant increase in mercury volume can be observed when the test pressure of MIP is higher than the critical value that can introduce errors to the fractal study of the pore structure. Relative to this, previous researchers have proposed a method for correcting MIP data based on the LP-NA test [47].…”
Section: Comprehensive Characterization Of Pore Structuresmentioning
confidence: 99%
“…It promotes the release of volatile compounds from the particle's volume. Thus, the significant change in structure of the reacting part of the fuel with the expansion of internal cracks and pores (Li et al 2015) which intensify interaction between the surface and an oxidizing medium (Deng et al 2017) is, probably, the result of the steps 1-3.…”
Section: Effect Of Additives On Coal Oxidation Characteristicsmentioning
confidence: 99%
“…Numerous studies have qualitatively or quantitatively examined the effects of coal seam thickness, burial depth, gas content, permeability, gas diffusion behavior, gas saturation, cohesion of the coal, reservoir pressure, dewatering rate, total sand volume, well pattern and fracturing, etc. on CBM production (Bachu and Michael, 2003;Cai et al, 2011;Hildenbrand et al, 2006;Kaiser et al, 1994;Lee et al, 2014;Li et al, 2015;Meng et al, 2014a;Tao et al, 2014;Zhao et al, 2015;Ziarani et al, 2011), and the results show that the effects of those parameters on CBM production are usually different among various CBM-producing areas.…”
Section: Introductionmentioning
confidence: 97%