FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2019203114> ?p ?o ?g. }

• W2019203114 endingPage "1882" @default.
• W2019203114 startingPage "1862" @default.
• W2019203114 abstract "Enhanced Coalbed Methane production (ECBM) by CO2 injection frequently proves ineffective due to rapidly decreasing injectivity. Adsorption-induced swelling of the coal matrix has been identified as the principal factor controlling this reduction. To improve understanding of coal swelling in response to exposure to CO2 at high pressures, numerous laboratory studies have been performed in the past decades. These studies consistently reveal an increase in swelling with CO2 pressure. However, it remains unclear what the relative contributions are of adsorption-induced swelling versus elastic compression of the coal framework, and hence what is the true relationship between adsorption-induced swelling and CO2 uptake.Here, we report the results of dilatometry experiments conducted on unconfined, cylindrical coal matrix samples (∼4 mm long and 4 mm in diameter) of high volatile bituminous coal, where we aim to measure the effective volumetric effect of CO2 and to separate this into a component caused by adsorption-induced swelling and a component caused by elastic compression. The experiments were performed using a high pressure eddy current dilatometer that was used to measure one-dimensional sample expansion or contraction (resolution <50 nm). The tests were conducted at a constant temperature of 40 °C, and CO2 pressures up to 100 MPa. Our results show that the matrix samples reveal anisotropic expansion over the full range of CO2 pressures used. Expansion perpendicular to the bedding was about 1.4 times the average expansion measured in the bedding plane. Net volumetric strains, which were computed from the net linear strain in all directions measured, reveal that the response of coal is characterised by an expansion-dominated stage below 10–20 MPa of CO2 pressure and a contraction-dominated stage at higher CO2 pressures. Our data demonstrate direct competition between adsorption-induced swelling and elastic compression in the coal matrix. We propose a model for coal swelling, which expresses the net volumetric strain as the sum of the adsorption-induced swelling strain and the elastic compression with the adsorption-induced swelling being taken as linearly related to adsorbed CO2 concentration. A comparison of experimentally determined adsorption-induced swelling strain with the adsorbed concentration of CO2 (data Gensterblum et al., 2010) confirms the assumed linear dependence. We go on to compare our experimentally determined adsorption-induced swelling strains to those calculated from an adsorbed concentration model. Good agreement was found over the full range of CO2 pressures up to 100 MPa. This shows that combining this thermodynamically based model for adsorbed concentration with the elastic compression of our samples, obtained from their bulk modulus, provides a good description of the measured volumetric behaviour of our samples, and suggests that the physical basis for the model is also valid.The implications of our results for ECBM operations are that compliant coals (low K), which exhibit little adsorption-induced swelling (hence low dependence C), will show relatively small reductions or even increases in permeability due to competition between swelling and compression when CO2 pressure increases during ECBM operations. These coals will tend to be more suitable for ECBM operations. Coals exhibiting high stiffness (K) and high adsorption capacity are less suitable for ECBM." @default.
• W2019203114 created "2016-06-24" @default.
• W2019203114 creator A5008733982 @default.
• W2019203114 creator A5039853102 @default.
• W2019203114 date "2012-11-01" @default.
• W2019203114 modified "2023-09-30" @default.
• W2019203114 title "Competition between adsorption-induced swelling and elastic compression of coal at CO2 pressures up to 100MPa" @default.
• W2019203114 cites W1963835762 @default.
• W2019203114 cites W1964100234 @default.
• W2019203114 cites W1968296938 @default.
• W2019203114 cites W1972806657 @default.
• W2019203114 cites W1975248888 @default.
• W2019203114 cites W1976772389 @default.
• W2019203114 cites W1985824961 @default.
• W2019203114 cites W1986714070 @default.
• W2019203114 cites W1988292817 @default.
• W2019203114 cites W1990030951 @default.
• W2019203114 cites W1993590418 @default.
• W2019203114 cites W2015040785 @default.
• W2019203114 cites W2016696365 @default.
• W2019203114 cites W2018841066 @default.
• W2019203114 cites W2024021939 @default.
• W2019203114 cites W2028080392 @default.
• W2019203114 cites W2029901361 @default.
• W2019203114 cites W2037192548 @default.
• W2019203114 cites W2046725649 @default.
• W2019203114 cites W2053413319 @default.
• W2019203114 cites W2065316249 @default.
• W2019203114 cites W2067772197 @default.
• W2019203114 cites W2071277175 @default.
• W2019203114 cites W2072425504 @default.
• W2019203114 cites W2075043238 @default.
• W2019203114 cites W2076648954 @default.
• W2019203114 cites W2081910345 @default.
• W2019203114 cites W2089134089 @default.
• W2019203114 cites W2090522248 @default.
• W2019203114 cites W2095036557 @default.
• W2019203114 cites W2095553326 @default.
• W2019203114 cites W2108636166 @default.
• W2019203114 cites W2113453716 @default.
• W2019203114 cites W2118160080 @default.
• W2019203114 cites W2121364739 @default.
• W2019203114 cites W2135551690 @default.
• W2019203114 cites W2135831085 @default.
• W2019203114 cites W4235369707 @default.
• W2019203114 doi "https://doi.org/10.1016/j.jmps.2012.06.012" @default.
• W2019203114 hasPublicationYear "2012" @default.
• W2019203114 type Work @default.
• W2019203114 sameAs 2019203114 @default.
• W2019203114 citedByCount "89" @default.
• W2019203114 countsByYear W20192031142013 @default.
• W2019203114 countsByYear W20192031142014 @default.
• W2019203114 countsByYear W20192031142015 @default.
• W2019203114 countsByYear W20192031142016 @default.
• W2019203114 countsByYear W20192031142017 @default.
• W2019203114 countsByYear W20192031142018 @default.
• W2019203114 countsByYear W20192031142019 @default.
• W2019203114 countsByYear W20192031142020 @default.
• W2019203114 countsByYear W20192031142021 @default.
• W2019203114 countsByYear W20192031142022 @default.
• W2019203114 countsByYear W20192031142023 @default.
• W2019203114 crossrefType "journal-article" @default.
• W2019203114 hasAuthorship W2019203114A5008733982 @default.
• W2019203114 hasAuthorship W2019203114A5039853102 @default.
• W2019203114 hasConcept C127313418 @default.
• W2019203114 hasConcept C127413603 @default.
• W2019203114 hasConcept C150394285 @default.
• W2019203114 hasConcept C159985019 @default.
• W2019203114 hasConcept C178790620 @default.
• W2019203114 hasConcept C180016635 @default.
• W2019203114 hasConcept C185592680 @default.
• W2019203114 hasConcept C187320778 @default.
• W2019203114 hasConcept C18903297 @default.
• W2019203114 hasConcept C192562407 @default.
• W2019203114 hasConcept C2778540859 @default.
• W2019203114 hasConcept C518851703 @default.
• W2019203114 hasConcept C548081761 @default.
• W2019203114 hasConcept C86803240 @default.
• W2019203114 hasConcept C91306197 @default.
• W2019203114 hasConceptScore W2019203114C127313418 @default.
• W2019203114 hasConceptScore W2019203114C127413603 @default.
• W2019203114 hasConceptScore W2019203114C150394285 @default.
• W2019203114 hasConceptScore W2019203114C159985019 @default.
• W2019203114 hasConceptScore W2019203114C178790620 @default.
• W2019203114 hasConceptScore W2019203114C180016635 @default.
• W2019203114 hasConceptScore W2019203114C185592680 @default.
• W2019203114 hasConceptScore W2019203114C187320778 @default.
• W2019203114 hasConceptScore W2019203114C18903297 @default.
• W2019203114 hasConceptScore W2019203114C192562407 @default.
• W2019203114 hasConceptScore W2019203114C2778540859 @default.
• W2019203114 hasConceptScore W2019203114C518851703 @default.
• W2019203114 hasConceptScore W2019203114C548081761 @default.
• W2019203114 hasConceptScore W2019203114C86803240 @default.
• W2019203114 hasConceptScore W2019203114C91306197 @default.
• W2019203114 hasIssue "11" @default.
• W2019203114 hasLocation W20192031141 @default.
• W2019203114 hasOpenAccess W2019203114 @default.
• W2019203114 hasPrimaryLocation W20192031141 @default.

• next