Influence of different $ CO_{2} $ phase states on fluid flow pathways in coal: insights from image reconstruction and fractal study
Abstract The $ CO_{2} $ phase state changes during the long-term interaction with coal seams. A proper understanding of the influence of different $ CO_{2} $ phase states in water-bearing coal seams is of great significance in evaluating the leakage risk during $ CO_{2} $ sequestration. The evolutio...
Ausführliche Beschreibung
Autor*in: |
Luo, Peng [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
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2023 |
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Anmerkung: |
© Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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Übergeordnetes Werk: |
Enthalten in: Bulletin of engineering geology and the environment - Berlin : Springer, 1970, 82(2023), 7 vom: 22. Juni |
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Übergeordnetes Werk: |
volume:82 ; year:2023 ; number:7 ; day:22 ; month:06 |
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DOI / URN: |
10.1007/s10064-023-03322-0 |
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SPR051991454 |
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245 | 1 | 0 | |a Influence of different $ CO_{2} $ phase states on fluid flow pathways in coal: insights from image reconstruction and fractal study |
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520 | |a Abstract The $ CO_{2} $ phase state changes during the long-term interaction with coal seams. A proper understanding of the influence of different $ CO_{2} $ phase states in water-bearing coal seams is of great significance in evaluating the leakage risk during $ CO_{2} $ sequestration. The evolution of fluid flow pathways in water-bearing coal subjected to the treatment of different $ CO_{2} $ phase states was investigated by using X-ray computed tomography (CT) technology, fractal dimension, and three-dimensional (3D) pore-scale flow modeling. The results show that the supercritical $ CO_{2} $ ($ ScCO_{2} $) treatment reduced the coal heterogeneity by 12.69% and increased the absolute permeability by 58.75%. Conversely, only 0.71% of coal heterogeneity reduction occurred after subcritical $ CO_{2} $ ($ SubCO_{2} $) treatment, increasing the absolute permeability by 24.91%. The reduction in the tortuosity fractal dimension after $ ScCO_{2} $ treatment was 2.69% larger than that of $ SubCO_{2} $ treatment, indicating that $ ScCO_{2} $ treatment was more favorable for improving the transport capacity of flow pathways. The pressure field distributions in the pore network model (PNM) were determined by coal heterogeneity and influenced by the number of flow pathways. The effect of $ ScCO_{2} $ treatment on the size, quantity, and location of preferential flow pathways in coal is more significant than that of $ SubCO_{2} $ treatment. Moreover, the proportion of preferential flow pathways in $ ScCO_{2} $-treated coal was less than 50%, much lower than that of the throats in PNMs. In contrast, the proportion of preferential flow pathways in $ SubCO_{2} $-treated coal was approximately 30% higher than that in $ ScCO_{2} $-treated coal. The distribution of preferential flow pathways also indicated that not all pores with larger radii participated in preferential flow. Furthermore, more than 50% of the pathways in the $ ScCO_{2} $-treated coal did not contribute to fluid flow, and could affect the stability of the coal seam. | ||
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700 | 1 | |a Zhang, Lei |4 aut | |
700 | 1 | |a Liu, Xiaoqian |4 aut | |
700 | 1 | |a Liu, Xiaobo |4 aut | |
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10.1007/s10064-023-03322-0 doi (DE-627)SPR051991454 (SPR)s10064-023-03322-0-e DE-627 ger DE-627 rakwb eng Luo, Peng verfasserin aut Influence of different $ CO_{2} $ phase states on fluid flow pathways in coal: insights from image reconstruction and fractal study 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract The $ CO_{2} $ phase state changes during the long-term interaction with coal seams. A proper understanding of the influence of different $ CO_{2} $ phase states in water-bearing coal seams is of great significance in evaluating the leakage risk during $ CO_{2} $ sequestration. The evolution of fluid flow pathways in water-bearing coal subjected to the treatment of different $ CO_{2} $ phase states was investigated by using X-ray computed tomography (CT) technology, fractal dimension, and three-dimensional (3D) pore-scale flow modeling. The results show that the supercritical $ CO_{2} $ ($ ScCO_{2} $) treatment reduced the coal heterogeneity by 12.69% and increased the absolute permeability by 58.75%. Conversely, only 0.71% of coal heterogeneity reduction occurred after subcritical $ CO_{2} $ ($ SubCO_{2} $) treatment, increasing the absolute permeability by 24.91%. The reduction in the tortuosity fractal dimension after $ ScCO_{2} $ treatment was 2.69% larger than that of $ SubCO_{2} $ treatment, indicating that $ ScCO_{2} $ treatment was more favorable for improving the transport capacity of flow pathways. The pressure field distributions in the pore network model (PNM) were determined by coal heterogeneity and influenced by the number of flow pathways. The effect of $ ScCO_{2} $ treatment on the size, quantity, and location of preferential flow pathways in coal is more significant than that of $ SubCO_{2} $ treatment. Moreover, the proportion of preferential flow pathways in $ ScCO_{2} $-treated coal was less than 50%, much lower than that of the throats in PNMs. In contrast, the proportion of preferential flow pathways in $ SubCO_{2} $-treated coal was approximately 30% higher than that in $ ScCO_{2} $-treated coal. The distribution of preferential flow pathways also indicated that not all pores with larger radii participated in preferential flow. Furthermore, more than 50% of the pathways in the $ ScCO_{2} $-treated coal did not contribute to fluid flow, and could affect the stability of the coal seam. CO (dpeaa)DE-He213 geological sequestration (dpeaa)DE-He213 CO (dpeaa)DE-He213 leakage (dpeaa)DE-He213 CO (dpeaa)DE-He213 -water-coal interactions (dpeaa)DE-He213 Fractal dimension of tortuosity (dpeaa)DE-He213 Preferential flow pathways (dpeaa)DE-He213 Zhang, Zhenyu (orcid)0000-0002-2309-3145 aut Zhang, Lei aut Liu, Xiaoqian aut Liu, Xiaobo aut Enthalten in Bulletin of engineering geology and the environment Berlin : Springer, 1970 82(2023), 7 vom: 22. Juni (DE-627)271597011 (DE-600)1480689-7 1435-9537 nnns volume:82 year:2023 number:7 day:22 month:06 https://dx.doi.org/10.1007/s10064-023-03322-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 82 2023 7 22 06 |
spelling |
10.1007/s10064-023-03322-0 doi (DE-627)SPR051991454 (SPR)s10064-023-03322-0-e DE-627 ger DE-627 rakwb eng Luo, Peng verfasserin aut Influence of different $ CO_{2} $ phase states on fluid flow pathways in coal: insights from image reconstruction and fractal study 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract The $ CO_{2} $ phase state changes during the long-term interaction with coal seams. A proper understanding of the influence of different $ CO_{2} $ phase states in water-bearing coal seams is of great significance in evaluating the leakage risk during $ CO_{2} $ sequestration. The evolution of fluid flow pathways in water-bearing coal subjected to the treatment of different $ CO_{2} $ phase states was investigated by using X-ray computed tomography (CT) technology, fractal dimension, and three-dimensional (3D) pore-scale flow modeling. The results show that the supercritical $ CO_{2} $ ($ ScCO_{2} $) treatment reduced the coal heterogeneity by 12.69% and increased the absolute permeability by 58.75%. Conversely, only 0.71% of coal heterogeneity reduction occurred after subcritical $ CO_{2} $ ($ SubCO_{2} $) treatment, increasing the absolute permeability by 24.91%. The reduction in the tortuosity fractal dimension after $ ScCO_{2} $ treatment was 2.69% larger than that of $ SubCO_{2} $ treatment, indicating that $ ScCO_{2} $ treatment was more favorable for improving the transport capacity of flow pathways. The pressure field distributions in the pore network model (PNM) were determined by coal heterogeneity and influenced by the number of flow pathways. The effect of $ ScCO_{2} $ treatment on the size, quantity, and location of preferential flow pathways in coal is more significant than that of $ SubCO_{2} $ treatment. Moreover, the proportion of preferential flow pathways in $ ScCO_{2} $-treated coal was less than 50%, much lower than that of the throats in PNMs. In contrast, the proportion of preferential flow pathways in $ SubCO_{2} $-treated coal was approximately 30% higher than that in $ ScCO_{2} $-treated coal. The distribution of preferential flow pathways also indicated that not all pores with larger radii participated in preferential flow. Furthermore, more than 50% of the pathways in the $ ScCO_{2} $-treated coal did not contribute to fluid flow, and could affect the stability of the coal seam. CO (dpeaa)DE-He213 geological sequestration (dpeaa)DE-He213 CO (dpeaa)DE-He213 leakage (dpeaa)DE-He213 CO (dpeaa)DE-He213 -water-coal interactions (dpeaa)DE-He213 Fractal dimension of tortuosity (dpeaa)DE-He213 Preferential flow pathways (dpeaa)DE-He213 Zhang, Zhenyu (orcid)0000-0002-2309-3145 aut Zhang, Lei aut Liu, Xiaoqian aut Liu, Xiaobo aut Enthalten in Bulletin of engineering geology and the environment Berlin : Springer, 1970 82(2023), 7 vom: 22. Juni (DE-627)271597011 (DE-600)1480689-7 1435-9537 nnns volume:82 year:2023 number:7 day:22 month:06 https://dx.doi.org/10.1007/s10064-023-03322-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 82 2023 7 22 06 |
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10.1007/s10064-023-03322-0 doi (DE-627)SPR051991454 (SPR)s10064-023-03322-0-e DE-627 ger DE-627 rakwb eng Luo, Peng verfasserin aut Influence of different $ CO_{2} $ phase states on fluid flow pathways in coal: insights from image reconstruction and fractal study 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract The $ CO_{2} $ phase state changes during the long-term interaction with coal seams. A proper understanding of the influence of different $ CO_{2} $ phase states in water-bearing coal seams is of great significance in evaluating the leakage risk during $ CO_{2} $ sequestration. The evolution of fluid flow pathways in water-bearing coal subjected to the treatment of different $ CO_{2} $ phase states was investigated by using X-ray computed tomography (CT) technology, fractal dimension, and three-dimensional (3D) pore-scale flow modeling. The results show that the supercritical $ CO_{2} $ ($ ScCO_{2} $) treatment reduced the coal heterogeneity by 12.69% and increased the absolute permeability by 58.75%. Conversely, only 0.71% of coal heterogeneity reduction occurred after subcritical $ CO_{2} $ ($ SubCO_{2} $) treatment, increasing the absolute permeability by 24.91%. The reduction in the tortuosity fractal dimension after $ ScCO_{2} $ treatment was 2.69% larger than that of $ SubCO_{2} $ treatment, indicating that $ ScCO_{2} $ treatment was more favorable for improving the transport capacity of flow pathways. The pressure field distributions in the pore network model (PNM) were determined by coal heterogeneity and influenced by the number of flow pathways. The effect of $ ScCO_{2} $ treatment on the size, quantity, and location of preferential flow pathways in coal is more significant than that of $ SubCO_{2} $ treatment. Moreover, the proportion of preferential flow pathways in $ ScCO_{2} $-treated coal was less than 50%, much lower than that of the throats in PNMs. In contrast, the proportion of preferential flow pathways in $ SubCO_{2} $-treated coal was approximately 30% higher than that in $ ScCO_{2} $-treated coal. The distribution of preferential flow pathways also indicated that not all pores with larger radii participated in preferential flow. Furthermore, more than 50% of the pathways in the $ ScCO_{2} $-treated coal did not contribute to fluid flow, and could affect the stability of the coal seam. CO (dpeaa)DE-He213 geological sequestration (dpeaa)DE-He213 CO (dpeaa)DE-He213 leakage (dpeaa)DE-He213 CO (dpeaa)DE-He213 -water-coal interactions (dpeaa)DE-He213 Fractal dimension of tortuosity (dpeaa)DE-He213 Preferential flow pathways (dpeaa)DE-He213 Zhang, Zhenyu (orcid)0000-0002-2309-3145 aut Zhang, Lei aut Liu, Xiaoqian aut Liu, Xiaobo aut Enthalten in Bulletin of engineering geology and the environment Berlin : Springer, 1970 82(2023), 7 vom: 22. Juni (DE-627)271597011 (DE-600)1480689-7 1435-9537 nnns volume:82 year:2023 number:7 day:22 month:06 https://dx.doi.org/10.1007/s10064-023-03322-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 82 2023 7 22 06 |
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10.1007/s10064-023-03322-0 doi (DE-627)SPR051991454 (SPR)s10064-023-03322-0-e DE-627 ger DE-627 rakwb eng Luo, Peng verfasserin aut Influence of different $ CO_{2} $ phase states on fluid flow pathways in coal: insights from image reconstruction and fractal study 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract The $ CO_{2} $ phase state changes during the long-term interaction with coal seams. A proper understanding of the influence of different $ CO_{2} $ phase states in water-bearing coal seams is of great significance in evaluating the leakage risk during $ CO_{2} $ sequestration. The evolution of fluid flow pathways in water-bearing coal subjected to the treatment of different $ CO_{2} $ phase states was investigated by using X-ray computed tomography (CT) technology, fractal dimension, and three-dimensional (3D) pore-scale flow modeling. The results show that the supercritical $ CO_{2} $ ($ ScCO_{2} $) treatment reduced the coal heterogeneity by 12.69% and increased the absolute permeability by 58.75%. Conversely, only 0.71% of coal heterogeneity reduction occurred after subcritical $ CO_{2} $ ($ SubCO_{2} $) treatment, increasing the absolute permeability by 24.91%. The reduction in the tortuosity fractal dimension after $ ScCO_{2} $ treatment was 2.69% larger than that of $ SubCO_{2} $ treatment, indicating that $ ScCO_{2} $ treatment was more favorable for improving the transport capacity of flow pathways. The pressure field distributions in the pore network model (PNM) were determined by coal heterogeneity and influenced by the number of flow pathways. The effect of $ ScCO_{2} $ treatment on the size, quantity, and location of preferential flow pathways in coal is more significant than that of $ SubCO_{2} $ treatment. Moreover, the proportion of preferential flow pathways in $ ScCO_{2} $-treated coal was less than 50%, much lower than that of the throats in PNMs. In contrast, the proportion of preferential flow pathways in $ SubCO_{2} $-treated coal was approximately 30% higher than that in $ ScCO_{2} $-treated coal. The distribution of preferential flow pathways also indicated that not all pores with larger radii participated in preferential flow. Furthermore, more than 50% of the pathways in the $ ScCO_{2} $-treated coal did not contribute to fluid flow, and could affect the stability of the coal seam. CO (dpeaa)DE-He213 geological sequestration (dpeaa)DE-He213 CO (dpeaa)DE-He213 leakage (dpeaa)DE-He213 CO (dpeaa)DE-He213 -water-coal interactions (dpeaa)DE-He213 Fractal dimension of tortuosity (dpeaa)DE-He213 Preferential flow pathways (dpeaa)DE-He213 Zhang, Zhenyu (orcid)0000-0002-2309-3145 aut Zhang, Lei aut Liu, Xiaoqian aut Liu, Xiaobo aut Enthalten in Bulletin of engineering geology and the environment Berlin : Springer, 1970 82(2023), 7 vom: 22. Juni (DE-627)271597011 (DE-600)1480689-7 1435-9537 nnns volume:82 year:2023 number:7 day:22 month:06 https://dx.doi.org/10.1007/s10064-023-03322-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 82 2023 7 22 06 |
allfieldsSound |
10.1007/s10064-023-03322-0 doi (DE-627)SPR051991454 (SPR)s10064-023-03322-0-e DE-627 ger DE-627 rakwb eng Luo, Peng verfasserin aut Influence of different $ CO_{2} $ phase states on fluid flow pathways in coal: insights from image reconstruction and fractal study 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract The $ CO_{2} $ phase state changes during the long-term interaction with coal seams. A proper understanding of the influence of different $ CO_{2} $ phase states in water-bearing coal seams is of great significance in evaluating the leakage risk during $ CO_{2} $ sequestration. The evolution of fluid flow pathways in water-bearing coal subjected to the treatment of different $ CO_{2} $ phase states was investigated by using X-ray computed tomography (CT) technology, fractal dimension, and three-dimensional (3D) pore-scale flow modeling. The results show that the supercritical $ CO_{2} $ ($ ScCO_{2} $) treatment reduced the coal heterogeneity by 12.69% and increased the absolute permeability by 58.75%. Conversely, only 0.71% of coal heterogeneity reduction occurred after subcritical $ CO_{2} $ ($ SubCO_{2} $) treatment, increasing the absolute permeability by 24.91%. The reduction in the tortuosity fractal dimension after $ ScCO_{2} $ treatment was 2.69% larger than that of $ SubCO_{2} $ treatment, indicating that $ ScCO_{2} $ treatment was more favorable for improving the transport capacity of flow pathways. The pressure field distributions in the pore network model (PNM) were determined by coal heterogeneity and influenced by the number of flow pathways. The effect of $ ScCO_{2} $ treatment on the size, quantity, and location of preferential flow pathways in coal is more significant than that of $ SubCO_{2} $ treatment. Moreover, the proportion of preferential flow pathways in $ ScCO_{2} $-treated coal was less than 50%, much lower than that of the throats in PNMs. In contrast, the proportion of preferential flow pathways in $ SubCO_{2} $-treated coal was approximately 30% higher than that in $ ScCO_{2} $-treated coal. The distribution of preferential flow pathways also indicated that not all pores with larger radii participated in preferential flow. Furthermore, more than 50% of the pathways in the $ ScCO_{2} $-treated coal did not contribute to fluid flow, and could affect the stability of the coal seam. CO (dpeaa)DE-He213 geological sequestration (dpeaa)DE-He213 CO (dpeaa)DE-He213 leakage (dpeaa)DE-He213 CO (dpeaa)DE-He213 -water-coal interactions (dpeaa)DE-He213 Fractal dimension of tortuosity (dpeaa)DE-He213 Preferential flow pathways (dpeaa)DE-He213 Zhang, Zhenyu (orcid)0000-0002-2309-3145 aut Zhang, Lei aut Liu, Xiaoqian aut Liu, Xiaobo aut Enthalten in Bulletin of engineering geology and the environment Berlin : Springer, 1970 82(2023), 7 vom: 22. Juni (DE-627)271597011 (DE-600)1480689-7 1435-9537 nnns volume:82 year:2023 number:7 day:22 month:06 https://dx.doi.org/10.1007/s10064-023-03322-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 82 2023 7 22 06 |
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Enthalten in Bulletin of engineering geology and the environment 82(2023), 7 vom: 22. Juni volume:82 year:2023 number:7 day:22 month:06 |
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Luo, Peng |
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Luo, Peng misc CO misc geological sequestration misc leakage misc -water-coal interactions misc Fractal dimension of tortuosity misc Preferential flow pathways Influence of different $ CO_{2} $ phase states on fluid flow pathways in coal: insights from image reconstruction and fractal study |
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Influence of different $ CO_{2} $ phase states on fluid flow pathways in coal: insights from image reconstruction and fractal study CO (dpeaa)DE-He213 geological sequestration (dpeaa)DE-He213 leakage (dpeaa)DE-He213 -water-coal interactions (dpeaa)DE-He213 Fractal dimension of tortuosity (dpeaa)DE-He213 Preferential flow pathways (dpeaa)DE-He213 |
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Influence of different $ CO_{2} $ phase states on fluid flow pathways in coal: insights from image reconstruction and fractal study |
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influence of different $ co_{2} $ phase states on fluid flow pathways in coal: insights from image reconstruction and fractal study |
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Influence of different $ CO_{2} $ phase states on fluid flow pathways in coal: insights from image reconstruction and fractal study |
abstract |
Abstract The $ CO_{2} $ phase state changes during the long-term interaction with coal seams. A proper understanding of the influence of different $ CO_{2} $ phase states in water-bearing coal seams is of great significance in evaluating the leakage risk during $ CO_{2} $ sequestration. The evolution of fluid flow pathways in water-bearing coal subjected to the treatment of different $ CO_{2} $ phase states was investigated by using X-ray computed tomography (CT) technology, fractal dimension, and three-dimensional (3D) pore-scale flow modeling. The results show that the supercritical $ CO_{2} $ ($ ScCO_{2} $) treatment reduced the coal heterogeneity by 12.69% and increased the absolute permeability by 58.75%. Conversely, only 0.71% of coal heterogeneity reduction occurred after subcritical $ CO_{2} $ ($ SubCO_{2} $) treatment, increasing the absolute permeability by 24.91%. The reduction in the tortuosity fractal dimension after $ ScCO_{2} $ treatment was 2.69% larger than that of $ SubCO_{2} $ treatment, indicating that $ ScCO_{2} $ treatment was more favorable for improving the transport capacity of flow pathways. The pressure field distributions in the pore network model (PNM) were determined by coal heterogeneity and influenced by the number of flow pathways. The effect of $ ScCO_{2} $ treatment on the size, quantity, and location of preferential flow pathways in coal is more significant than that of $ SubCO_{2} $ treatment. Moreover, the proportion of preferential flow pathways in $ ScCO_{2} $-treated coal was less than 50%, much lower than that of the throats in PNMs. In contrast, the proportion of preferential flow pathways in $ SubCO_{2} $-treated coal was approximately 30% higher than that in $ ScCO_{2} $-treated coal. The distribution of preferential flow pathways also indicated that not all pores with larger radii participated in preferential flow. Furthermore, more than 50% of the pathways in the $ ScCO_{2} $-treated coal did not contribute to fluid flow, and could affect the stability of the coal seam. © Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
abstractGer |
Abstract The $ CO_{2} $ phase state changes during the long-term interaction with coal seams. A proper understanding of the influence of different $ CO_{2} $ phase states in water-bearing coal seams is of great significance in evaluating the leakage risk during $ CO_{2} $ sequestration. The evolution of fluid flow pathways in water-bearing coal subjected to the treatment of different $ CO_{2} $ phase states was investigated by using X-ray computed tomography (CT) technology, fractal dimension, and three-dimensional (3D) pore-scale flow modeling. The results show that the supercritical $ CO_{2} $ ($ ScCO_{2} $) treatment reduced the coal heterogeneity by 12.69% and increased the absolute permeability by 58.75%. Conversely, only 0.71% of coal heterogeneity reduction occurred after subcritical $ CO_{2} $ ($ SubCO_{2} $) treatment, increasing the absolute permeability by 24.91%. The reduction in the tortuosity fractal dimension after $ ScCO_{2} $ treatment was 2.69% larger than that of $ SubCO_{2} $ treatment, indicating that $ ScCO_{2} $ treatment was more favorable for improving the transport capacity of flow pathways. The pressure field distributions in the pore network model (PNM) were determined by coal heterogeneity and influenced by the number of flow pathways. The effect of $ ScCO_{2} $ treatment on the size, quantity, and location of preferential flow pathways in coal is more significant than that of $ SubCO_{2} $ treatment. Moreover, the proportion of preferential flow pathways in $ ScCO_{2} $-treated coal was less than 50%, much lower than that of the throats in PNMs. In contrast, the proportion of preferential flow pathways in $ SubCO_{2} $-treated coal was approximately 30% higher than that in $ ScCO_{2} $-treated coal. The distribution of preferential flow pathways also indicated that not all pores with larger radii participated in preferential flow. Furthermore, more than 50% of the pathways in the $ ScCO_{2} $-treated coal did not contribute to fluid flow, and could affect the stability of the coal seam. © Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
abstract_unstemmed |
Abstract The $ CO_{2} $ phase state changes during the long-term interaction with coal seams. A proper understanding of the influence of different $ CO_{2} $ phase states in water-bearing coal seams is of great significance in evaluating the leakage risk during $ CO_{2} $ sequestration. The evolution of fluid flow pathways in water-bearing coal subjected to the treatment of different $ CO_{2} $ phase states was investigated by using X-ray computed tomography (CT) technology, fractal dimension, and three-dimensional (3D) pore-scale flow modeling. The results show that the supercritical $ CO_{2} $ ($ ScCO_{2} $) treatment reduced the coal heterogeneity by 12.69% and increased the absolute permeability by 58.75%. Conversely, only 0.71% of coal heterogeneity reduction occurred after subcritical $ CO_{2} $ ($ SubCO_{2} $) treatment, increasing the absolute permeability by 24.91%. The reduction in the tortuosity fractal dimension after $ ScCO_{2} $ treatment was 2.69% larger than that of $ SubCO_{2} $ treatment, indicating that $ ScCO_{2} $ treatment was more favorable for improving the transport capacity of flow pathways. The pressure field distributions in the pore network model (PNM) were determined by coal heterogeneity and influenced by the number of flow pathways. The effect of $ ScCO_{2} $ treatment on the size, quantity, and location of preferential flow pathways in coal is more significant than that of $ SubCO_{2} $ treatment. Moreover, the proportion of preferential flow pathways in $ ScCO_{2} $-treated coal was less than 50%, much lower than that of the throats in PNMs. In contrast, the proportion of preferential flow pathways in $ SubCO_{2} $-treated coal was approximately 30% higher than that in $ ScCO_{2} $-treated coal. The distribution of preferential flow pathways also indicated that not all pores with larger radii participated in preferential flow. Furthermore, more than 50% of the pathways in the $ ScCO_{2} $-treated coal did not contribute to fluid flow, and could affect the stability of the coal seam. © Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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7 |
title_short |
Influence of different $ CO_{2} $ phase states on fluid flow pathways in coal: insights from image reconstruction and fractal study |
url |
https://dx.doi.org/10.1007/s10064-023-03322-0 |
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author2 |
Zhang, Zhenyu Zhang, Lei Liu, Xiaoqian Liu, Xiaobo |
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Zhang, Zhenyu Zhang, Lei Liu, Xiaoqian Liu, Xiaobo |
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doi_str |
10.1007/s10064-023-03322-0 |
up_date |
2024-07-04T00:47:14.738Z |
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score |
7.4005127 |