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Relative permeability for water and gas through fractures in cement
Relative permeability is an important attribute influencing subsurface multiphase flow. Characterization of relative permeability is necessary to support activities such as carbon sequestration, geothermal energy production, and oil and gas exploration. Previous research efforts have largely neglect...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6343898/ https://www.ncbi.nlm.nih.gov/pubmed/30673742 http://dx.doi.org/10.1371/journal.pone.0210741 |
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author | Rod, Kenton A. Um, Wooyong Colby, Sean M. Rockhold, Mark L. Strickland, Christopher E. Han, Sangsoo Kuprat, Andrew P. |
author_facet | Rod, Kenton A. Um, Wooyong Colby, Sean M. Rockhold, Mark L. Strickland, Christopher E. Han, Sangsoo Kuprat, Andrew P. |
author_sort | Rod, Kenton A. |
collection | PubMed |
description | Relative permeability is an important attribute influencing subsurface multiphase flow. Characterization of relative permeability is necessary to support activities such as carbon sequestration, geothermal energy production, and oil and gas exploration. Previous research efforts have largely neglected the relative permeability of wellbore cement used to seal well bores where risks of leak are significant. Therefore this study was performed to evaluate fracturing on permeability and relative permeability of wellbore cement. Studies of relative permeability of water and air were conducted using ordinary Portland cement paste cylinders having fracture networks that exhibited a range of permeability values. The measured relative permeability was compared with three models, 1) Corey-curve, often used for modeling relative permeability in porous media, 2) X-curve, commonly used to represent relative permeability of fractures, and 3) Burdine model based on fitting the Brooks-Corey function to fracture saturation-pressure data inferred from x-ray computed tomography (XCT) derived aperture distribution results. Experimentally-determined aqueous relative permeability was best described by the Burdine model. Though water phase tended to follow the Corey-curve for the simple fracture system while air relative permeability was best described by the X-curve. |
format | Online Article Text |
id | pubmed-6343898 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-63438982019-02-02 Relative permeability for water and gas through fractures in cement Rod, Kenton A. Um, Wooyong Colby, Sean M. Rockhold, Mark L. Strickland, Christopher E. Han, Sangsoo Kuprat, Andrew P. PLoS One Research Article Relative permeability is an important attribute influencing subsurface multiphase flow. Characterization of relative permeability is necessary to support activities such as carbon sequestration, geothermal energy production, and oil and gas exploration. Previous research efforts have largely neglected the relative permeability of wellbore cement used to seal well bores where risks of leak are significant. Therefore this study was performed to evaluate fracturing on permeability and relative permeability of wellbore cement. Studies of relative permeability of water and air were conducted using ordinary Portland cement paste cylinders having fracture networks that exhibited a range of permeability values. The measured relative permeability was compared with three models, 1) Corey-curve, often used for modeling relative permeability in porous media, 2) X-curve, commonly used to represent relative permeability of fractures, and 3) Burdine model based on fitting the Brooks-Corey function to fracture saturation-pressure data inferred from x-ray computed tomography (XCT) derived aperture distribution results. Experimentally-determined aqueous relative permeability was best described by the Burdine model. Though water phase tended to follow the Corey-curve for the simple fracture system while air relative permeability was best described by the X-curve. Public Library of Science 2019-01-23 /pmc/articles/PMC6343898/ /pubmed/30673742 http://dx.doi.org/10.1371/journal.pone.0210741 Text en © 2019 Rod et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Rod, Kenton A. Um, Wooyong Colby, Sean M. Rockhold, Mark L. Strickland, Christopher E. Han, Sangsoo Kuprat, Andrew P. Relative permeability for water and gas through fractures in cement |
title | Relative permeability for water and gas through fractures in cement |
title_full | Relative permeability for water and gas through fractures in cement |
title_fullStr | Relative permeability for water and gas through fractures in cement |
title_full_unstemmed | Relative permeability for water and gas through fractures in cement |
title_short | Relative permeability for water and gas through fractures in cement |
title_sort | relative permeability for water and gas through fractures in cement |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6343898/ https://www.ncbi.nlm.nih.gov/pubmed/30673742 http://dx.doi.org/10.1371/journal.pone.0210741 |
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