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Modeling of the movement of rich gas in a porous medium in immiscible, near miscible and miscible conditions
Gas injection is one of the most common enhanced oil recovery techniques in oil reservoirs. In this regard, pure gas, such as carbon dioxide (CO(2)), nitrogen (N(2)), and methane (CH(4)) was employed in EOR process. The performance of pure gases in EOR have been investigated numerically, but till no...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10121694/ https://www.ncbi.nlm.nih.gov/pubmed/37085713 http://dx.doi.org/10.1038/s41598-023-33833-5 |
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author | Mehrjoo, Hossein Safaei, Ali Kazemzadeh, Yousef Riazi, Masoud Cortés, Farid B. |
author_facet | Mehrjoo, Hossein Safaei, Ali Kazemzadeh, Yousef Riazi, Masoud Cortés, Farid B. |
author_sort | Mehrjoo, Hossein |
collection | PubMed |
description | Gas injection is one of the most common enhanced oil recovery techniques in oil reservoirs. In this regard, pure gas, such as carbon dioxide (CO(2)), nitrogen (N(2)), and methane (CH(4)) was employed in EOR process. The performance of pure gases in EOR have been investigated numerically, but till now, numerical simulation of injection of rich gases has been scared. As rich gases are more economical and can result in acceptable oil recovery, numerical study of the performance of rich gases in EOR can be an interesting subject. Accordingly, in the present work the performance of rich gases in the gas injection process was investigated. Methane has been riched in liquefied petroleum gas (LPG), natural gas liquid (NGL), and Naphtha. Afterwards, the process of gas injection was simulated and the effect of injection fluids on the relative permeability, saturation profile of gas, and fractional flow of gas was studied. Our results showed that as naphtha is a heavier gas than the two other ones, IFT of oil-rich gas with naphtha is lower than other two systems. Based our results, gas oil ratio (GOR) and injection pressure did not affect the final performance of injection gas that has been riched in NGL and LPG. However, when GOR was 1.25 MSCF/STB, rich gas with naphtha moved with a higher speed in the domain and the relative permeability of each fluid and fractional flow of gas were affected. The same result was achieved at higher injection pressure. When injection pressure was 2000 psi, movement of gas with higher speed in the domain, alteration of relative permeability and changes in the fractional flow of gas were obvious. Therefore, based on our result, injection of naphtha with low pressure and high GOR was suggested for considered oil. |
format | Online Article Text |
id | pubmed-10121694 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-101216942023-04-23 Modeling of the movement of rich gas in a porous medium in immiscible, near miscible and miscible conditions Mehrjoo, Hossein Safaei, Ali Kazemzadeh, Yousef Riazi, Masoud Cortés, Farid B. Sci Rep Article Gas injection is one of the most common enhanced oil recovery techniques in oil reservoirs. In this regard, pure gas, such as carbon dioxide (CO(2)), nitrogen (N(2)), and methane (CH(4)) was employed in EOR process. The performance of pure gases in EOR have been investigated numerically, but till now, numerical simulation of injection of rich gases has been scared. As rich gases are more economical and can result in acceptable oil recovery, numerical study of the performance of rich gases in EOR can be an interesting subject. Accordingly, in the present work the performance of rich gases in the gas injection process was investigated. Methane has been riched in liquefied petroleum gas (LPG), natural gas liquid (NGL), and Naphtha. Afterwards, the process of gas injection was simulated and the effect of injection fluids on the relative permeability, saturation profile of gas, and fractional flow of gas was studied. Our results showed that as naphtha is a heavier gas than the two other ones, IFT of oil-rich gas with naphtha is lower than other two systems. Based our results, gas oil ratio (GOR) and injection pressure did not affect the final performance of injection gas that has been riched in NGL and LPG. However, when GOR was 1.25 MSCF/STB, rich gas with naphtha moved with a higher speed in the domain and the relative permeability of each fluid and fractional flow of gas were affected. The same result was achieved at higher injection pressure. When injection pressure was 2000 psi, movement of gas with higher speed in the domain, alteration of relative permeability and changes in the fractional flow of gas were obvious. Therefore, based on our result, injection of naphtha with low pressure and high GOR was suggested for considered oil. Nature Publishing Group UK 2023-04-21 /pmc/articles/PMC10121694/ /pubmed/37085713 http://dx.doi.org/10.1038/s41598-023-33833-5 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Mehrjoo, Hossein Safaei, Ali Kazemzadeh, Yousef Riazi, Masoud Cortés, Farid B. Modeling of the movement of rich gas in a porous medium in immiscible, near miscible and miscible conditions |
title | Modeling of the movement of rich gas in a porous medium in immiscible, near miscible and miscible conditions |
title_full | Modeling of the movement of rich gas in a porous medium in immiscible, near miscible and miscible conditions |
title_fullStr | Modeling of the movement of rich gas in a porous medium in immiscible, near miscible and miscible conditions |
title_full_unstemmed | Modeling of the movement of rich gas in a porous medium in immiscible, near miscible and miscible conditions |
title_short | Modeling of the movement of rich gas in a porous medium in immiscible, near miscible and miscible conditions |
title_sort | modeling of the movement of rich gas in a porous medium in immiscible, near miscible and miscible conditions |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10121694/ https://www.ncbi.nlm.nih.gov/pubmed/37085713 http://dx.doi.org/10.1038/s41598-023-33833-5 |
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