Numerical analysis of a caprock integrity during oil production by steam-assisted gravity drainage method
The work is devoted to the investigation of a caprock integrity during oil production by steam-assisted gravity drainage method. An originally proposed thermo-hydro-mechanical model was used for the evaluation of mechanical loading acting on the over-burden. The model includes mass conservation laws...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2019-06-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/2460 |
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| author | Anastasiia Kostina Maxim Zhelnin Oleg Plekhov |
| author_facet | Anastasiia Kostina Maxim Zhelnin Oleg Plekhov |
| author_sort | Anastasiia Kostina |
| collection | DOAJ |
| description | The work is devoted to the investigation of a caprock integrity during oil production by steam-assisted gravity drainage method. An originally proposed thermo-hydro-mechanical model was used for the evaluation of mechanical loading acting on the over-burden. The model includes mass conservation laws, the energy conservation law and the linear momentum balance. Filtration of each phase of the three-phase flow (steam, oil and water) is described by Darcy’s law. Inelastic deformations are described by the phenomenological viscoplastic model based on Drucker-Prager yield criterion. The effect of the porosity evolution induced by the propagation of the steam chamber within the reservoir on the oil production rate and the caprock integrity is studied. It has been shown that the oil production rate is strongly depend on the prevailing physical mechanism of the porosity evolution. Reservoirs characterized by the volumetric strain mechanism of the porosity evolution produce slightly higher values of the mechanical loadings acting on the over-burden. |
| format | Article |
| id | doaj-art-0ebf968efbc84889bd7934c758f3d598 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2019-06-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-0ebf968efbc84889bd7934c758f3d5982025-01-03T01:03:09ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932019-06-011349Numerical analysis of a caprock integrity during oil production by steam-assisted gravity drainage methodAnastasiia Kostina0Maxim ZhelninOleg PlekhovInstitute of Continuous Media Mechanics of the Ural Branch of Russian Academy of SciencesThe work is devoted to the investigation of a caprock integrity during oil production by steam-assisted gravity drainage method. An originally proposed thermo-hydro-mechanical model was used for the evaluation of mechanical loading acting on the over-burden. The model includes mass conservation laws, the energy conservation law and the linear momentum balance. Filtration of each phase of the three-phase flow (steam, oil and water) is described by Darcy’s law. Inelastic deformations are described by the phenomenological viscoplastic model based on Drucker-Prager yield criterion. The effect of the porosity evolution induced by the propagation of the steam chamber within the reservoir on the oil production rate and the caprock integrity is studied. It has been shown that the oil production rate is strongly depend on the prevailing physical mechanism of the porosity evolution. Reservoirs characterized by the volumetric strain mechanism of the porosity evolution produce slightly higher values of the mechanical loadings acting on the over-burden.https://www.fracturae.com/index.php/fis/article/view/2460Coupled problemsSteam-assisted gravity drainageCaprock integrityRock failure |
| spellingShingle | Anastasiia Kostina Maxim Zhelnin Oleg Plekhov Numerical analysis of a caprock integrity during oil production by steam-assisted gravity drainage method Fracture and Structural Integrity Coupled problems Steam-assisted gravity drainage Caprock integrity Rock failure |
| title | Numerical analysis of a caprock integrity during oil production by steam-assisted gravity drainage method |
| title_full | Numerical analysis of a caprock integrity during oil production by steam-assisted gravity drainage method |
| title_fullStr | Numerical analysis of a caprock integrity during oil production by steam-assisted gravity drainage method |
| title_full_unstemmed | Numerical analysis of a caprock integrity during oil production by steam-assisted gravity drainage method |
| title_short | Numerical analysis of a caprock integrity during oil production by steam-assisted gravity drainage method |
| title_sort | numerical analysis of a caprock integrity during oil production by steam assisted gravity drainage method |
| topic | Coupled problems Steam-assisted gravity drainage Caprock integrity Rock failure |
| url | https://www.fracturae.com/index.php/fis/article/view/2460 |
| work_keys_str_mv | AT anastasiiakostina numericalanalysisofacaprockintegrityduringoilproductionbysteamassistedgravitydrainagemethod AT maximzhelnin numericalanalysisofacaprockintegrityduringoilproductionbysteamassistedgravitydrainagemethod AT olegplekhov numericalanalysisofacaprockintegrityduringoilproductionbysteamassistedgravitydrainagemethod |