The Dependence of Water and Gas Breakthrough on the Choice of Model Parameters in Naturally Fractured Reservoirs Using Sector and Full Reservoir Models
Assessing fractures in carbonate reservoirs is crucial due to their substantial impact on reservoir permeability. Understanding the characteristics of these fractures is vital for optimizing oil production. Additionally, extremely heterogeneous and anisotropic permeability distribution within the n...
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Sulaimani Polytechnic University
2024-05-01
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| Series: | Kurdistan Journal of Applied Research |
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| Online Access: | https://kjar.spu.edu.iq/index.php/kjar/article/view/899 |
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| author | Barham Sabir Mahmood Mohammed Jamal Awl Farhad Abdulrahman Khoshnaw |
| author_facet | Barham Sabir Mahmood Mohammed Jamal Awl Farhad Abdulrahman Khoshnaw |
| author_sort | Barham Sabir Mahmood |
| collection | DOAJ |
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Assessing fractures in carbonate reservoirs is crucial due to their substantial impact on reservoir permeability. Understanding the characteristics of these fractures is vital for optimizing oil production. Additionally, extremely heterogeneous and anisotropic permeability distribution within the natural fractured reservoir is often caused by the complexity of a fracture network. Therefore, accurate reservoir modelling and simulation must be conducted in order to achieve ultimate recovery. In this paper, a sector model has been developed based on the studied example field, and its results are compared with the full reservoir model to find out the degree of resemblance between their outputs. The study area has four natural fracture compartments, with an average reservoir height of 95m and WOC and GOC depths of 685 m and 590 m, respectively. A dual-porosity and single-permeability modelling system was used to simulate the properties of the reservoir rock. This model was derived from the Petrel layercake model. A sensitivity analysis was also carried out to look into the relationships between field performance and the well. The outcomes of both models demonstrated that matrix permeability and fracture dimension had a significant impact on the early breakthrough of water and gas to comparable, huge extents. Other factors, such as aquifer size and WOC, show a moderate impact on water and gas breakthrough as well as final recovery.
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| format | Article |
| id | doaj-art-f1b4b3a234f349c9ab16704f048c587b |
| institution | Kabale University |
| issn | 2411-7684 2411-7706 |
| language | English |
| publishDate | 2024-05-01 |
| publisher | Sulaimani Polytechnic University |
| record_format | Article |
| series | Kurdistan Journal of Applied Research |
| spelling | doaj-art-f1b4b3a234f349c9ab16704f048c587b2025-02-09T20:59:34ZengSulaimani Polytechnic UniversityKurdistan Journal of Applied Research2411-76842411-77062024-05-019110.24017/science.2024.1.11The Dependence of Water and Gas Breakthrough on the Choice of Model Parameters in Naturally Fractured Reservoirs Using Sector and Full Reservoir ModelsBarham Sabir Mahmood0https://orcid.org/0000-0002-8880-4753Mohammed Jamal Awl1https://orcid.org/0000-0002-7479-534XFarhad Abdulrahman Khoshnaw2https://orcid.org/0000-0002-5657-2337Department of Petroleum Engineering, Faculty of Engineering, Koya University, Koya,IraqDepartment of Petroleum Engineering, Faculty of Engineering, Koya University, Koya, IraqDepartment of Petroleum Engineering, Faculty of Engineering, Koya University, Koya,Iraq Assessing fractures in carbonate reservoirs is crucial due to their substantial impact on reservoir permeability. Understanding the characteristics of these fractures is vital for optimizing oil production. Additionally, extremely heterogeneous and anisotropic permeability distribution within the natural fractured reservoir is often caused by the complexity of a fracture network. Therefore, accurate reservoir modelling and simulation must be conducted in order to achieve ultimate recovery. In this paper, a sector model has been developed based on the studied example field, and its results are compared with the full reservoir model to find out the degree of resemblance between their outputs. The study area has four natural fracture compartments, with an average reservoir height of 95m and WOC and GOC depths of 685 m and 590 m, respectively. A dual-porosity and single-permeability modelling system was used to simulate the properties of the reservoir rock. This model was derived from the Petrel layercake model. A sensitivity analysis was also carried out to look into the relationships between field performance and the well. The outcomes of both models demonstrated that matrix permeability and fracture dimension had a significant impact on the early breakthrough of water and gas to comparable, huge extents. Other factors, such as aquifer size and WOC, show a moderate impact on water and gas breakthrough as well as final recovery. https://kjar.spu.edu.iq/index.php/kjar/article/view/899Fracture reservoirSector modelWater breakthroughGas breakthrough |
| spellingShingle | Barham Sabir Mahmood Mohammed Jamal Awl Farhad Abdulrahman Khoshnaw The Dependence of Water and Gas Breakthrough on the Choice of Model Parameters in Naturally Fractured Reservoirs Using Sector and Full Reservoir Models Kurdistan Journal of Applied Research Fracture reservoir Sector model Water breakthrough Gas breakthrough |
| title | The Dependence of Water and Gas Breakthrough on the Choice of Model Parameters in Naturally Fractured Reservoirs Using Sector and Full Reservoir Models |
| title_full | The Dependence of Water and Gas Breakthrough on the Choice of Model Parameters in Naturally Fractured Reservoirs Using Sector and Full Reservoir Models |
| title_fullStr | The Dependence of Water and Gas Breakthrough on the Choice of Model Parameters in Naturally Fractured Reservoirs Using Sector and Full Reservoir Models |
| title_full_unstemmed | The Dependence of Water and Gas Breakthrough on the Choice of Model Parameters in Naturally Fractured Reservoirs Using Sector and Full Reservoir Models |
| title_short | The Dependence of Water and Gas Breakthrough on the Choice of Model Parameters in Naturally Fractured Reservoirs Using Sector and Full Reservoir Models |
| title_sort | dependence of water and gas breakthrough on the choice of model parameters in naturally fractured reservoirs using sector and full reservoir models |
| topic | Fracture reservoir Sector model Water breakthrough Gas breakthrough |
| url | https://kjar.spu.edu.iq/index.php/kjar/article/view/899 |
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