Modeling of asphaltene precipitation - part I: comparative study for asphaltene precipitation envelope prediction methods
The solubility of asphaltenes in crude oils is predominantly influenced by variations in temperature, pressure, and oil composition. These alterations can precipitate asphaltene deposition, resulting in diminished permeability, obstruction of wells and auxiliary surface facilities, and ultimatel...
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University of Baghdad/College of Engineering
2024-12-01
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| Series: | Iraqi Journal of Chemical and Petroleum Engineering |
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| Online Access: | https://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/1286 |
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| author | Ali A. Ali Ghassan Hameed Abdul-Majeed Abdalellah O. Mohmmed |
| author_facet | Ali A. Ali Ghassan Hameed Abdul-Majeed Abdalellah O. Mohmmed |
| author_sort | Ali A. Ali |
| collection | DOAJ |
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The solubility of asphaltenes in crude oils is predominantly influenced by variations in temperature, pressure, and oil composition. These alterations can precipitate asphaltene deposition, resulting in diminished permeability, obstruction of wells and auxiliary surface facilities, and ultimately, a reduction or cessation of production. Therefore, it is imperative for upstream and downstream processing engineers to comprehend and predict asphaltene phase behavior to implement effective preventative and remedial strategies and minimize costs. Asphaltene precipitation can be predicted through the application of solubility and colloidal theories. In this study, cubic equations of state and cubic-plus-association equations of state are utilized as solubility theory-based methodologies. The advanced versions of the Peng-Robinson (APR78) and Soave-Redlich-Kwong (ASRK) cubic equations of state are compared with cubic-plus-association (CPA) equations of state using Multiflash software to predict fluid and asphaltene phase behavior. The simulation results demonstrate a strong correlation between the ASRK model and the CPA model, with a minor deviation from the results of the APR78 model. This observation suggests that these models can effectively predict asphaltene behavior and yield acceptable results when compared to experimental data for fluid and asphaltene. Considering the likelihood of asphaltene deposition within wells, hence, it is recommended to develop a model to determine the locations and quantities of deposition.
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| format | Article |
| id | doaj-art-009a7f3ebfbf4af2a2a8f71061df2b5d |
| institution | Kabale University |
| issn | 1997-4884 2618-0707 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | University of Baghdad/College of Engineering |
| record_format | Article |
| series | Iraqi Journal of Chemical and Petroleum Engineering |
| spelling | doaj-art-009a7f3ebfbf4af2a2a8f71061df2b5d2024-12-30T10:49:40ZengUniversity of Baghdad/College of EngineeringIraqi Journal of Chemical and Petroleum Engineering1997-48842618-07072024-12-0125410.31699/IJCPE.2024.4.1Modeling of asphaltene precipitation - part I: comparative study for asphaltene precipitation envelope prediction methodsAli A. Ali0Ghassan Hameed Abdul-Majeed1https://orcid.org/0000-0002-6398-6968Abdalellah O. Mohmmed2https://orcid.org/0000-0003-2270-1273Department of Petroleum Engineering, College of Engineering, University of Baghdad, Baghdad, Iraq / Department of Oil and Gas Engineering, University of Technology, Baghdad, IraqCollege of Engineering, University of Baghdad, Baghdad, IraqDepartment of Mechanical and Sustainable Energy, De Montfort University, Dubai, UAE The solubility of asphaltenes in crude oils is predominantly influenced by variations in temperature, pressure, and oil composition. These alterations can precipitate asphaltene deposition, resulting in diminished permeability, obstruction of wells and auxiliary surface facilities, and ultimately, a reduction or cessation of production. Therefore, it is imperative for upstream and downstream processing engineers to comprehend and predict asphaltene phase behavior to implement effective preventative and remedial strategies and minimize costs. Asphaltene precipitation can be predicted through the application of solubility and colloidal theories. In this study, cubic equations of state and cubic-plus-association equations of state are utilized as solubility theory-based methodologies. The advanced versions of the Peng-Robinson (APR78) and Soave-Redlich-Kwong (ASRK) cubic equations of state are compared with cubic-plus-association (CPA) equations of state using Multiflash software to predict fluid and asphaltene phase behavior. The simulation results demonstrate a strong correlation between the ASRK model and the CPA model, with a minor deviation from the results of the APR78 model. This observation suggests that these models can effectively predict asphaltene behavior and yield acceptable results when compared to experimental data for fluid and asphaltene. Considering the likelihood of asphaltene deposition within wells, hence, it is recommended to develop a model to determine the locations and quantities of deposition. https://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/1286Flow assurance; Asphaltene precipitation; Asphaltene onset pressure; Equation of state. |
| spellingShingle | Ali A. Ali Ghassan Hameed Abdul-Majeed Abdalellah O. Mohmmed Modeling of asphaltene precipitation - part I: comparative study for asphaltene precipitation envelope prediction methods Iraqi Journal of Chemical and Petroleum Engineering Flow assurance; Asphaltene precipitation; Asphaltene onset pressure; Equation of state. |
| title | Modeling of asphaltene precipitation - part I: comparative study for asphaltene precipitation envelope prediction methods |
| title_full | Modeling of asphaltene precipitation - part I: comparative study for asphaltene precipitation envelope prediction methods |
| title_fullStr | Modeling of asphaltene precipitation - part I: comparative study for asphaltene precipitation envelope prediction methods |
| title_full_unstemmed | Modeling of asphaltene precipitation - part I: comparative study for asphaltene precipitation envelope prediction methods |
| title_short | Modeling of asphaltene precipitation - part I: comparative study for asphaltene precipitation envelope prediction methods |
| title_sort | modeling of asphaltene precipitation part i comparative study for asphaltene precipitation envelope prediction methods |
| topic | Flow assurance; Asphaltene precipitation; Asphaltene onset pressure; Equation of state. |
| url | https://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/1286 |
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