Hybrid low salinity water and surfactant process for enhancing heavy oil recovery
Combining low salinity water (LSW) with surfactants has an enormous potential for enhancing oil recovery processes. However, there is no consensus about the mechanisms involved, in addition to the fact that several studies have been conducted in model systems, while experiments with rocks and reserv...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2023-12-01
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| Series: | Petroleum Exploration and Development |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1876380424604805 |
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| author | Teresa ROLDÁN-CARRILLO Gladys CASTORENA-CORTES Rodrigo Orlando SALAZAR CASTILLO Luis HERNÁNDEZ-ESCOBEDO Patricia OLGUÍN-LORA Herón GACHUZ-MURO |
| author_facet | Teresa ROLDÁN-CARRILLO Gladys CASTORENA-CORTES Rodrigo Orlando SALAZAR CASTILLO Luis HERNÁNDEZ-ESCOBEDO Patricia OLGUÍN-LORA Herón GACHUZ-MURO |
| author_sort | Teresa ROLDÁN-CARRILLO |
| collection | DOAJ |
| description | Combining low salinity water (LSW) with surfactants has an enormous potential for enhancing oil recovery processes. However, there is no consensus about the mechanisms involved, in addition to the fact that several studies have been conducted in model systems, while experiments with rocks and reservoir fluids are scarce. This study presents a core-flooding experiment of LSW injection, with and without surfactant, using the core and heavy oil samples obtained from a sandstone reservoir in southeastern Mexico. The effluents and the crude oil obtained at each stage were analyzed. The study was complemented by tomographic analysis. The results revealed that LSW injection and hybrid process with surfactants obtained an increase of 11.4 percentage points in recovery factor. Various phenomena were caused by LSW flooding, such as changes in wettability and pH, ion exchange, mineral dissolution, detachment of fines and modification of the hydrocarbon profile. In the surfactant flooding, the reduction of interfacial tension and alteration of wettability were the main mechanisms involved. The findings of this work also showed that the conditions believed to be necessary for enhanced oil recovery with LSW, such as the presence of kaolinite or high acid number oil, are not relevant. |
| first_indexed | 2024-03-08T21:50:42Z |
| format | Article |
| id | doaj.art-1b274f95f02f4c92b0ab624cef6905bd |
| institution | Directory Open Access Journal |
| issn | 1876-3804 |
| language | English |
| last_indexed | 2024-03-08T21:50:42Z |
| publishDate | 2023-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Petroleum Exploration and Development |
| spelling | doaj.art-1b274f95f02f4c92b0ab624cef6905bd2023-12-20T07:34:03ZengKeAi Communications Co., Ltd.Petroleum Exploration and Development1876-38042023-12-0150614661477Hybrid low salinity water and surfactant process for enhancing heavy oil recoveryTeresa ROLDÁN-CARRILLO0Gladys CASTORENA-CORTES1Rodrigo Orlando SALAZAR CASTILLO2Luis HERNÁNDEZ-ESCOBEDO3Patricia OLGUÍN-LORA4Herón GACHUZ-MURO5Instituto Mexicano del Petróleo, Mexico City 07730, Mexico;Instituto Mexicano del Petróleo, Mexico City 07730, Mexico;; Corresponding author.Instituto Mexicano del Petróleo, Mexico City 07730, Mexico;Instituto Mexicano del Petróleo, Mexico City 07730, Mexico;Instituto Mexicano del Petróleo, Mexico City 07730, Mexico;Petroleos Mexicanos, PEMEX, Villahermosa, MexicoCombining low salinity water (LSW) with surfactants has an enormous potential for enhancing oil recovery processes. However, there is no consensus about the mechanisms involved, in addition to the fact that several studies have been conducted in model systems, while experiments with rocks and reservoir fluids are scarce. This study presents a core-flooding experiment of LSW injection, with and without surfactant, using the core and heavy oil samples obtained from a sandstone reservoir in southeastern Mexico. The effluents and the crude oil obtained at each stage were analyzed. The study was complemented by tomographic analysis. The results revealed that LSW injection and hybrid process with surfactants obtained an increase of 11.4 percentage points in recovery factor. Various phenomena were caused by LSW flooding, such as changes in wettability and pH, ion exchange, mineral dissolution, detachment of fines and modification of the hydrocarbon profile. In the surfactant flooding, the reduction of interfacial tension and alteration of wettability were the main mechanisms involved. The findings of this work also showed that the conditions believed to be necessary for enhanced oil recovery with LSW, such as the presence of kaolinite or high acid number oil, are not relevant.http://www.sciencedirect.com/science/article/pii/S1876380424604805low salinity water floodingsurfactant floodinghybrid processesenhanced oil recoverytomography |
| spellingShingle | Teresa ROLDÁN-CARRILLO Gladys CASTORENA-CORTES Rodrigo Orlando SALAZAR CASTILLO Luis HERNÁNDEZ-ESCOBEDO Patricia OLGUÍN-LORA Herón GACHUZ-MURO Hybrid low salinity water and surfactant process for enhancing heavy oil recovery Petroleum Exploration and Development low salinity water flooding surfactant flooding hybrid processes enhanced oil recovery tomography |
| title | Hybrid low salinity water and surfactant process for enhancing heavy oil recovery |
| title_full | Hybrid low salinity water and surfactant process for enhancing heavy oil recovery |
| title_fullStr | Hybrid low salinity water and surfactant process for enhancing heavy oil recovery |
| title_full_unstemmed | Hybrid low salinity water and surfactant process for enhancing heavy oil recovery |
| title_short | Hybrid low salinity water and surfactant process for enhancing heavy oil recovery |
| title_sort | hybrid low salinity water and surfactant process for enhancing heavy oil recovery |
| topic | low salinity water flooding surfactant flooding hybrid processes enhanced oil recovery tomography |
| url | http://www.sciencedirect.com/science/article/pii/S1876380424604805 |
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