Experimental evaluation of the water-based enhanced oil recovery methods in ultra-tight reservoirs
Abstract Water-based enhanced oil recovery methods have been developed to improve the oil production rate from ultra-tight reservoirs. By coupling the effect of surfactant as wettability alteration and water alternating gas injection method, we aimed to determine the most efficient enhanced oil reco...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-05-01
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| Series: | Journal of Petroleum Exploration and Production Technology |
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| Online Access: | https://doi.org/10.1007/s13202-023-01655-w |
| _version_ | 1797774352664494080 |
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| author | Xiangchun Zhang Zixuan Luo Junlong Liu Jinghua Wang M. Mehdi Shafieezadeh |
| author_facet | Xiangchun Zhang Zixuan Luo Junlong Liu Jinghua Wang M. Mehdi Shafieezadeh |
| author_sort | Xiangchun Zhang |
| collection | DOAJ |
| description | Abstract Water-based enhanced oil recovery methods have been developed to improve the oil production rate from ultra-tight reservoirs. By coupling the effect of surfactant as wettability alteration and water alternating gas injection method, we aimed to determine the most efficient enhanced oil recovery technique. We performed seven injectivity scenarios to measure the oil recovery factor by introducing the alkylbenzene sulfonic acid (LABSA) as a surfactant agent during the active carbonated water alternating gas (ACWAG) injection. To consider the effect of slug size during water alternating gas injection, we used two different slug sizes (0.3, and 0.6). After the water breakthrough, a little oil volume was produced, and the maximum oil recovery factor at 1.5 Pore Volume (PV) was 26%. This issue corresponded to the water channeling after the breakthrough point. For smaller slug sizes (0.3), the maximum oil recovery factor (78%) was reached in smaller pore volumes. One of the exciting results wass the considerable influence of slug ratio during the water alternating gas (WAG) injection, in which it provided more oil recovery factor (83%) when the gas volume is higher than the water volume. Finally, by introducing the coupling effect of active carbonated water (made by LABSA surfactant) and WAG injection, the maximum oil recovery factor was 85%, corresponding to the better efficiency of active carbonated water in interfacial tension reduction. The results of this comprehensive investigation can be extended in ultra-tight sandstone reservoirs and can be applied as a further guideline in numerical simulations. Graphical abstract |
| first_indexed | 2024-03-12T22:19:46Z |
| format | Article |
| id | doaj.art-614281369d5c488f9b9e9106a6f90b4a |
| institution | Directory Open Access Journal |
| issn | 2190-0558 2190-0566 |
| language | English |
| last_indexed | 2024-03-12T22:19:46Z |
| publishDate | 2023-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of Petroleum Exploration and Production Technology |
| spelling | doaj.art-614281369d5c488f9b9e9106a6f90b4a2023-07-23T11:07:30ZengSpringerOpenJournal of Petroleum Exploration and Production Technology2190-05582190-05662023-05-011391911191810.1007/s13202-023-01655-wExperimental evaluation of the water-based enhanced oil recovery methods in ultra-tight reservoirsXiangchun Zhang0Zixuan Luo1Junlong Liu2Jinghua Wang3M. Mehdi Shafieezadeh4College of Biology and Agriculture, ZunYi Normal UniversityXi’an Changqing Chemical Group Co. Ltd.College of Resources and Environment, ZunYi Normal UniversityResearch Institute of Petroleum Exploration and Development of the Changqing Oil Field, CNPCDepartment of Chemical Engineering, Islamic Azad UniversityAbstract Water-based enhanced oil recovery methods have been developed to improve the oil production rate from ultra-tight reservoirs. By coupling the effect of surfactant as wettability alteration and water alternating gas injection method, we aimed to determine the most efficient enhanced oil recovery technique. We performed seven injectivity scenarios to measure the oil recovery factor by introducing the alkylbenzene sulfonic acid (LABSA) as a surfactant agent during the active carbonated water alternating gas (ACWAG) injection. To consider the effect of slug size during water alternating gas injection, we used two different slug sizes (0.3, and 0.6). After the water breakthrough, a little oil volume was produced, and the maximum oil recovery factor at 1.5 Pore Volume (PV) was 26%. This issue corresponded to the water channeling after the breakthrough point. For smaller slug sizes (0.3), the maximum oil recovery factor (78%) was reached in smaller pore volumes. One of the exciting results wass the considerable influence of slug ratio during the water alternating gas (WAG) injection, in which it provided more oil recovery factor (83%) when the gas volume is higher than the water volume. Finally, by introducing the coupling effect of active carbonated water (made by LABSA surfactant) and WAG injection, the maximum oil recovery factor was 85%, corresponding to the better efficiency of active carbonated water in interfacial tension reduction. The results of this comprehensive investigation can be extended in ultra-tight sandstone reservoirs and can be applied as a further guideline in numerical simulations. Graphical abstracthttps://doi.org/10.1007/s13202-023-01655-wSandstone reservoirsInterfacial tensionEnhanced oil recoveryBreakthroughSlug size |
| spellingShingle | Xiangchun Zhang Zixuan Luo Junlong Liu Jinghua Wang M. Mehdi Shafieezadeh Experimental evaluation of the water-based enhanced oil recovery methods in ultra-tight reservoirs Journal of Petroleum Exploration and Production Technology Sandstone reservoirs Interfacial tension Enhanced oil recovery Breakthrough Slug size |
| title | Experimental evaluation of the water-based enhanced oil recovery methods in ultra-tight reservoirs |
| title_full | Experimental evaluation of the water-based enhanced oil recovery methods in ultra-tight reservoirs |
| title_fullStr | Experimental evaluation of the water-based enhanced oil recovery methods in ultra-tight reservoirs |
| title_full_unstemmed | Experimental evaluation of the water-based enhanced oil recovery methods in ultra-tight reservoirs |
| title_short | Experimental evaluation of the water-based enhanced oil recovery methods in ultra-tight reservoirs |
| title_sort | experimental evaluation of the water based enhanced oil recovery methods in ultra tight reservoirs |
| topic | Sandstone reservoirs Interfacial tension Enhanced oil recovery Breakthrough Slug size |
| url | https://doi.org/10.1007/s13202-023-01655-w |
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