Modeling Wettability Variation during Long-Term Water Flooding
Surface property of rock affects oil recovery during water flooding. Oil-wet polar substances adsorbed on the surface of the rock will gradually be desorbed during water flooding, and original reservoir wettability will change towards water-wet, and the change will reduce the residual oil saturation...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2015/592951 |
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| author | Renyi Cao Changwei Sun Y. Zee Ma |
| author_facet | Renyi Cao Changwei Sun Y. Zee Ma |
| author_sort | Renyi Cao |
| collection | DOAJ |
| description | Surface property of rock affects oil recovery during water flooding. Oil-wet polar substances adsorbed on the surface of the rock will gradually be desorbed during water flooding, and original reservoir wettability will change towards water-wet, and the change will reduce the residual oil saturation and improve the oil displacement efficiency. However there is a lack of an accurate description of wettability alternation model during long-term water flooding and it will lead to difficulties in history match and unreliable forecasts using reservoir simulators. This paper summarizes the mechanism of wettability variation and characterizes the adsorption of polar substance during long-term water flooding from injecting water or aquifer and relates the residual oil saturation and relative permeability to the polar substance adsorbed on clay and pore volumes of flooding water. A mathematical model is presented to simulate the long-term water flooding and the model is validated with experimental results. The simulation results of long-term water flooding are also discussed. |
| format | Article |
| id | doaj-art-76110ae3c47b4e1890e88c9e4bf1ac08 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-76110ae3c47b4e1890e88c9e4bf1ac082025-02-03T01:31:09ZengWileyJournal of Chemistry2090-90632090-90712015-01-01201510.1155/2015/592951592951Modeling Wettability Variation during Long-Term Water FloodingRenyi Cao0Changwei Sun1Y. Zee Ma2School of Petroleum Engineering, China University of Petroleum, Beijing 102245, ChinaSchool of Petroleum Engineering, China University of Petroleum, Beijing 102245, ChinaSchlumberger, Denver, CO 80202, USASurface property of rock affects oil recovery during water flooding. Oil-wet polar substances adsorbed on the surface of the rock will gradually be desorbed during water flooding, and original reservoir wettability will change towards water-wet, and the change will reduce the residual oil saturation and improve the oil displacement efficiency. However there is a lack of an accurate description of wettability alternation model during long-term water flooding and it will lead to difficulties in history match and unreliable forecasts using reservoir simulators. This paper summarizes the mechanism of wettability variation and characterizes the adsorption of polar substance during long-term water flooding from injecting water or aquifer and relates the residual oil saturation and relative permeability to the polar substance adsorbed on clay and pore volumes of flooding water. A mathematical model is presented to simulate the long-term water flooding and the model is validated with experimental results. The simulation results of long-term water flooding are also discussed.http://dx.doi.org/10.1155/2015/592951 |
| spellingShingle | Renyi Cao Changwei Sun Y. Zee Ma Modeling Wettability Variation during Long-Term Water Flooding Journal of Chemistry |
| title | Modeling Wettability Variation during Long-Term Water Flooding |
| title_full | Modeling Wettability Variation during Long-Term Water Flooding |
| title_fullStr | Modeling Wettability Variation during Long-Term Water Flooding |
| title_full_unstemmed | Modeling Wettability Variation during Long-Term Water Flooding |
| title_short | Modeling Wettability Variation during Long-Term Water Flooding |
| title_sort | modeling wettability variation during long term water flooding |
| url | http://dx.doi.org/10.1155/2015/592951 |
| work_keys_str_mv | AT renyicao modelingwettabilityvariationduringlongtermwaterflooding AT changweisun modelingwettabilityvariationduringlongtermwaterflooding AT yzeema modelingwettabilityvariationduringlongtermwaterflooding |