Influence of Oil Viscosity on Alkaline Flooding for Enhanced Heavy Oil Recovery
Oil viscosity was studied as an important factor for alkaline flooding based on the mechanism of “water drops” flow. Alkaline flooding for two oil samples with different viscosities but similar acid numbers was compared. Besides, series flooding tests for the same oil sample were conducted at differ...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2013/938237 |
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| author | Yong Du Guicai Zhang Jijiang Ge Guanghui Li Anzhou Feng |
| author_facet | Yong Du Guicai Zhang Jijiang Ge Guanghui Li Anzhou Feng |
| author_sort | Yong Du |
| collection | DOAJ |
| description | Oil viscosity was studied as an important factor for alkaline flooding based on the mechanism of “water drops” flow. Alkaline flooding for two oil samples with different viscosities but similar acid numbers was compared. Besides, series flooding tests for the same oil sample were conducted at different temperatures and permeabilities. The results of flooding tests indicated that a high tertiary oil recovery could be achieved only in the low-permeability (approximately 500 mD) sandpacks for the low-viscosity heavy oil (Zhuangxi, 390 mPa·s); however, the high-viscosity heavy oil (Chenzhuang, 3450 mPa·s) performed well in both the low- and medium-permeability (approximately 1000 mD) sandpacks. In addition, the results of flooding tests for the same oil at different temperatures also indicated that the oil viscosity put a similar effect on alkaline flooding. Therefore, oil with a high-viscosity is favorable for alkaline flooding. The microscopic flooding test indicated that the water drops produced during alkaline flooding for oils with different viscosities differed significantly in their sizes, which might influence the flow behaviors and therefore the sweep efficiencies of alkaline fluids. This study provides an evidence for the feasibility of the development of high-viscosity heavy oil using alkaline flooding. |
| format | Article |
| id | doaj-art-4170f897eba841c49db44d155ec70c61 |
| institution | OA Journals |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-4170f897eba841c49db44d155ec70c612025-08-20T02:08:26ZengWileyJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/938237938237Influence of Oil Viscosity on Alkaline Flooding for Enhanced Heavy Oil RecoveryYong Du0Guicai Zhang1Jijiang Ge2Guanghui Li3Anzhou Feng4College of Petroleum Engineering, China University of Petroleum, Qingdao 266555, ChinaCollege of Petroleum Engineering, China University of Petroleum, Qingdao 266555, ChinaCollege of Petroleum Engineering, China University of Petroleum, Qingdao 266555, ChinaCollege of Petroleum Engineering, China University of Petroleum, Qingdao 266555, ChinaXinchun Production Plant, Shengli Oilfield, Sinopec, ChinaOil viscosity was studied as an important factor for alkaline flooding based on the mechanism of “water drops” flow. Alkaline flooding for two oil samples with different viscosities but similar acid numbers was compared. Besides, series flooding tests for the same oil sample were conducted at different temperatures and permeabilities. The results of flooding tests indicated that a high tertiary oil recovery could be achieved only in the low-permeability (approximately 500 mD) sandpacks for the low-viscosity heavy oil (Zhuangxi, 390 mPa·s); however, the high-viscosity heavy oil (Chenzhuang, 3450 mPa·s) performed well in both the low- and medium-permeability (approximately 1000 mD) sandpacks. In addition, the results of flooding tests for the same oil at different temperatures also indicated that the oil viscosity put a similar effect on alkaline flooding. Therefore, oil with a high-viscosity is favorable for alkaline flooding. The microscopic flooding test indicated that the water drops produced during alkaline flooding for oils with different viscosities differed significantly in their sizes, which might influence the flow behaviors and therefore the sweep efficiencies of alkaline fluids. This study provides an evidence for the feasibility of the development of high-viscosity heavy oil using alkaline flooding.http://dx.doi.org/10.1155/2013/938237 |
| spellingShingle | Yong Du Guicai Zhang Jijiang Ge Guanghui Li Anzhou Feng Influence of Oil Viscosity on Alkaline Flooding for Enhanced Heavy Oil Recovery Journal of Chemistry |
| title | Influence of Oil Viscosity on Alkaline Flooding for Enhanced Heavy Oil Recovery |
| title_full | Influence of Oil Viscosity on Alkaline Flooding for Enhanced Heavy Oil Recovery |
| title_fullStr | Influence of Oil Viscosity on Alkaline Flooding for Enhanced Heavy Oil Recovery |
| title_full_unstemmed | Influence of Oil Viscosity on Alkaline Flooding for Enhanced Heavy Oil Recovery |
| title_short | Influence of Oil Viscosity on Alkaline Flooding for Enhanced Heavy Oil Recovery |
| title_sort | influence of oil viscosity on alkaline flooding for enhanced heavy oil recovery |
| url | http://dx.doi.org/10.1155/2013/938237 |
| work_keys_str_mv | AT yongdu influenceofoilviscosityonalkalinefloodingforenhancedheavyoilrecovery AT guicaizhang influenceofoilviscosityonalkalinefloodingforenhancedheavyoilrecovery AT jijiangge influenceofoilviscosityonalkalinefloodingforenhancedheavyoilrecovery AT guanghuili influenceofoilviscosityonalkalinefloodingforenhancedheavyoilrecovery AT anzhoufeng influenceofoilviscosityonalkalinefloodingforenhancedheavyoilrecovery |