Numerical Well Test Analysis for Polymer Flooding considering the Non-Newtonian Behavior
Well test analysis for polymer flooding is different from traditional well test analysis because of the non-Newtonian properties of underground flow and other mechanisms involved in polymer flooding. Few of the present works have proposed a numerical approach of pressure transient analysis which ful...
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| Main Authors: | , , , , |
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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/10.1155/2015/107625 |
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| author | Jia Zhichun Li Daolun Yang Jinghai Xue Zhenggang Lu Detang |
| author_facet | Jia Zhichun Li Daolun Yang Jinghai Xue Zhenggang Lu Detang |
| author_sort | Jia Zhichun |
| collection | DOAJ |
| description | Well test analysis for polymer flooding is different from traditional well test analysis because of the non-Newtonian properties of underground flow and other mechanisms involved in polymer flooding. Few of the present works have proposed a numerical approach of pressure transient analysis which fully considers the non-Newtonian effect of real polymer solution and interprets the polymer rheology from details of pressure transient response. In this study, a two-phase four-component fully implicit numerical model incorporating shear thinning effect for polymer flooding based on PEBI (Perpendicular Bisection) grid is developed to study transient pressure responses in polymer flooding reservoirs. Parametric studies are conducted to quantify the effect of shear thinning and polymer concentration on the pressure transient response. Results show that shear thinning effect leads to obvious and characteristic nonsmoothness on pressure derivative curves, and the oscillation amplitude of the shear-thinning-induced nonsmoothness is related to the viscosity change decided by shear thinning effect and polymer concentration. Practical applications are carried out with shut-in data obtained in Daqing oil field, which validates our findings. The proposed method and the findings in this paper show significant importance for well test analysis for polymer flooding and the determination of the polymer in situ rheology. |
| format | Article |
| id | doaj-art-13ca5c2f59b449c8a83bde2bbb0ca330 |
| 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-13ca5c2f59b449c8a83bde2bbb0ca3302025-08-20T03:54:33ZengWileyJournal of Chemistry2090-90632090-90712015-01-01201510.1155/2015/107625107625Numerical Well Test Analysis for Polymer Flooding considering the Non-Newtonian BehaviorJia Zhichun0Li Daolun1Yang Jinghai2Xue Zhenggang3Lu Detang4University of Science and Technology of China, Hefei, Anhui 230026, ChinaUniversity of Science and Technology of China, Hefei, Anhui 230026, ChinaDaqing Oilfield Company Ltd., Daqing, Heilongjiang 163453, ChinaUniversity of Science and Technology of China, Hefei, Anhui 230026, ChinaUniversity of Science and Technology of China, Hefei, Anhui 230026, ChinaWell test analysis for polymer flooding is different from traditional well test analysis because of the non-Newtonian properties of underground flow and other mechanisms involved in polymer flooding. Few of the present works have proposed a numerical approach of pressure transient analysis which fully considers the non-Newtonian effect of real polymer solution and interprets the polymer rheology from details of pressure transient response. In this study, a two-phase four-component fully implicit numerical model incorporating shear thinning effect for polymer flooding based on PEBI (Perpendicular Bisection) grid is developed to study transient pressure responses in polymer flooding reservoirs. Parametric studies are conducted to quantify the effect of shear thinning and polymer concentration on the pressure transient response. Results show that shear thinning effect leads to obvious and characteristic nonsmoothness on pressure derivative curves, and the oscillation amplitude of the shear-thinning-induced nonsmoothness is related to the viscosity change decided by shear thinning effect and polymer concentration. Practical applications are carried out with shut-in data obtained in Daqing oil field, which validates our findings. The proposed method and the findings in this paper show significant importance for well test analysis for polymer flooding and the determination of the polymer in situ rheology.http://dx.doi.org/10.1155/2015/107625 |
| spellingShingle | Jia Zhichun Li Daolun Yang Jinghai Xue Zhenggang Lu Detang Numerical Well Test Analysis for Polymer Flooding considering the Non-Newtonian Behavior Journal of Chemistry |
| title | Numerical Well Test Analysis for Polymer Flooding considering the Non-Newtonian Behavior |
| title_full | Numerical Well Test Analysis for Polymer Flooding considering the Non-Newtonian Behavior |
| title_fullStr | Numerical Well Test Analysis for Polymer Flooding considering the Non-Newtonian Behavior |
| title_full_unstemmed | Numerical Well Test Analysis for Polymer Flooding considering the Non-Newtonian Behavior |
| title_short | Numerical Well Test Analysis for Polymer Flooding considering the Non-Newtonian Behavior |
| title_sort | numerical well test analysis for polymer flooding considering the non newtonian behavior |
| url | http://dx.doi.org/10.1155/2015/107625 |
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