Numerical Study of the Influence of Cavity on Immiscible Liquid Transport in Varied-Wettability Fractures
Field evidence indicates that cavities often occur in fractured rocks, especially in a Karst region. Once the immiscible liquid flows into the cavity, the cavity has the immiscible liquid entrapped and results in a low recovery ratio. In this paper, the immiscible liquid transport in cavity-fracture...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2015-01-01
|
| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2015/961256 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832567632131260416 |
|---|---|
| author | Zhi Dou Zhifang Zhou Yefei Tan Yanzhang Zhou |
| author_facet | Zhi Dou Zhifang Zhou Yefei Tan Yanzhang Zhou |
| author_sort | Zhi Dou |
| collection | DOAJ |
| description | Field evidence indicates that cavities often occur in fractured rocks, especially in a Karst region. Once the immiscible liquid flows into the cavity, the cavity has the immiscible liquid entrapped and results in a low recovery ratio. In this paper, the immiscible liquid transport in cavity-fractures was simulated by Lattice Boltzmann Method (LBM). The interfacial and surface tensions were incorporated by Multicomponent Shan-Chen (MCSC) model. Three various fracture positions were generated to investigate the influence on the irreducible nonwetting phase saturation and displacement time. The influences of fracture aperture and wettability on the immiscible liquid transport were discussed and analyzed. It was found that the cavity resulted in a long displacement time. Increasing the fracture aperture with the corresponding decrease in displacement pressure led to the long displacement time. This consequently decreased the irreducible nonwetting phase saturation. The fracture positions had a significant effect on the displacement time and irreducible saturation. The distribution of the irreducible nonwetting phase was strongly dependent on wettability and fracture position. Furthermore, this study demonstrated that the LBM was very effective in simulating the immiscible two-phase flow in the cavity-fracture. |
| format | Article |
| id | doaj-art-05dc7b98891f4e5980634056e9070489 |
| 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-05dc7b98891f4e5980634056e90704892025-02-03T01:00:53ZengWileyJournal of Chemistry2090-90632090-90712015-01-01201510.1155/2015/961256961256Numerical Study of the Influence of Cavity on Immiscible Liquid Transport in Varied-Wettability FracturesZhi Dou0Zhifang Zhou1Yefei Tan2Yanzhang Zhou3Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Hohai University, Nanjing 210098, ChinaSchool of Earth Science and Engineering, Hohai University, Nanjing 210098, ChinaDepartment of Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, ChinaDepartment of Geotechnical Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, ChinaField evidence indicates that cavities often occur in fractured rocks, especially in a Karst region. Once the immiscible liquid flows into the cavity, the cavity has the immiscible liquid entrapped and results in a low recovery ratio. In this paper, the immiscible liquid transport in cavity-fractures was simulated by Lattice Boltzmann Method (LBM). The interfacial and surface tensions were incorporated by Multicomponent Shan-Chen (MCSC) model. Three various fracture positions were generated to investigate the influence on the irreducible nonwetting phase saturation and displacement time. The influences of fracture aperture and wettability on the immiscible liquid transport were discussed and analyzed. It was found that the cavity resulted in a long displacement time. Increasing the fracture aperture with the corresponding decrease in displacement pressure led to the long displacement time. This consequently decreased the irreducible nonwetting phase saturation. The fracture positions had a significant effect on the displacement time and irreducible saturation. The distribution of the irreducible nonwetting phase was strongly dependent on wettability and fracture position. Furthermore, this study demonstrated that the LBM was very effective in simulating the immiscible two-phase flow in the cavity-fracture.http://dx.doi.org/10.1155/2015/961256 |
| spellingShingle | Zhi Dou Zhifang Zhou Yefei Tan Yanzhang Zhou Numerical Study of the Influence of Cavity on Immiscible Liquid Transport in Varied-Wettability Fractures Journal of Chemistry |
| title | Numerical Study of the Influence of Cavity on Immiscible Liquid Transport in Varied-Wettability Fractures |
| title_full | Numerical Study of the Influence of Cavity on Immiscible Liquid Transport in Varied-Wettability Fractures |
| title_fullStr | Numerical Study of the Influence of Cavity on Immiscible Liquid Transport in Varied-Wettability Fractures |
| title_full_unstemmed | Numerical Study of the Influence of Cavity on Immiscible Liquid Transport in Varied-Wettability Fractures |
| title_short | Numerical Study of the Influence of Cavity on Immiscible Liquid Transport in Varied-Wettability Fractures |
| title_sort | numerical study of the influence of cavity on immiscible liquid transport in varied wettability fractures |
| url | http://dx.doi.org/10.1155/2015/961256 |
| work_keys_str_mv | AT zhidou numericalstudyoftheinfluenceofcavityonimmiscibleliquidtransportinvariedwettabilityfractures AT zhifangzhou numericalstudyoftheinfluenceofcavityonimmiscibleliquidtransportinvariedwettabilityfractures AT yefeitan numericalstudyoftheinfluenceofcavityonimmiscibleliquidtransportinvariedwettabilityfractures AT yanzhangzhou numericalstudyoftheinfluenceofcavityonimmiscibleliquidtransportinvariedwettabilityfractures |