Pore-Scale Simulation of Gas and Water Two-Phase Flow in Rough-Walled Fractures Using the Volume of Fluid Method
The gas and water flow behavior in rough-walled hydrophilic fractures at the pore scale is crucial for understanding the gas production characteristics of naturally fractured formations. This paper presents a systematic analysis of the gas and water flow characteristics in both the single-fracture a...
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| Format: | Article |
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MDPI AG
2022-12-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/24/9382 |
| _version_ | 1797459769245564928 |
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| author | Qingzhong Zhu Yanhui Yang Xueying Zhang Sanshuai Wang Jinzhao Yang Jiyuan Zhang |
| author_facet | Qingzhong Zhu Yanhui Yang Xueying Zhang Sanshuai Wang Jinzhao Yang Jiyuan Zhang |
| author_sort | Qingzhong Zhu |
| collection | DOAJ |
| description | The gas and water flow behavior in rough-walled hydrophilic fractures at the pore scale is crucial for understanding the gas production characteristics of naturally fractured formations. This paper presents a systematic analysis of the gas and water flow characteristics in both the single-fracture and Y-shaped junction fracture models using the volume of fluid (VOF) method. Numerical simulations showed that the gas/water rate ratio is the most significant factor influencing gas bubble/slug geometry, phase distribution, and saturation. The effect of fracture roughness and tortuosity is less significant than the gas/water ratio, whereas the total fluid rate has a negligible effect. For Y-shaped junction models, the phase distribution and referential pathways are predominantly controlled only by the channel aperture ratio, whereas the effect of the intersecting angle and fluid flow rate can be neglected. |
| first_indexed | 2024-03-09T16:56:06Z |
| format | Article |
| id | doaj.art-cbbbcb2ebc8642f78b8d7e2bdd214333 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T16:56:06Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-cbbbcb2ebc8642f78b8d7e2bdd2143332023-11-24T14:35:54ZengMDPI AGEnergies1996-10732022-12-011524938210.3390/en15249382Pore-Scale Simulation of Gas and Water Two-Phase Flow in Rough-Walled Fractures Using the Volume of Fluid MethodQingzhong Zhu0Yanhui Yang1Xueying Zhang2Sanshuai Wang3Jinzhao Yang4Jiyuan Zhang5PetroChina Huabei Oilfield Company, Renqiu 062552, ChinaPetroChina Huabei Oilfield Company, Renqiu 062552, ChinaPetroChina Huabei Oilfield Company, Renqiu 062552, ChinaPetroChina Huabei Oilfield Company, Renqiu 062552, ChinaKey Laboratory of Unconventional Oil & Gas Development, China University of Petroleum (East China), Qingdao 266580, ChinaKey Laboratory of Unconventional Oil & Gas Development, China University of Petroleum (East China), Qingdao 266580, ChinaThe gas and water flow behavior in rough-walled hydrophilic fractures at the pore scale is crucial for understanding the gas production characteristics of naturally fractured formations. This paper presents a systematic analysis of the gas and water flow characteristics in both the single-fracture and Y-shaped junction fracture models using the volume of fluid (VOF) method. Numerical simulations showed that the gas/water rate ratio is the most significant factor influencing gas bubble/slug geometry, phase distribution, and saturation. The effect of fracture roughness and tortuosity is less significant than the gas/water ratio, whereas the total fluid rate has a negligible effect. For Y-shaped junction models, the phase distribution and referential pathways are predominantly controlled only by the channel aperture ratio, whereas the effect of the intersecting angle and fluid flow rate can be neglected.https://www.mdpi.com/1996-1073/15/24/9382computational fluid dynamicsrough-walled fracturegas/water two-phase flowvolume of fluidfracture geometry |
| spellingShingle | Qingzhong Zhu Yanhui Yang Xueying Zhang Sanshuai Wang Jinzhao Yang Jiyuan Zhang Pore-Scale Simulation of Gas and Water Two-Phase Flow in Rough-Walled Fractures Using the Volume of Fluid Method Energies computational fluid dynamics rough-walled fracture gas/water two-phase flow volume of fluid fracture geometry |
| title | Pore-Scale Simulation of Gas and Water Two-Phase Flow in Rough-Walled Fractures Using the Volume of Fluid Method |
| title_full | Pore-Scale Simulation of Gas and Water Two-Phase Flow in Rough-Walled Fractures Using the Volume of Fluid Method |
| title_fullStr | Pore-Scale Simulation of Gas and Water Two-Phase Flow in Rough-Walled Fractures Using the Volume of Fluid Method |
| title_full_unstemmed | Pore-Scale Simulation of Gas and Water Two-Phase Flow in Rough-Walled Fractures Using the Volume of Fluid Method |
| title_short | Pore-Scale Simulation of Gas and Water Two-Phase Flow in Rough-Walled Fractures Using the Volume of Fluid Method |
| title_sort | pore scale simulation of gas and water two phase flow in rough walled fractures using the volume of fluid method |
| topic | computational fluid dynamics rough-walled fracture gas/water two-phase flow volume of fluid fracture geometry |
| url | https://www.mdpi.com/1996-1073/15/24/9382 |
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