Experimental investigation of gas–oil–water phase flow in vertical pipes: influence of gas injection on the total pressure gradient
Abstract Experimental work has been conducted to study the influence of gas injection on the phase inversion between oil and water flowing in a vertical pipe. A vertical transparent pipe test section line of 40 mm ID and 50 cm length was used. The test fluids used were synthetic oil and filtered tap...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-06-01
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| Series: | Journal of Petroleum Exploration and Production Technology |
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| Online Access: | http://link.springer.com/article/10.1007/s13202-019-0703-0 |
| _version_ | 1811181292081905664 |
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| author | Tarek Ganat Meftah Hrairi Shiferaw Regassa |
| author_facet | Tarek Ganat Meftah Hrairi Shiferaw Regassa |
| author_sort | Tarek Ganat |
| collection | DOAJ |
| description | Abstract Experimental work has been conducted to study the influence of gas injection on the phase inversion between oil and water flowing in a vertical pipe. A vertical transparent pipe test section line of 40 mm ID and 50 cm length was used. The test fluids used were synthetic oil and filtered tap water. Measurements were taken for mixture velocity, superficial water velocity, superficial gas velocity, and input superficial oil velocity ranging from 0.4 to 3 m/s, 0.18 to 2 m/s, 0 to 0.9 m/s, and 0 to 1.1 m/s. Most of the experiments were conducted more than two times, and the reproducibility of the experiments was quite good. Special attention was given to the effect of oil and water concentration where phase inversion took place with and without gas injection. The results showed that the phase inversion point was close to water fraction of ~ 30%, for both water friction direction changes (from water to oil or from oil to water) and that the effective viscosity increases once the mixture velocity increases. On the other hand, the results with gas injection showed that gas injection had no effect on the oil or water concentration where phase inversion occurred. Furthermore, the study investigated the effect of gas–oil–water superficial velocity on the total pressure gradient in the vertical pipe. It was found that the total pressure gradient was fast and increased at high superficial gas velocity but was slow at low superficial gas velocity. When the superficial oil velocity increased, the total pressure gradient approached the pressure gradient of an oil–water two-phase flow. The obtained results were compared with few correlations found in the literature, and the comparison showed that the uncertainty of the flow pattern transition peak in this study is very low. |
| first_indexed | 2024-04-11T09:16:01Z |
| format | Article |
| id | doaj.art-688621b75bed44dfaa92ca0f1b14376a |
| institution | Directory Open Access Journal |
| issn | 2190-0558 2190-0566 |
| language | English |
| last_indexed | 2024-04-11T09:16:01Z |
| publishDate | 2019-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of Petroleum Exploration and Production Technology |
| spelling | doaj.art-688621b75bed44dfaa92ca0f1b14376a2022-12-22T04:32:20ZengSpringerOpenJournal of Petroleum Exploration and Production Technology2190-05582190-05662019-06-01943071307810.1007/s13202-019-0703-0Experimental investigation of gas–oil–water phase flow in vertical pipes: influence of gas injection on the total pressure gradientTarek Ganat0Meftah Hrairi1Shiferaw Regassa2Department of Petroleum Engineering, Universiti Teknologi PETRONASDepartment of Mechanical Engineering, International Islamic University MalaysiaDepartment of Petroleum Engineering, Universiti Teknologi PETRONASAbstract Experimental work has been conducted to study the influence of gas injection on the phase inversion between oil and water flowing in a vertical pipe. A vertical transparent pipe test section line of 40 mm ID and 50 cm length was used. The test fluids used were synthetic oil and filtered tap water. Measurements were taken for mixture velocity, superficial water velocity, superficial gas velocity, and input superficial oil velocity ranging from 0.4 to 3 m/s, 0.18 to 2 m/s, 0 to 0.9 m/s, and 0 to 1.1 m/s. Most of the experiments were conducted more than two times, and the reproducibility of the experiments was quite good. Special attention was given to the effect of oil and water concentration where phase inversion took place with and without gas injection. The results showed that the phase inversion point was close to water fraction of ~ 30%, for both water friction direction changes (from water to oil or from oil to water) and that the effective viscosity increases once the mixture velocity increases. On the other hand, the results with gas injection showed that gas injection had no effect on the oil or water concentration where phase inversion occurred. Furthermore, the study investigated the effect of gas–oil–water superficial velocity on the total pressure gradient in the vertical pipe. It was found that the total pressure gradient was fast and increased at high superficial gas velocity but was slow at low superficial gas velocity. When the superficial oil velocity increased, the total pressure gradient approached the pressure gradient of an oil–water two-phase flow. The obtained results were compared with few correlations found in the literature, and the comparison showed that the uncertainty of the flow pattern transition peak in this study is very low.http://link.springer.com/article/10.1007/s13202-019-0703-0Pressure gradientGas injectionFlow patternMultiphase flowSuperficial velocityFriction water |
| spellingShingle | Tarek Ganat Meftah Hrairi Shiferaw Regassa Experimental investigation of gas–oil–water phase flow in vertical pipes: influence of gas injection on the total pressure gradient Journal of Petroleum Exploration and Production Technology Pressure gradient Gas injection Flow pattern Multiphase flow Superficial velocity Friction water |
| title | Experimental investigation of gas–oil–water phase flow in vertical pipes: influence of gas injection on the total pressure gradient |
| title_full | Experimental investigation of gas–oil–water phase flow in vertical pipes: influence of gas injection on the total pressure gradient |
| title_fullStr | Experimental investigation of gas–oil–water phase flow in vertical pipes: influence of gas injection on the total pressure gradient |
| title_full_unstemmed | Experimental investigation of gas–oil–water phase flow in vertical pipes: influence of gas injection on the total pressure gradient |
| title_short | Experimental investigation of gas–oil–water phase flow in vertical pipes: influence of gas injection on the total pressure gradient |
| title_sort | experimental investigation of gas oil water phase flow in vertical pipes influence of gas injection on the total pressure gradient |
| topic | Pressure gradient Gas injection Flow pattern Multiphase flow Superficial velocity Friction water |
| url | http://link.springer.com/article/10.1007/s13202-019-0703-0 |
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