Effect of pulse pressure on borehole stability during shear swirling flow vibration cementing.
The shear swirling flow vibration cementing (SSFVC) technique rotates the downhole eccentric cascade by circulating cementing fluid. It makes the casing eccentrically revolve at high speed around the borehole axis. It produces strong agitation action to the annulus fluid, makes it in the state of sh...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2017-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC5690648?pdf=render |
| _version_ | 1811205959956037632 |
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| author | Zhihua Cui Chi Ai Lei Lv Fangxian Yin |
| author_facet | Zhihua Cui Chi Ai Lei Lv Fangxian Yin |
| author_sort | Zhihua Cui |
| collection | DOAJ |
| description | The shear swirling flow vibration cementing (SSFVC) technique rotates the downhole eccentric cascade by circulating cementing fluid. It makes the casing eccentrically revolve at high speed around the borehole axis. It produces strong agitation action to the annulus fluid, makes it in the state of shear turbulent flow, and results in the formation of pulse pressure which affects the surrounding rock stress. This study was focused on 1) the calculation of the pulse pressure in an annular turbulent flow field based on the finite volume method, and 2) the analysis of the effect of pulse pressure on borehole stability. On the upside, the pulse pressure is conducive to enhancing the liquidity of the annulus fluid, reducing the fluid gel strength, and preventing the formation of fluid from channeling. But greater pulse pressure may cause lost circulation and even formation fracturing. Therefore, in order to ensure smooth cementing during SSFVC, the effect of pulse pressure should be considered when cementing design. |
| first_indexed | 2024-04-12T03:40:00Z |
| format | Article |
| id | doaj.art-81e1409f662e47e9b9a3889ec4699cd1 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-12T03:40:00Z |
| publishDate | 2017-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-81e1409f662e47e9b9a3889ec4699cd12022-12-22T03:49:19ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-011211e018727910.1371/journal.pone.0187279Effect of pulse pressure on borehole stability during shear swirling flow vibration cementing.Zhihua CuiChi AiLei LvFangxian YinThe shear swirling flow vibration cementing (SSFVC) technique rotates the downhole eccentric cascade by circulating cementing fluid. It makes the casing eccentrically revolve at high speed around the borehole axis. It produces strong agitation action to the annulus fluid, makes it in the state of shear turbulent flow, and results in the formation of pulse pressure which affects the surrounding rock stress. This study was focused on 1) the calculation of the pulse pressure in an annular turbulent flow field based on the finite volume method, and 2) the analysis of the effect of pulse pressure on borehole stability. On the upside, the pulse pressure is conducive to enhancing the liquidity of the annulus fluid, reducing the fluid gel strength, and preventing the formation of fluid from channeling. But greater pulse pressure may cause lost circulation and even formation fracturing. Therefore, in order to ensure smooth cementing during SSFVC, the effect of pulse pressure should be considered when cementing design.http://europepmc.org/articles/PMC5690648?pdf=render |
| spellingShingle | Zhihua Cui Chi Ai Lei Lv Fangxian Yin Effect of pulse pressure on borehole stability during shear swirling flow vibration cementing. PLoS ONE |
| title | Effect of pulse pressure on borehole stability during shear swirling flow vibration cementing. |
| title_full | Effect of pulse pressure on borehole stability during shear swirling flow vibration cementing. |
| title_fullStr | Effect of pulse pressure on borehole stability during shear swirling flow vibration cementing. |
| title_full_unstemmed | Effect of pulse pressure on borehole stability during shear swirling flow vibration cementing. |
| title_short | Effect of pulse pressure on borehole stability during shear swirling flow vibration cementing. |
| title_sort | effect of pulse pressure on borehole stability during shear swirling flow vibration cementing |
| url | http://europepmc.org/articles/PMC5690648?pdf=render |
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