Effect of Seepage Force on the Wellbore Breakdown of a Vertical Wellbore
As a fluid flows through a porous media, a drag force, called seepage force in the paper, will be formed on the matrix of the media in the fluid flowing direction. However, the seepage force is normally ignored in the analysis of wellbore fracturing during hydraulic fracturing operation. In this pap...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2021/8871535 |
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| author | Desheng Zhou Haiyang Wang Yafei Liu Shun Liu Xianlin Ma Wenbin Cai Hai Huang |
| author_facet | Desheng Zhou Haiyang Wang Yafei Liu Shun Liu Xianlin Ma Wenbin Cai Hai Huang |
| author_sort | Desheng Zhou |
| collection | DOAJ |
| description | As a fluid flows through a porous media, a drag force, called seepage force in the paper, will be formed on the matrix of the media in the fluid flowing direction. However, the seepage force is normally ignored in the analysis of wellbore fracturing during hydraulic fracturing operation. In this paper, an analytical model for seepage force around a vertical wellbore is presented based on linear elasticity theory, and the effect of the seepage force on wellbore breakdown has been analyzed. Also studied are the effects of the two horizontal principal stresses and the reservoir permeability on the action of seepage force. The paper proves that seepage force lowers formation breakdown pressure of a vertical wellbores; the deeper a formation is, the greater action of the seepage force; seepage force contributes more to breakdown formation with small difference of the two horizontal stresses such as unconventional reservoirs; seepage force increases as rock permeability decreases, and it should not be ignored in hydraulic fracturing analysis, especially for low-permeability formation. |
| format | Article |
| id | doaj-art-7d179bf0eb724408ad0a42c1b5c5f4fb |
| institution | Kabale University |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-7d179bf0eb724408ad0a42c1b5c5f4fb2025-02-03T05:52:31ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/88715358871535Effect of Seepage Force on the Wellbore Breakdown of a Vertical WellboreDesheng Zhou0Haiyang Wang1Yafei Liu2Shun Liu3Xianlin Ma4Wenbin Cai5Hai Huang6School of Petroleum Engineering, Xi’an Shiyou University, Xi’an 710065, ChinaSchool of Petroleum Engineering, Xi’an Shiyou University, Xi’an 710065, ChinaSchool of Petroleum Engineering, Xi’an Shiyou University, Xi’an 710065, ChinaEngineering Research Center of Development and Management for Low to Extra-Low Permeability Oil & Gas Reservoirs in West China, Ministry of Education, Xi’an Shiyou University, Xi’an, 710065 Shaanxi, ChinaSchool of Petroleum Engineering, Xi’an Shiyou University, Xi’an 710065, ChinaSchool of Petroleum Engineering, Xi’an Shiyou University, Xi’an 710065, ChinaSchool of Petroleum Engineering, Xi’an Shiyou University, Xi’an 710065, ChinaAs a fluid flows through a porous media, a drag force, called seepage force in the paper, will be formed on the matrix of the media in the fluid flowing direction. However, the seepage force is normally ignored in the analysis of wellbore fracturing during hydraulic fracturing operation. In this paper, an analytical model for seepage force around a vertical wellbore is presented based on linear elasticity theory, and the effect of the seepage force on wellbore breakdown has been analyzed. Also studied are the effects of the two horizontal principal stresses and the reservoir permeability on the action of seepage force. The paper proves that seepage force lowers formation breakdown pressure of a vertical wellbores; the deeper a formation is, the greater action of the seepage force; seepage force contributes more to breakdown formation with small difference of the two horizontal stresses such as unconventional reservoirs; seepage force increases as rock permeability decreases, and it should not be ignored in hydraulic fracturing analysis, especially for low-permeability formation.http://dx.doi.org/10.1155/2021/8871535 |
| spellingShingle | Desheng Zhou Haiyang Wang Yafei Liu Shun Liu Xianlin Ma Wenbin Cai Hai Huang Effect of Seepage Force on the Wellbore Breakdown of a Vertical Wellbore Geofluids |
| title | Effect of Seepage Force on the Wellbore Breakdown of a Vertical Wellbore |
| title_full | Effect of Seepage Force on the Wellbore Breakdown of a Vertical Wellbore |
| title_fullStr | Effect of Seepage Force on the Wellbore Breakdown of a Vertical Wellbore |
| title_full_unstemmed | Effect of Seepage Force on the Wellbore Breakdown of a Vertical Wellbore |
| title_short | Effect of Seepage Force on the Wellbore Breakdown of a Vertical Wellbore |
| title_sort | effect of seepage force on the wellbore breakdown of a vertical wellbore |
| url | http://dx.doi.org/10.1155/2021/8871535 |
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