The effect of constriction in hydraulic fracturing
© Springer International Publishing AG 2017. Fractures in geomaterials e.g., hydraulic fractures often contain bridges—parts of unbroken material connecting the opposite faces of the fracture distributed over the fracture and constricting its opening. Our laboratory experiments demonstrate that the...
| Main Authors: | , , , , |
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| Format: | Conference Paper |
| Published: |
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/58450 |
| _version_ | 1848760263331807232 |
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| author | He, J. Pasternak, E. Dyskin, A. Lebedev, M. Gurevich, Boris |
| author_facet | He, J. Pasternak, E. Dyskin, A. Lebedev, M. Gurevich, Boris |
| author_sort | He, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © Springer International Publishing AG 2017. Fractures in geomaterials e.g., hydraulic fractures often contain bridges—parts of unbroken material connecting the opposite faces of the fracture distributed over the fracture and constricting its opening. Our laboratory experiments demonstrate that the bridges can even hold the sample cut through by a fracture together, in one piece. We model such a fracture as a crack with Winkler layer whose stiffness is controlled by the bridge geometry and distribution. The model shows that short constricted fractures are insignificantly different from the conventional cracks; only large fractures, i.e. the fractures whose size is of the order of the characteristic scale of the bridge constriction are affected. The constricted fractures have the opening and the Mode I stress intensity factor bound as the fracture dimensions proportionally increase, which distinguish them from the conventional cracks where both the opening and the stress intensity factors tend to infinity as the crack size increases. |
| first_indexed | 2025-11-14T10:13:00Z |
| format | Conference Paper |
| id | curtin-20.500.11937-58450 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:13:00Z |
| publishDate | 2017 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-584502017-11-24T05:45:57Z The effect of constriction in hydraulic fracturing He, J. Pasternak, E. Dyskin, A. Lebedev, M. Gurevich, Boris © Springer International Publishing AG 2017. Fractures in geomaterials e.g., hydraulic fractures often contain bridges—parts of unbroken material connecting the opposite faces of the fracture distributed over the fracture and constricting its opening. Our laboratory experiments demonstrate that the bridges can even hold the sample cut through by a fracture together, in one piece. We model such a fracture as a crack with Winkler layer whose stiffness is controlled by the bridge geometry and distribution. The model shows that short constricted fractures are insignificantly different from the conventional cracks; only large fractures, i.e. the fractures whose size is of the order of the characteristic scale of the bridge constriction are affected. The constricted fractures have the opening and the Mode I stress intensity factor bound as the fracture dimensions proportionally increase, which distinguish them from the conventional cracks where both the opening and the stress intensity factors tend to infinity as the crack size increases. 2017 Conference Paper http://hdl.handle.net/20.500.11937/58450 10.1007/978-3-319-56397-8_77 restricted |
| spellingShingle | He, J. Pasternak, E. Dyskin, A. Lebedev, M. Gurevich, Boris The effect of constriction in hydraulic fracturing |
| title | The effect of constriction in hydraulic fracturing |
| title_full | The effect of constriction in hydraulic fracturing |
| title_fullStr | The effect of constriction in hydraulic fracturing |
| title_full_unstemmed | The effect of constriction in hydraulic fracturing |
| title_short | The effect of constriction in hydraulic fracturing |
| title_sort | effect of constriction in hydraulic fracturing |
| url | http://hdl.handle.net/20.500.11937/58450 |