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Abstract
Development of hydraulic fracture in lab tests is accompanied by a significant pressure drop in fracturing fluid. This is not normally observed in the field. The pressure drop suggests the presence of a stage of unstable fracture growth in the laboratory samples. The paper shows that unstable fracture growth is produced by interaction between the fracture and free sample surfaces that are parallel to the fracture. This is another difference from the field situation on top of the scale difference, since in the field the presence of a nearby free surfaces parallel and close to the hydraulic fractures is a rare occurrence. This finding is important in analysing the results of laboratory experiments and developing methods of their upscaling.
Original language | English |
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Title of host publication | Multiscale Processes of Instability, Deformation and Fracturing in Geomaterials |
Subtitle of host publication | Proceedings of 12th International Workshop on Bifurcation and Degradation in Geomechanics |
Editors | Elena Pasternak, Arcady Dyskin |
Place of Publication | Cham |
Publisher | Springer |
Pages | 127-135 |
Number of pages | 9 |
Edition | 1 |
ISBN (Electronic) | 978-3-031-22213-9 |
ISBN (Print) | 978-3-031-22225-2, 978-3-031-22212-2 |
DOIs | |
Publication status | Published - 2023 |
Event | 12th International Workshop on Bifurcation and Degradation in Geomechanics - Perth, Australia Duration: 28 Nov 2022 → 1 Dec 2022 |
Publication series
Name | Springer Series in Geomechanics and Geoengineering |
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ISSN (Print) | 1866-8755 |
ISSN (Electronic) | 1866-8763 |
Conference
Conference | 12th International Workshop on Bifurcation and Degradation in Geomechanics |
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Abbreviated title | IWBDG 2022 |
Country/Territory | Australia |
City | Perth |
Period | 28/11/22 → 1/12/22 |
Fingerprint
Dive into the research topics of 'A Mechanism of Unstable Growth of Hydraulic Fractures in Laboratory Experiments'. Together they form a unique fingerprint.Projects
- 1 Finished
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Constricted hydraulic fracture opening
Dyskin, A. (Investigator 01), Pasternak, E. (Investigator 02), Gurevich, B. (Investigator 03), Lebedev, M. (Investigator 04), Bunger, A. (Investigator 05) & Shapiro, S. (Investigator 06)
ARC Australian Research Council
6/06/19 → 31/12/24
Project: Research