Shapes of Hydraulic Fractures in the Neighborhood of Cylindrical Cavity

The article presents the theoretical and experimental results on propagation of hydraulic fractures in the neighborhood of an extended cylindrical cavity in an isotropic elastic medium under the hydrostatic stress and in the triaxial stress field composed of unequal components. The influence exerted...

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Bibliographic Details
Published in:Journal of mining science 2021-11, Vol.57 (6), p.943-954
Main Authors: Serdyukov, S. V., Azarov, A. V., Rybalkin, L. A., Patutin, A. V.
Format: Article
Language:English
Subjects:
Axial stress
Compression
Compressive strength
Crack initiation
Crack propagation
Earth and Environmental Science
Earth Sciences
Elastic media
Fracture mechanics
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Hydraulic fracturing
Hydraulics
Mineral Resources
Oil wells
Physical simulation
Rock Failure
Stress distribution
Underground structures
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Summary:The article presents the theoretical and experimental results on propagation of hydraulic fractures in the neighborhood of an extended cylindrical cavity in an isotropic elastic medium under the hydrostatic stress and in the triaxial stress field composed of unequal components. The influence exerted on the curvature and volume of the created fractures by the fracture initiator and cavity spacing, as well as by the strength and compression of the medium is illustrated. The main types and conditions of the created fractures are described. The physical simulation and the full-scale experiment prove the numerical research reliability and the applicability of the program and method solutions in design of hydraulic fracturing at short distances from underground openings and structures.
ISSN:1062-7391
1573-8736
DOI:10.1134/S1062739121060077