Étude expérimentale du comportement en bout d'une fracture hydraulique se propageant près d'une surface libre

Translated title of the contribution: Crack tip behavior in near-surface fluid-driven fracture experiments

Andrew P. Bunger, Emmanuel Detournay, Robert G. Jeffrey

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

This Note presents experimental results for the near-tip fracture opening of fluid-driven fractures. The effect of fluid viscosity, quantified by a dimensionless parameter, was varied between tests. The tip region closely followed the classical square-root behavior from linear elastic fracture mechanics when the viscosity parameter was small. Conversely, when the viscosity parameter was of order one and the lag between the fluid-filled region and the fracture front accounted for less than 30% of the fracture, the tip region behaved according to a known intermediate asymptotic solution which results from the solid/fluid coupling. To cite this article: A.P. Bunger et al., C. R. Mecanique 333 (2005). Crown

Translated title of the contributionCrack tip behavior in near-surface fluid-driven fracture experiments
Original languageFrench
Pages (from-to)299-304
Number of pages6
JournalComptes Rendus - Mecanique
Volume333
Issue number4
DOIs
StatePublished - Apr 2005

Bibliographical note

Funding Information:
The authors wish to acknowledge funding from the Australian Coal Association Research Program (ACARP), CSIRO Petroleum, the Theodore Bennett Chair, and Schlumberger.

Keywords

  • Fracture mechanics
  • Hydraulic fracture
  • Rupture

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