GROWTH RATE OF A PENNY-SHAPED CRACK IN HYDRAULIC FRACTURING OF ROCKS.

H. Abe*, T. Mura, L. M. Keer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

124 Scopus citations

Abstract

The stable growth of a crack created by the hydraulic pressurizing of a penny-shaped crack in a dry rock mass is investigated. The rock mass is infinitely extended, homogeneous, and isotropic. It is verified on the basis of the equations of fluid dynamics that the fracturing fluid cannot penetrate the entire domain of a crack when the crack is moving. The effects of various terms in the basic equations are also studied. The solution of some typical examples is given, and the significant effect of the stress intensity factor of the rock on the crack propagation is shown. When the crack is expanding under a constant flow rate, the classical solution is found to be approximately valid for very large cracks, and nevertheless the crack is stable.

Original languageEnglish (US)
Pages (from-to)5335-5340
Number of pages6
JournalJ Geophys Res
Volume81
Issue number29
DOIs
StatePublished - Jan 1 1976

ASJC Scopus subject areas

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

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