Modeling fracture initiation and propagation from a pressurized hole: A dislocation-based approach

Roberto Carbonell, Emmanuel Detournay

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Scopus citations

Abstract

This paper presents an approach to analyze the breakdown process of a pressurized circular cavity. Such a process is associated with the initiation and propagation of two radial symmetric tensile fractures. This problem is solved semi-analytically by making use of the exact elastic solution of a finite dislocation, which satisfies homogeneous boundary conditions at the circular cavity and at infinity. This approach leads to the formulation of a singular integral equation which is solved numerically using Erdogan and Gupta (1972) method. Application of this method to the analysis of the breakdown pressure in a hydraulic fracturing stress test is then described and the influence of the far-field stress, pressurization rate, and size of the borehole on the wellbore pressure response is discussed. Rock Mechanics Daemen & Schultz (eds).

Original languageEnglish (US)
Title of host publication35th U.S. Symposium on Rock Mechanics, USRMS 1995
Editors Daemen, Schultz
PublisherAmerican Rock Mechanics Association (ARMA)
Pages465-470
Number of pages6
ISBN (Print)9054105526, 9789054105527
StatePublished - Jan 1 1995
Event35th U.S. Symposium on Rock Mechanics, USRMS 1995 - Reno, United States
Duration: Jun 5 1995Jun 7 1995

Publication series

Name35th U.S. Symposium on Rock Mechanics, USRMS 1995

Other

Other35th U.S. Symposium on Rock Mechanics, USRMS 1995
Country/TerritoryUnited States
CityReno
Period6/5/956/7/95

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