Fracture-mechanics analysis of the breakdown process in minifracture or leakoff test

Emmanuel M Detournay; Roberto Carbonell

doi:10.2118/28076-PA

Fracture-mechanics analysis of the breakdown process in minifracture or leakoff test

Emmanuel M Detournay, Roberto Carbonell

Civil, Environmental, and Geo- Engineering

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Abstract

The breakdown pressure - the peak pressure that is reached during pressurization of the wellbore - is interpreted in this paper to correspond to a condition of unstable crack propagation. It is shown that the classical Hubbert and Willis¹⁴ and Haimson and Fairhurst⁹ breakdown criteria represent a condition of fracture initiation in the limiting case of fast and slow pressurization rate, respectively; and that the breakdown pressure, p_b, could be either equal to or larger than the fracture-initiation pressure, p_i.

Original language	English (US)
Pages (from-to)	195-199
Number of pages	5
Journal	SPE Production and Facilities
Volume	12
Issue number	3
DOIs	https://doi.org/10.2118/28076-PA
State	Published - Aug 1997

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Fracture-mechanics analysis of the breakdown process in minifracture or leakoff test

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