A Continuum-Damage-Mechanics Model of Hydraulic Fracturing (includes associated papers 26282, 26303, 27734 and 27738 ) Academic Article uri icon

abstract

  • This work introduces a relatively new branch of fracture mechanics, continuum damage mechanics (CDM), as an extension to current hydraulic-fracture-propagation models. The new approach attempts to resolve inconsistencies evident in current model applications. The fluid-flow-constrained tip-propagation boundary condition of the Perkins-Kern-Nordgren (PKN) model is replaced by a new one derived from continuum damage mechanics. This paper demonstrates how 'abnormally high treating pressures' can be interpreted by identifying a combined parameter responsible for fracture-propagation retardation. Model results are given in a form suitable for computer representation to allow easy application in treating pressure interpretation and designing fracture treatments.

author list (cited authors)

  • Valko, P., & Economides, M. J.

citation count

  • 6

publication date

  • March 1993