Poroelastic concepts explain some of the hydraulic fracturing mechanisms

Emmanuel M Detournay, J. D. McLennan, J. C. Roegiers

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

18 Scopus citations

Abstract

This paper reviews the role of coupled diffusion/deformation phenomena in the various facets associated with hydraulic fracturing: Breakdown, propagation and closure, and the assessment of these effects by means of Biot's linear theory of poroelasticity. The poroelastic concepts are first recalled and emphasis is placed on the fundamental parameters needed. The importance of the coupling terms in the elasticity and diffusion equations is also stressed. The general equations are then simplified for two particular applications: One-dimensional column and radi a 1 symmetry. It is then shown that the reservoir history as well as the percolation occurring prior to hydraulic fracture initiation affects the breakdown pressure value. Poroelastic models also explain the decrease of propagation pressure with pore pressure, as has been often reported in the field. Finally, the fracture closure is considered and the coupling mechanisms clearly demonstrate the width decrease as well as the increase of shut-in pressure with time.

Original languageEnglish (US)
Title of host publicationSociety of Petroleum Engineers - SPE Unconventional Gas Technology Symposium, UGT 1986
PublisherSociety of Petroleum Engineers
Pages629-637
Number of pages9
ISBN (Electronic)9781555636098
StatePublished - Jan 1 1986
Externally publishedYes
EventSPE Unconventional Gas Technology Symposium, UGT 1986 - Louisville, United States
Duration: May 18 1986May 21 1986

Publication series

NameSociety of Petroleum Engineers - SPE Unconventional Gas Technology Symposium, UGT 1986

Conference

ConferenceSPE Unconventional Gas Technology Symposium, UGT 1986
CountryUnited States
CityLouisville
Period5/18/865/21/86

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  • Cite this

    Detournay, E. M., McLennan, J. D., & Roegiers, J. C. (1986). Poroelastic concepts explain some of the hydraulic fracturing mechanisms. In Society of Petroleum Engineers - SPE Unconventional Gas Technology Symposium, UGT 1986 (pp. 629-637). (Society of Petroleum Engineers - SPE Unconventional Gas Technology Symposium, UGT 1986). Society of Petroleum Engineers.