Modelling the damage evolution in rock containing pore fluid by acoustic emission

Peter R. Sammonds, P. G. Meredith, S. A.F. Murrell, I. G. Main

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

Abstract / Description of output

We report results from laboratory triaxial deformation experiments on sandstone specimens containing pore fluid in which the evolution of microcrack damage was continuously monitored by acoustic emission (AE) output. We use the AE output to calculate the evolution of mean strain energy release rate, mean crack length and crack density. We then calculate the evolution of a damage parameter and relate microcracks to the constitutive stress-strain behaviour describing the deformation history. For "drained" experiments there is good quantitative agreement with experimental results.

Original languageEnglish
Title of host publicationSociety of Petroleum Engineers - Rock Mechanics in Petroleum Engineering 1994
PublisherSociety of Petroleum Engineers (SPE)
Pages897-904
Number of pages8
ISBN (Print)9781555634643
Publication statusPublished - 1 Jan 1994
EventSPE/ISRM Rock Mechanics in Petroleum Engineering Conference 1994 - Delft, Netherlands
Duration: 29 Aug 199431 Aug 1994

Publication series

NameSociety of Petroleum Engineers - Rock Mechanics in Petroleum Engineering 1994

Conference

ConferenceSPE/ISRM Rock Mechanics in Petroleum Engineering Conference 1994
Country/TerritoryNetherlands
CityDelft
Period29/08/9431/08/94

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