Chemo-mechanical permeability evolution in wellbore-cement fractures exposed to carbon-dioxide-rich brines

S. D.C. Walsh, W. L. Du Frane, Y. Sholokhova, R. Settgast, S. M. Johnson, S. A. Carroll

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

2 Citations (Scopus)

Abstract

Fractures in wellbore cement and at the cement-host rock interface are potential leakage pathways for long-term carbon sequestration sites. Portland cement exposed to carbon-dioxide-rich brine undergoes a series of diffusion-limited reactions that form distinctive reaction fronts adjacent to the cement surface. This paper outlines a joint experimental and numerical modeling effort investigating the formation of these reaction fronts and their impact on fracture transmissivity. Prepared by LLNL under Contract DE-AC52-07NA27344.

Original languageEnglish
Title of host publication46th US Rock Mechanics / Geomechanics Symposium 2012
Pages353-359
Number of pages7
Volume1
Publication statusPublished - 1 Dec 2012
Externally publishedYes
EventUS Rock Mechanics / Geomechanics Symposium 2012 - Chicago, United States of America
Duration: 24 Jun 201227 Jun 2012
Conference number: 46th

Conference

ConferenceUS Rock Mechanics / Geomechanics Symposium 2012
CountryUnited States of America
CityChicago
Period24/06/1227/06/12
OtherThe American Rock Mechanics Association invites you to its 46th Mechanics/ GeoMechanics Symposium to be held in Chicago, Illinois, USA on 24-27 june 2012

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