The geochemical reactions resulting from CO2 injection into the midale formation, Weyburn oilfield; A laboratory experimental and modelling study

M. Azaroual, P. Durst, I. Czernichowski-Lauriol, D. Olsen, N. Stentoft, N. Springer, C.A. Rochelle, J. Pearce, K. Bateman, D. Birchall

Publikation: Bidrag til bog/rapport/konferenceproceedingsKonferenceartikel i proceedingspeer review

2 Citationer (Scopus)

Abstrakt

This chapter provides an overview of fluid chemical and mineralogical changes occurring in a series of well-constrained laboratory experiments that have utilized samples of Midale core from the Weybum field and synthetic formation water based upon measured well fluid compositions. Experimental and theoretical studies of the effects of CO 2 injection into the Midale lithologies indicate variable amounts of carbonate mineral dissolution, some precipitation of gypsum "inhibition" of anhydrite dissolution, and poor (i.e. slow) reactivity of alumino-silicate minerals over the timescale of the experiments. These indications helped develop appropriate hypothesis and approaches to simulate the long term evolution of an ID model representing CO 2 injection into the host Midale Marly formation. The key objective of the chapter is to investigate the reactions between injected CO 2, Midale lithologies, and porewaters under temperatures and pressures representative of in-situ conditions. The laboratory studies involved closed system batch experiments reacting samples of Midale reservoir rocks (Midale Marly, Midale Vuggy) and "cap rock" (Midale Evaporite) with synthetic saline reservoir porewaters.

OriginalsprogEngelsk
TitelProceedings of the 7th International Conference on Greenhouse Gas Control Technologies 5 – 9 September 2004, Vancouver, Canada. Volume II - Part 2
RedaktørerE.S. Rubin, D.W. Keith, C.F. Gilboy, M. Wilson, T. Morris, J. Gale, K. Thambimuthu
ForlagElsevier
Sider2107-2110
Antal sider4
Vol/bind2
ISBN (Trykt)978-0-08-044704-9
DOI
StatusUdgivet - 2005
Begivenhed7th International Conference on Greenhouse Gas Control Technologies - Vancouver, Canada
Varighed: 5 sep. 20049 sep. 2004

Konference

Konference7th International Conference on Greenhouse Gas Control Technologies
Forkortet titelGHGT-7
Land/OmrådeCanada
ByVancouver
Periode5/09/049/09/04

Programområde

  • Programområde 3: Energiressourcer

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