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Numerical and Optimisation Studies of CO2 Dissolution and Trapping Efficiency in Saline AquifersNormal access

Authors: P.O. Ezeanyim and S.M. Shariatipour
Event name: 78th EAGE Conference and Exhibition 2016
Session: CO2 Sequestration and Storage
Publication date: 31 May 2016
DOI: 10.3997/2214-4609.201601075
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 1.12Mb )
Price: € 20

This study suggests that it is more favorable for CCS projects to be performed in tilted aquifers provided the CO2 injection points are not close to any outcrops or structural imperfections of the aquifer. Through the use of horizontal wells and brine injection, the vertical velocity of the migrating plume can be reduced. Development decisions such as well completions, well placement and injection strategies to be utilized influences the rate of CO2 dissolution and the trapping efficiency of long term storage of CO2 in saline aquifers. Brine production from the storage formation was observed to have variable effects on the rate of CO2 dissolution, trapping efficiency and pressure relief based on strategic operational conditions.

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