Geochemical Investigation of the Combined Effect of Injecting Low Salinity Water and Carbon Dioxide on Carbonate Reservoirs

Emad W. Al-Shalabi, Kamy Sepehrnoori, Gary Pope

    Research output: Contribution to journalConference articlepeer-review

    15 Scopus citations

    Abstract

    This paper uses geochemical modeling to investigate the combined effect of low salinity water injection (LSWI) and CO2 on carbonate oil reservoirs. The geochemical modeling of recently published corefloods was performed using the PHREEQC simulator. Geochemical analysis show that the change in surface charge of carbonates by varying pH is more pronounced using LSWI only than is the combined effect of LSWI and CO2 injection. The combined effect of LSWI and CO2 is most prominent on carbonates with high dolomite composition, whereas carbonates with high anhydrite composition are most affected by LSWI only.

    Original languageBritish English
    Pages (from-to)7663-7676
    Number of pages14
    JournalEnergy Procedia
    Volume63
    DOIs
    StatePublished - 2014
    Event12th International Conference on Greenhouse Gas Control Technologies, GHGT 2014 - Austin, United States
    Duration: 5 Oct 20149 Oct 2014

    Keywords

    • Combined effect of LSWI and CO
    • Geochemical modeling
    • Low salinity water injection (LSWI)
    • LSWI and CO in carbonates
    • Wettability alteration by LSWI

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