Effect of well pattern and injection well type on the CO2-assisted gravity drainage enhanced oil recovery

Prashant Jadhawar, H. Sarma

    Research output: Contribution to journalArticlepeer-review

    Abstract

    First ever reported mechanistic benefits of production strategy on CO2-assisted gravity drainage EOR method through reservoir simulations. Effects of well patterns (vertical injection / horizontal production wells) and type of gas injection wells were investigated using fully compositional 3D reservoir model. Key operational characteristics were identified through monitoring the CO2 floodfront / its breakthrough, oil production rate and respective GOR behaviour, reservoir pressure to satisfy the fundamental Cardwell Parson’s criteria. Other supporting mechanisms (swelling, extraction/ vaporization) were reported at the selective block level. This paper exemplifies the key operational mechanisms supported by fundamental theories. These are first extensive research results based on the reservoir simulations.
    Original languageEnglish
    Pages (from-to)83-94
    Number of pages12
    JournalJournal of Petroleum Science and Engineering
    Volume98-99
    DOIs
    Publication statusPublished - Nov 2012

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