Wet forward combustion for heavy oil recovery

A. Suat Bagci

    Research output: Contribution to journalArticle

    Abstract

    The purpose of this study was to perform wet forward combustion experiments for Bati Kozluca heavy oil under different experimental conditions. In the experiments, a vertical combustion tube was packed with crushed limestone and saturated with crude oil and water. A total of five wet combustion tube runs were conducted. It was observed that peak temperatures were higher when stabilized combustion was achieved and decreased as the combustion front approached the outlet of combustion tube. In wet combustion experiments, excess carbon dioxide productions were observed due to the decomposition of carbonate minerals. The concentration of carbon dioxide increased after the injection of water while the concentration of the oxygen and carbon monoxide decreased. Atomic H/C ratio of the fuel consumed decreased as the average peak temperature increased. Fuel consumption rate also decreased as the water-air ratio increased. The oil recovery was increased with the water injection until the optimum value. After this point, a decrease in oil recovery was observed due to the decrease in peak temperatures in Bati Kozluca crude oil. The main advantage of wet combustion was to reduce air requirements and improve the sweep efficiency by expanding the steam plateau region. Since most of the oil was displaced ahead of the burning front, the steam plateau becomes the primary driving mechanism for oil production.

    Original languageEnglish
    Pages (from-to)221-232
    Number of pages12
    JournalEnergy Sources, Part A: Recovery, Utilization and Environmental Effects
    Volume28
    Issue number3
    DOIs
    Publication statusPublished - 1 Sep 2006

    Fingerprint

    Crude oil
    Recovery
    Carbon dioxide
    Steam
    Carbonate minerals
    Water
    Water injection
    Experiments
    Air
    Limestone
    Fuel consumption
    Carbon monoxide
    Temperature
    Decomposition
    Oxygen
    Oils

    Keywords

    • Atomic H/C ratio
    • Fuel consumed
    • Heavy oil
    • Wet forward combustion

    Cite this

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    Wet forward combustion for heavy oil recovery. / Bagci, A. Suat.

    In: Energy Sources, Part A: Recovery, Utilization and Environmental Effects, Vol. 28, No. 3, 01.09.2006, p. 221-232.

    Research output: Contribution to journalArticle

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    AB - The purpose of this study was to perform wet forward combustion experiments for Bati Kozluca heavy oil under different experimental conditions. In the experiments, a vertical combustion tube was packed with crushed limestone and saturated with crude oil and water. A total of five wet combustion tube runs were conducted. It was observed that peak temperatures were higher when stabilized combustion was achieved and decreased as the combustion front approached the outlet of combustion tube. In wet combustion experiments, excess carbon dioxide productions were observed due to the decomposition of carbonate minerals. The concentration of carbon dioxide increased after the injection of water while the concentration of the oxygen and carbon monoxide decreased. Atomic H/C ratio of the fuel consumed decreased as the average peak temperature increased. Fuel consumption rate also decreased as the water-air ratio increased. The oil recovery was increased with the water injection until the optimum value. After this point, a decrease in oil recovery was observed due to the decrease in peak temperatures in Bati Kozluca crude oil. The main advantage of wet combustion was to reduce air requirements and improve the sweep efficiency by expanding the steam plateau region. Since most of the oil was displaced ahead of the burning front, the steam plateau becomes the primary driving mechanism for oil production.

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