Water cut determination in co-current liquid-liquid flow using electrical capacitance metering

Yessica Arellano, Andrew Hunt, Olivier Haas, Hafiz Ahmed, Lu Ma

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    Despite intensive research dedicated to multiphase flow measurement in the past decades, accuracy remains one of the key challenges in the oil and gas industry. The Multiphase flow of gas-liquid mixtures has been extensively addressed in the literature. However liquid-liquid flows, are intrinsically more complex and their hydrodynamics are not yet completely understood.
    The present study investigates the capabilities of in-line tomography technologies for water cut determination in co-current immiscible liquid-liquid flows. The proposed experimental metering system operates by interrogating the imaging region contained by the pipe walls with a high-frequency alternating electric field. The experiments are conducted on the horizontal section of a flow rig of 100mm in diameter using synthetic oil and saline water as test fluids. Measurements of stratified flows from electric capacitance tomography are contrasted to measurements from an electrical capacitance meter. Measurements enable the computation of water cut in horizontal pipes for diverse flowrates. The results show for the first time the potential of using high frequency non-intrusive electric capacitance meters for oil-water flow measurement.
    Original languageEnglish
    Publication statusPublished - 26 Jun 2019
    Event18th International Flow Measurement Conference - LNEC, Lisbon, Portugal
    Duration: 26 Jun 201928 Jun 2019
    Conference number: 18


    Conference18th International Flow Measurement Conference
    Abbreviated titleFLOMEKO 2019
    Internet address


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