Gas/oil/water flow measurement by electrical capacitance tomography

Yi Li, Wuqiang Yang, Cheng Gang Xie, Songming Huang, Zhipeng Wu, Dimitrios Tsamakis, Chris Lenn

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    Abstract

    In the oil industry, it is important to measure gas/oil/water flows produced from oil wells. To determine oil production, it is necessary to measure the water-in-liquid ratio (WLR), liquid fraction and some other parameters, which are related to multiphase flow rates. A research team from the University of Manchester and Schlumberger Gould Research have developed an experimental apparatus for gas/oil/water flow measurement based on a flow-conditioning device and electrical capacitance tomography (ECT) and microwave sensors. This paper presents the ECT part of the developed apparatus, including the re-engineering of an ECT sensor and a model-based image reconstruction algorithm, which is used to derive the WLR and the thickness of the liquid layer in oil-continuous annular flows formed by the flow-conditioning device. The ECT sensor was tested both at Schlumberger and on TUV-NEL's Multiphase Flow Facility. The experimental results are promising. © 2013 IOP Publishing Ltd.
    Original languageEnglish
    Article number074001
    JournalMeasurement Science and Technology
    Volume24
    Issue number7
    DOIs
    Publication statusPublished - 12 Jun 2013

    Keywords

    • electrical capacitance tomography
    • gas/oil/water flows
    • liquid fraction
    • multiphase flow measurement
    • water-in-liquid ratio

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