Journal
IEEE SENSORS JOURNAL
Volume 17, Issue 24, Pages 8224-8233Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSEN.2017.2705063
Keywords
Oil-water two-phase flow; oil volume fraction; high conductivity; electrical resistance tomography
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Oil-water two-phase flows are encountered in various process industries, such as petroleum and chemical. The measurement of oil volume fraction and its distribution is of particular importance for managing oil production and water disposal and/or water reinjection. The water phase in these environments always has high electrical conductivity, which incurs significant difficulties for oil volume fraction measurement using electrical resistance tomography (ERT). In this paper, a method of solving this problem is introduced. A pilot plant scale flow loop at TUV NEL Ltd. was used to measure oil distribution and oil volume fraction in the range of 0-0.4. The total volumetric flow rate of oil and water was 30, 60, and 90 m(3)/h. High-electrical conductivity of water in 27.6 mS/cm was applied as continuous phase. The measurement results from ERT were validated by the readings of NEL's references and flow patterns were compared with visual observation, which demonstrated that ERT was able to visualize the oil phase distribution and monitor the local and overall oil volume fraction up to 0.4.
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