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Measurement of vertical oil-in-water two-phase flow using dual-modality ERT–EMF system

Faraj, Yousef
; 
Wang, Mi
; 
Jia, Jiabin
; 
Wang, Qiang
; 
Xie, Cheng-gang
; 
Oddie, Gary
; 
Primrose, Ken
; 
Qiu, Changhua
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Affiliation
University of Leeds; Sate Key Lab. of O&G Reservoir Geology and Exploitation, Southwest Petroleum University, China; Schlumberger Gould Research, Cambridge; Industrial Tomography System plc, Manchester
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Publication Date
2015-08-21
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Chemical Engineering
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Abstract
Oil-in-water two-phase flows are often encountered in the upstream petroleum industry. The measurement of phase flow rates is of particular importance for managing oil production and water disposal and/or water reinjection. The complexity of oil-in-water flow structures creates a challenge to flow measurement. This paper proposes a new method of two-phase flow metering, which is based on the use of dual-modality system and multidimensional data fusion. The Electrical Resistance Tomography system (ERT) is used in combination with a commercial off-the-shelf Electromagnetic Flow meter (EMF) to measure the volumetric flow rate of each constituent phase. The water flow rate is determined from the EMF with an input of the mean oil-fraction measured by the ERT. The dispersed oil-phase flow rate is determined from the mean oil fraction and the mean oil velocity measured by the ERT cross-correlation velocity profiling. Experiments were carried out on a vertical upward oil-in-water pipe flow, 50 mm inner-diameter test section, at different total liquid flow rates covering the range of 8–16 m3/hr. The oil and water flow rate measurements obtained from the ERT and the EMF are compared to their respective references. The accuracy of these measurements is discussed and the capability of the measurement system is assessed.
Citation
Faraj, Y., Wang, M., Jia, J., Wang, Q., Xie, C., Oddie, G., Primrose, K. Qui, C. (2015). Measurement of Vertical Oil-in-water Two-phase Flow Using Dual-modality ERT/EMF System. Flow Measurement and Instrumentation, 46, 255-261.
Publisher
Elsevier
Journal
Flow Measurement and Instrumentation
Research Unit
URI
http://hdl.handle.net/10034/623908
DOI
10.1016/j.flowmeasinst.2015.08.010
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Article
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ISSN
0955-5986
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https://www.sciencedirect.com/science/article/pii/S0955598615300108