Comparative analysis of volumetric flow meters used for mass flow estimation in multiphase and multidensity environments

Due to depletion of on-shore and superficial oil reservoirs, and impulsed by recent discoveries of oil reservoirs in off-shore ultra-deep waters, each of the processes and equipment in oil production required further improvements in order to save costs, space and to reduce weight off-shore. One way to accomplish this is without separators and with the use of online multiphase flowmeters. The most used flowmeter is the Venturi tube. Despite Venturi flowmeters having been used in almost all commercial multiphase flowmeters, there is not a single correlation that provides good results for predicting mass flow in each phase, for any flow pattern, mass quality, void fraction and/or fluids properties. Instead, many correlations have been published, based on experimental and/or field data, but the use of these correlations outside multiphase range conditions is doubtful. This study proposes a new methodology that uses genetic algorithms to find correlations that better fit a set of data, which allow determining the mass flow of a two-phase mix through a Venturi tube. For that purpose, binary trees and Prüfer encoding are used to accomplish this implementation. The correlations found in this new methodology provide lower values of RMS error, 1–3%, against correlations proposed by previous authors that show an RMS error range of 5–10%. This technique allows finding further correlations, regardless the number of parameters to be used, at a low computational cost, and it does not require previous information on the behaviour of the data.

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Finite Element Analysis of the Influence of Vibration Disturbance on Coriolis Mass Flow Meters

2010 International Conference on Intelligent Computation Technology and Automation ◽

10.1109/icicta.2010.213 ◽

2010 ◽

Author(s):

Yao Kai ◽

Zhao Jianhui ◽

Li Fan

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Mass Flow ◽

Element Analysis ◽

Flow Meters

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Experimental determination of the dynamic response of Coriolis mass flow meters

Flow Measurement and Instrumentation ◽

10.1016/j.flowmeasinst.2005.08.001 ◽

2006 ◽

Vol 17 (1) ◽

pp. 39-47 ◽

Cited By ~ 20

Author(s):

C. Clark ◽

R. Cheesewright

Keyword(s):

Dynamic Response ◽

Experimental Determination ◽

Mass Flow ◽

Flow Meters

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Active vibration isolation feedback control for Coriolis Mass-Flow Meters

Control Engineering Practice ◽

10.1016/j.conengprac.2014.09.007 ◽

2014 ◽

Vol 33 ◽

pp. 76-83 ◽

Cited By ~ 7

Author(s):

L. van de Ridder ◽

M.A. Beijen ◽

W.B.J. Hakvoort ◽

J. van Dijk ◽

J.C. Lötters ◽

...

Keyword(s):

Feedback Control ◽

Mass Flow ◽

Vibration Isolation ◽

Flow Meters ◽

Active Vibration ◽

Active Vibration Isolation

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Flow Calibration and Error Analysis of Dual-Axis Tracking Trough Solar Collector System

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.654.262 ◽

2014 ◽

Vol 654 ◽

pp. 262-265

Author(s):

Jian Ling Deng ◽

Yong Zhu ◽

Zi Li Zhou ◽

Rong Rong Zhai ◽

Ji Feng Song ◽

...

Keyword(s):

Experimental Study ◽

Mass Flow ◽

Solar Collector ◽

Rotation Speed ◽

Flow Meter ◽

Flow Measurements ◽

Flow Meters ◽

Collector System ◽

Ultrasonic Flow Meter

In this paper, a dual-axis tracking trough solar collector system is established, and used to measure and calibrate flow rate at different conditions by using the ultrasonic flow meter and mass flow meter, providing important reference for follow-up experimental study. With the changing of the medium’s temperature and the rotation speed variation of the pump, the two flow meters were used to work together to measure the accurate flow measurements, obtaining the measurement error of the mass flow meter. After that, the reason of error and methods used to reduce the error are analyzed.

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