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Title: Is It A Must To Add Upstream Devices For High Gvf Multiphase?
Author: Jianwen Dou, Jason Guo, Gokulnath R.
Source: 2005 North Sea Flow Measurement Workshop
Year Published: 2005
Abstract: High accuracies in measurement of the gross liquid and net oil flow rates at high GVF levels in the multiphase flow is identified as one of the most demanding needs of the industry, especially in high watercut environments. The underlying factor that decides the accuracy of the net oil flow rate measurement is the accuracy at which the gross liquid & watercut are measured and the prevailing watercut in the flow. It is an established fact that accuracies falter with increasing GVF in the multiphase flow. The purpose of this paper is to present the performance results of a newly developed Compact High GVF Haimo multiphase meter that addresses the above needs, without having to use an Upstream Separation Device for high GVF application while retaining the accuracies within +2% absolute for watercut and 10% relative for liquid and gas flow rates at 90% confidence level. while also optimising the footprint, the cost, the weight of the solution Further developmental work and trials are in progress to achieve the targeted accuracy levels under very high GVF conditions as well.

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