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Title: Multiphase Measurement Using Ultrasonic Technology - Testing A Conceptual Design
Author: Craig Coull, Gary Miller
Source: Flomeko 2005
Year Published: 2005
Abstract: The measurement of multiphase flow has become a vital component in the economic viability of many marginal oil and gas fields, particularly on the UK continental shelf. To reduce capital expenditure, most new fields are now being commingled and tied back to existing platform infrastructures for processing, and established facilities are being de-manned and automated. This has raised a requirement for reliable and low-cost measurement systems to facilitate well testing, production optimisation and commercial allocation of the produced fluids. Multiphase meters are invariably used for this purpose but remain too expensive for the ideal deployment of one unit per well-head, they also frequently use radioactive sources. Ultrasonic flowmeters, on the other hand, offer the possibility of a cheaper, more environmentally acceptable solution, with the added potential to operate at high gas volume fractions (90% +), where the accuracy of multiphase meters deteriorates rapidly. Previous research 1 2 3 has shown the potential benefits of ultrasonic technology in the measurement of multiphase and wet gas flows.

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