Abstract:
Multiphase flow meters are often built based on one or many single-phase flow metering technologies.Following the trend, Coriolis meters are being increasingly used in upstream applications in conjunctionwith an independent water cut meter to measure multiphase flow. Coriolis meters are well-known for fiscalmetering applications as they offer unparalleled accuracy without having to input detailed information onthe fluid being metered. They offer two distinct measurements: Density, and mass flow rate, which is oftennot possible with other metering technologies. Subsequently, under multiphase flow, the biggest problemwith liquid Coriolis meters is their tendency to stall when large amounts of gas flows through them. Manymanufacturers over the last 10 years have developed techniques to adjust the drive gain to enhance the abilityof these meters to handle increasing amounts of gas. There have also been several developments in usingadvanced signal processing and machine learning methods to help the meters to self-calibrate and correctfor the presence of gas. These methods range from a simple error analysis on certain raw measurements tomore sophisticated "Digital Twin" based concepts to simulate the behavior of the Coriolis meter internally.The paper describes the concept of "Digital Twin" in detail and outlines the reasons for the superiority ofsuch an approach. Β© 2020, Offshore Technology Conference.
