US 11,747,185 B2
Systems and methods for multiphase flow metering accounting for dissolved gas
Manus Henry, oxford (GB); Richard P. Casimiro, North Kingstown, RI (US); Michael S. Tombs, Oxford (GB); and Alice Anne Probst, Fullerton, CA (US)
Assigned to SCHNEIDER ELECTRIC SYSTEMS USA, INC., Foxboro, MA (US)
Filed by Schneider Electric Systems USA, Inc., Foxboro, MA (US)
Filed on Sep. 28, 2020, as Appl. No. 17/34,108.
Application 17/034,108 is a division of application No. 15/859,836, filed on Jan. 2, 2018, granted, now 10,837,815.
Application 15/859,836 is a division of application No. 14/634,521, filed on Feb. 27, 2015, granted, now 9,863,798, issued on Jan. 9, 2018.
Prior Publication US 2021/0010843 A1, Jan. 14, 2021
Int. Cl. G01F 1/84 (2006.01); G01F 1/74 (2006.01)
CPC G01F 1/8436 (2013.01) [G01F 1/74 (2013.01); G01F 1/8468 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A net oil and gas skid for use characterizing the output from one or more petroleum wells, the net oil and gas skid comprising:
a vibratable flowtube configured for receiving a multiphase fluid from said one or more petroleum wells;
a driver configured to vibrate the flowtube;
a pair of sensors configured to detect movement of the flowtube at different locations on the flowtube and output sensor signals indicative of the detected movement;
a temperature sensor configured to measure a temperature of the multiphase fluid;
a pressure sensor configured to measure a pressure of the multiphase fluid;
a water cut meter adapted to measure relative amounts of oil and water in the multiphase fluid; and
one or more processors configured to receive the sensor signals, determine a phase difference between the sensor signals, and use the determined phase difference to determine a fluid flow rate through the flowtube, wherein said one or more processors are further configured to:
receive a signal from the water cut meter indicative of relative amounts of oil and water in the multiphase fluid;
determine a density of the multiphase fluid in the flowtube using the sensor signals; and
determine an amount of dissolved gas in the multiphase fluid using the temperature and pressure of the multiphase fluid.