A major operator approached Expro looking for a metering solution for the produced water overboard line on a North Sea platform
To meet OSPAR regulations the customer needed to upgrade their existing in-line metering
The customer intitially installed other flow meter types:
In line mag meter
Clamp on ultrasonic meter
Both meters provide unreliable flow measurements due to the high salinity, conductiivity and the presence of oil, fine sand and dissolved gas
Expro provided a non-intrusive permanent metering solution which had a measurement accuracy of (± 2%) which was well within the customer's requirements
Expro Excellence
Our customer was cautious in purchasing a third meter, however an Expro ActiveSONAR™ flow meter was initially provided on a temporary surveillance basis. The meter was clamped onto the pipe downstream of the pipe reducer and also positioned upstream on the in-line magnetic flow meter and on the flow line control valve, non ideal flow conditioning
There was no adverse effect on the Expro ActiveSONAR™ meter measurement due to the salinity, solids and or oil. Expro's flow studio diagnostics demonstrated the presence of entrained air from the pumps
Subsequently the flow meter was integrated into the platform DAQ system to provide real time data
Value to Client
Expro's ActiveSONAR™ meter provided a successful solution in providing metering where multiple flow meter types had failed previously
The customer was satisfied with the data provided onsite during the surveillance and decided to purchase the meter
The customer met OSPAR regulations with a measurement accuracy ± 2%
Contact
For further information, please contact WFM@expro.com.