The AOGV was installed on a flanged connection to isolate a spool in order to facilitate modification and maintenance work on the line. The AOGV inserted a blind spade as a safe barrier and allowed safe draining and flushing of the spool.
Following the positive isolation by blind spade, draining and flushing, personnel at site could perform the modification and maintenance work on the line.
The system was then reinstated with a new flange gasket. The AOGV operation was performed in good cooperation with onboard personnel and executed without incidents.
The operation was executed in May-21, for an Operator at NCS (Norwegian Continental Shelf)
AOGV Key Metrics:
- Flange: 2” – Class 300
- Operation pressure: 12 bar
- Medium: Condensate
- Temperature: Ambient