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Tie-ins & Decomissioning
Tie-in operations typically cover planned modifications on production systems or utilities and in most cases, common practice involves full or partial system shutdown. Where possible, tie-in work is scheduled to coincide with a planned shutdown, allowing for improved planning and minimizing downtime. However, in many instances Shutdowns or Turnarounds are planned at 4 yearly intervals; a frequency which may not fit the tie-in requirement and lead to severe commercial impacts on the project.
Where tie-ins are connected via pre-installed blind flanges, or where existing spools are to be replaced with tie-in branches, the AOGV mechanical isolation system can be an attractive alternative.
Izomax has successfully executed tie-ins on utilities and production systems outside of shutdowns using our mechanical isolation system.
In a recent study for a Norwegian customer, a platform tie-in was evaluated resulting in a step change for tie-in planning; the tie-in would not require any downtime or system shutdowns utilizing the AOGV positive isolation system.
Applications
The AOGV provides positive isolation without any physical modifications or
lasting impact to the process plant.