|Company:||NAM – K15-FA-1 platform|
|Situation:||Repair of equipment on gas export line|
|Result:||Reduction of platform downtime and limit blowdown volume|
NAM Onegas K15-FA-1 is a Shell operated production platform, located in the Dutch sector of the Southern North Sea.
The DBB-SAVER was used in order to safely perform maintenance activities. A passing riser valve was mitigated by simply connecting a DBB-SAVER to the valve body cavity. After removal of the safe relief venting plug, this was replaced by a 1″ full bore valve for convenient future connection of a DBB-SAVER. Operation was not jeopardized and other connecting platforms were able to keep producing and transporting their gas via the common subsea pipeline system to onshore installations. Without the DBB-SAVER, this would not have been possible.
The DBB-SAVER was placed on the spider deck, and was connected via HP hoses to the body cavity bleed point. The gas exiting the DBB-SAVER was safely vented away near the sea surface. This guaranteed no gas release within the topside modules.
The DBB-SAVER can be specified for offshore applications. The working principle is the same as an onshore version, but the design is adapted to the specific hook-up and conditions as experienced in an offshore environment.
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