Hot Tapping and Plugging Through Valves

Emergency Repair
North Sea, Norwegian Continental shelf
Project manager
Roald Kolsnes
Project type
Emergency repair

Project description

The owner of a late-life asset needed to change outlet valves in a concrete structural support tank. Based on the solutions and technical know-how, IK Topside performed a FEED study and was awarded the contract for EPC and installation offshore. 


The following keywords describe the steps taken to perform the work safely and effectively:  

  • Installed new ball valve and adapters to create a safe hot tap barrier   
  • Hot-tapped blind flange/butterfly valve disc and removed the coupons via the installed Ball valve   
  • Installed and activated a double barrier extended plug to isolate the tank   
  • Replaced valve while keeping the extended plug activated