Subsea Trees (commonly referred to as Christmas Trees) cap the well, provide an off/on safety device and control gas production rates.
Photo showing technicians on the pipeline installation vessel cutting the pipeline tensioner
The Tamar Platform installation began with the jacket launch. The Tamar jacket barge tilted, allowing the jacket to slide off the barge and float in the water. The jacket’s flood control panel valves were then opened, allowing the structure to flood. The heavy lift installation vessel was then able to assist in the upending the jacket into its final vertical position.