STATS Group, have developed a Flangeless Subsea Launcher (FSL) which can be positioned at any given position in depths of up to 2,220 metres.
The STATS designed FSL can be efficiently lowered to the seabed and introduced to an open pipe end without hyperbaric welding.
Once the ROV operated FSL is lowered to the seabed at location and introduced to the open pipe end, a manipulator clamp mounted at the front of the launcher is positioned and secured onto the pipe, and retracted towards the launcher pulling the launcher centrally on to the open end of pipe until fully installed.
The launcher housing incorporates the lock and seal module which when actuated provides a secure connection to, and seal against, the outside diameter of the pipe.
The STATS have recently supplied a FSL with a total of six 32” Remote Tecno Plug™ isolation tools. Once the Remote Tecno Plug™ is deployed into the pipeline the FSL can be removed from the pipeline and recovered to the surface. STATS can then provide a Pipeline Retrieval Tool (PRT) which grips and seals on the internal diameter of the pipe and provides a recovery method to pull the pipeline to the surface.
