STATS Group Dramatically Increases Safety Over Traditional Line Stop Methods with BISEP~(TM) and Tecno Plug~(TM) Technology

摘要

TAQA Bratani Ltd required an isolation solution to facilitate pipework replacement of a 3" instrument air line on board the Tern Alpha Platform in the North Sea, without the necessity for a platform shutdown. STATS Group proposed the use of a 3" BISEP~(TM) and Tecno Plug~(TM) assembly to provide a double block and bleed (DB&B) isolation. To allow deployment of the BISEP~(TM), full bore access was obtained by hot tapping into the live line by using a STATS supplied mechanical tie-in clamp and ball valve. Once hot tapping operations were complete and the pipe coupon recovered into the hot tap machine, the ball valve was closed allowing the hot tap machine to be removed. The BISEP~(TM) was then fitted to the ball valve and housed in a pressure competent launcher.