The scope Our client was developing a prospect adjacent to one of their existing Southern North Sea gas elds. The eld development involved a new subsea tieback to the existing platform via a 9 km long 8” pipeline and piggybacked umbilical. Our client asked us to complete the detailed design of the new subsea tieback. The solution After completing the initial FEED design, we designed a rigid 8” trenched pipeline solution tied-in with two rigid expansion spools to an existing platform riser. The pipeline was piggybacked with a 110mm wellhead control umbilical and we ensured the design was optimised for a two-phased installation process. We also simultaneously carried out and integrated a sister detailed design project for the umbilical J- tube, allowing for integrated fabrication and insta

Join for free to read