Our client operates the F2-A Hanze platform in the Netherlands, which is located around 200 kilometres north of Den Helder in the Dutch part of the North Sea. The platform is connected via a 4-inch flexible gas pipeline to the A6-F3B gas pipeline, while a control umbilical has been piggybacked to the flexible pipeline. This pipeline needed to be replaced, but an additional challenge was that the existing control umbilical needed to remain in place.
We were asked to install the new 4-inch flexible gas export pipeline in water 42 metres deep. The project was executed from the DP2 DSV Stril Server, which was fitted out by Bluestream with a full suite of air diving, ROV and flexible lay equipment.
The scope included: