The Snorre Expansion Project in the Tampen Area will connect up to 24 wells in 6 new subsea drill centers. Connections are made through 21km of the largest bundle systems ever built, maximal in length, setting a record for diameter as well as weight. The flowlines in the bundles require no trenching or rockdump protection. This was an important factor to bring the project development cost and the project CO2 emissions down. The bundle structures were designed to be tolerably mobile on very soft clays, a soil type typical for the Norwegian Trench. This removed the need for rock foundation. The compact footprint of the bundle lay out enables the use of an innovative spool cassette installation method, positioning all spools and controls for a drill centre in a single lift.

The bundles are installed using the controlled depth towing method. A significant advantage for the project because it did not compete for the availability of specialist pipelay vessels. The minimal installation time in the field allows flexibility for the extensive drilling campaign. The bundles house all field flowlines, service and control lines. The four flowlines are PIP, providing much better no-touch time than initially planned. The bundles control system is electrically actuated. WI lines are PE lined, using Linerbridge® technology, an industry first. And additional power and fibre optic cables are installed in the bundles to make them ready for the implementation of Underwater Intervention Drones in the Snorre field.