Subsea flowlines have been heated every second week to melt possible wax formations. Routines have been changed to run heat tracing every second month as opposed to every second week, although heating is ran for slightly longer.

Process to get there: Study to confirm that the updated interval still ensures sufficient heating of the flowlines.

Results (environmental and financial): Reduced CO₂ emissions by 222 tons per year, corresponding to a saving of 110 000 NOK in CO₂ taxes.

The measure's technical lifetime: The lifetime of the field

Statoil has implemented the improvement opportunity on Norne.