Carbon Capture and Storage is one of the major pathways to reduce carbon dioxide emission. CCS is the only feasible solution to decarbonize areas like steel and concrete production. These two areas contribute to 10-15% of all CO2 emissions. An important solution could be to utilize the Norwegian Continental Shelf, and other offshore areas, to store the CO2. Field developments with CO2 injection subsea wells will then be necessary. The CCS SURF solutions currently being applied are based on standard equipment used for Oil and Gas industry, but to be commercially viable, there must be considerable cost cut.

In a short and midterm perspective, cost cut can be achieved by reducing scope of work and altering operational practice.

In a mid- and long-term perspective, the oil- and gas-based regulations need to be challenged to achieve further cost cuts.

This presentation will address the challenges related to CO2 transportation:
-phase envelope
-impact of impurities
-consequences of failures

In short- and mid-term perspectives, this presentation will address alternative cost-effective technologies and solutions:

All electric system in combination with servicelineless system. Control umbilical and service line are made obsolete. The system and component solution will be described in some depth.

SPS/Pipeline/well interface solutions that could reduce hardware scope and installation time.

For the long-term perspective, the presentation will address further simplifications based on national/ international initiatives to establish specific guidelines for subsea equipment for CCS applications.