Mulighetsstudie for et havbunnssystem for separasjon og reinjeksjon av CO₂

Background and purpose of the project?
The project is a continuation of 226575 “Concept study for combining full-scale capture of CO₂ with storage and application to EOR for North Sea oil fields”. In this project, Aker Solutions (AKSO) has put together various technology components that enable a CO₂-EOR project to be expanded with seabed technology.

Key elements in this concept are the use of membranes to separate back-produced CO₂ and a seabed compressor to carry out pumping work. The technology concept is promising compared to pure CO₂ storage and AKSO and partners want to go further in qualifying the various technology components. This project addresses challenges related to seabed compression of CO₂-containing gas mixtures. More specifically, various alternatives for seabed compression and reinjection of CO₂ / HC gas mixtures will be studied.

Furthermore, assessments shall be carried out of:
– The usability of important equipment components in these alternatives
– Other important equipment components such as coolers, liquid separators, etc.
– Modeling the properties of the gas mixtures to quantify these properties and understand the uncertainty in such data and their significance on equipment design
Assessment of suitable materials, both metallic and “soft” materials in the process train

What is the goal of the project?
To clarify whether the simplified seabed processing concept is technically possible so that further work can be done on qualifying individual components.

To determine a process concept that provides minimal need for costly modifications and interventions in existing topside facilities.