Heimdal's facilities historically comprised a main processing platform and a connected riser platform, both steel jacket structures supporting modules for gas separation, dehydration, compression and export routing. The riser platform served as an interface point for major gas pipelines feeding into the Statpipe network and the Vesterled pipeline to St. Fergus. Utilities included power generation, produced water handling, control systems and safety installations. Heimdal managed gas flows from its own wells and satellite tie-ins, conditioning and redirecting flows to onshore terminals and export pipelines. Robust topside and subsea architectures ensured stable long-term operation in ~120-m water depth, though field facilities are now in decommissioning stages with removal planned by the late 2020s.