The Heather installation is designed to accept production fluids from Heather field and Broom field via subsea tieback. The production fluids are processed and separated into oil, gas and water. The processed oil is exported to the Sullom Voe Terminal via Ninian Central platform, while the gas is routed through compression trains for lift gas purpose. Produced water is separated, treated and discharged overboard and sea-water is injected into both Broom and Heather fields to optimise production. Import gas is provided via the Western Leg gas pipeline to meet the fuel gas deficiencies on the platform.