The Clair Field is the largest undeveloped hydrocarbon resource in the UKCS, with an estimated 7-8 bn boe HCIIP. The field is located some 75 km West of the Shetland Islands in some 150m water depth. The proximity to shore and the marine environment ensure that adherence to high HSE standards are a given. Whilst the water depth is not onerous in its own right, the exposed North Atlantic metocean conditions (wind, waves, current) make operations in this environment challenging.