Clair Oil Field

The giant Clair field is the UK’s largest hydrocarbon resource, with total volumes initially in place across the entire field currently estimated at more than 7 billion barrels of oil equivalent
Due to the highly complex and fractured nature of the reservoir, there has been considerable uncertainty as to how much of the oil could be recovered
The Clair field extends over an area of 220km2, in water depths of approximately 140m
Oil and gas is exported via pipelines to the Sullom Voe Oil Terminal on Shetland
Platform flow rates are 60,000 BPD oil, 100,000 BPD water and 40 MMSCFD gas lift compression
The platform topsides comprise three decks, which accommodate all the required facilities for drilling and processing of the produced fluids.
The platform jacket for Clair is a four-legged single steel structure of around 165 metres (540 feet) in height.
Gas is transported to Sullom Voe on the West Of Shetlands Gas Pipeline System

**Mustang Engineering:** Front end engineering, detail design and project management for the platform
**Aker Verdal:** Fabrication of the platform jacket
**Kvaerner:** Jacket and Piles
**AMEC:** Fabrication and integration of deck
**Saipem:** Installation of platform
**Stolt Offshore:** Construction and installation of the gas import/export system
**BiFab:** Skids/Compression Module

1977 - The Clair field was originally discovered
2001 - The first development phase (Clair Phase 1) was sanctioned
2002 - Major contracts awarded
2004 - Clair rig sets sail
2005 - Production from the Clair field commenced
2009 - Shell stake increases from 18.7% to 28% after acquiring stake from Hess
2011 - AMEC appointed to deliver the engineering and project management services (EPMS) for the main platform design for Clair Ridge
2019 - Chrysaor acquired Conocophillips's stake in the field
2021 - Premier Oil and Chrysaor merge to create Harbour Energy
2022 - MOU signed to collaborate in the electrification of oil fields West of Shetland

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