Update on UKCS Field Development Projects - Intsok

Field **Carna
Area Southern North Sea
Operator Centrica
Development concept Subsea?
Transport concept 11 km pipeline to Kilmar or 30 km pipeline to Trent?
Start-up 2012
Comments: Project sanction for Carna, which was discovered by Venture in 2009 before it
was taken over by Centrica, is looked for in late 2010/early 2011 and start-up in 2012. The
base case for development is two subsea wells, though a platform has not been ruled out. No
decision has yet been taken on the host – both ATP’s Kilmar and Perenco’s Trent are under
consideration. Other prospects have been identified in the area which are likely to be drilled.
Field
Causeway
Area Northern North Sea
Operator Antrim
Development concept Subsea
Transport concept 9km pipeline to Dunlin
Start-up 2011/12
Comments: The lengthy delay in the development of the Causeway oil field should come to an
end with an agreement whereby Antrim will transfer part of its stake and the operatorship to
partner Valiant. Valiant’s first task will be to review and optimise the modified field development
plan and submit it to DECC. The new plan will incorporate significant time and cost savings,
mainly resulting from a tie-in into existing subsea infrastructure rather than directly back to
Dunlin. The project is also expected to benefit from measures in the 2009 budget. But whether
start-up is still achievable in 2011, as previously planned, is unclear. The $113m first phase
involves the development of the eastern part of the field with one subsea producer and one
water injector – these will be based on existing wells. A second producer will be added after a
year. Overall reserves are estimated at 21.6m bbl, of which 8m will be produced in the first
phase. The 2006 discovery well and five appraisal wells have all been suspended. Antrim
contracted Senergy to assist with preparation of the plan and CSL to perform subsea project
management and assist with selection of the host facility.
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