Project Profile
Value: US$97.7 million (likely to rise by 20-24%)
Location: Block 12/21c is located in the UK Continental Shelf
Water Depth: 30m-40m
Estimated Reserves: 5.1 million barrels
Start-up Year: April 2009
Production End: 4Q 2014
The Jacky field - block 12/21c is located in the UK Continental Shelf, in water depths of 30m-40m, off the Moray Firth Caithness cliffs. The field was discovered in April 2007 and development was approved in November 2008. The Jacky Field is located 12 miles off the Scottish coast and has been producing light oil. Prior to completing the Agreement, NSE UK held a 10% interest in the Jacky Field, while its partners, Ithaca and Dyas, held 47.5% and 42.5% interests respectively. Ithaca is the Operator of the Jacky Field. The Agreement is subject to the approval of the Department of Energy and Climate Change (DECC). Reserves are put at 5.1 million barrels, giving the field a predicted economic life of up to 5.5 years.
Phase one consisted of installing a production well, using the Ensco 92 jack-up drilling rig, tied in through a normally unmanned and removable wellhead platform. The platform, which was installed using the Hermod lift barge, has been fixed to the seabed using removable suction piles. Phase one also includes an oil pipeline, a water injection pipeline and a power cable and control umbilical. In addition a small manifold has been installed to enable connections for two short pipelines to the Beatrice Bravo satellite platform for potential future use. Jacky started producing in early April 2009.
Phase two of the development entails drilling and completing a second production well and a water injection well. Both will be drilled via slots on the Jacky platform.
Decommissioning
As part of its full field life cycle management, Ithaca commissioned a study define the associated costs with decommissioning of the Jacky subsea field infrastructure including the Jacky NUI. Decommissioning costs will be paid according to each company’s field equities.
Operators:
Ithaca Energy: Operator with 52.5%
Dyas: 47.5% interest
North Sea Energy: Farmed out Feb 2014
Contractors:
Ensco: Drilling contractor using Ensco 92 jack-up drilling rig
HSM Offshore BV: Wellhead platform contract
Subsea 7: Tieback contract
Technip UK Limited: Pipelay contract
Wood Group: Duty holder
Petrex: Engineering studies to define decommissioning methodologies, schedules and costs in accordance with UK Offshore Operators Association (UKOOA) guidance documents. Petrex scope includes:
• Phase 2 comprises of FEED activities planned for implementation in Q2/Q3 2015.
• Phase 3 entails the pipeline conditioning in readiness for disconnection. (February, 2015)