U.K. Block 30-03a

Landmark: U.K.'s First New Trans-boundary Developments since the Agreement between British and Norwegian Governments 

Project Overview

• Contract Award: 2005
• Sales: Aberdeen, U.K. 
• Fabrication: Dunfermline, U.K.
• Service Base: Aberdeen, U.K.
• Host Type: Platform
• Contract Type: Frame Agreement 

Project Characteristics

• No. Trees: 3
• Water Depth: 100-140 m (328-460 ft)
• Tree Type: EHXT
• Tree Pressure: 10,000 psi
• Tree Bore Size: 5"
• Hydrocarbon: Oil

Project Ownership

• Talisman 25.0%
• MOC 14.0%
• ENI 13.9%
• Bow Valley 12.5%
• ROC 12.5%
• Paladin 11.7%
• Talisman Norge 6.3%
• ENI ULX 4.1% 

Scope of Work

• Three (3) enhanced horizontal 5" x 2" 10,000 psi subsea tree
• Three (3) concentric all metal-to-metal sealing tubing hanger
• Alloy steel block with Inconel 625-clad metal sealing wireline plug
• Gas lift and Production chokes
• Tubing Hanger Independent Secondary Lock (THISL)
• Flowbase, 10K, with Torus II multibore hub
• Workover control system
• ROV interface/override
• Tool Rental
• Diverless workover
• Integral, rig deployed, structure approved by the Scottish Fishing Federation as a fishing-friendly protection structure     

Comments

Blane lies partly on the UK Continental Shelf (UKCS) and the Norwegian Continental Shelf (NCS). Blane was discovered in 1992 by well N1/2-1. The structure was successfully appraised in the same year by a well in the UK sector, 30/3a-1. Perceived trans-boundary complications and commercial difficulties prevented development. Production is scheduled to start in late 2006.

The field will be developed by 3 subsea wells, drilled in UKCS Block 30/3a, two of which will produce oil and associated gas, whilst one will be a water injector. The wells will be services by new subsea infrastructure connected to the BP operated Ula platform located 34km North-East of Blane in Norwegian Block 7/12. At Ula the well stream will be processed for further transportation in existing export infrastructure.