Graben Area Export Line Characteritics

Northern Spurline

 

Location

From ETAP to INEOS's Unity Platform

Description

The 24-inch diameter 75 kilometre (km) long Northern Spurline runs from the base of the ETAP export riser via a wye (the connection of the Southern Spurline) located 3 km from ETAP to the base of a riser on the INEOS FPS Unity platform.

Owners

  • INEOS – 54.303767%
  • Eni - 5.256079%
  • BG - 2.928461%
  • Dyas - 0.750000%
  • EFOG - 9.582980%
  • ExxonMobil - 13.020026%
  • Summit Exploration – 0.750000%
  • E.ON - 1.079235%
  • Shell - 11.520026%
  • ChevronTexaco - 0.809426%

Export Routes

Export from the Northern Spurline to Forties Pipeline System (FPS)  and then oil tanker loading of Forties Blend at Hound Point (Firth of Forth) and raw gas delivery at Kinneil.

Maximum Capacity

Capacity will vary depending on the properties of the commingled liquids and the relative proportions of liquids flowing from ETAP and from the Southern Spurline. The approximate capacity of the Northern Spurline with 220 mbpd of fluids entering at ETAP is 500 mbpd. If the ETAP rate is reduced below 220 mbpd and the Southern spurline rate is increased above 280 mbpd, the capacity of the Northern spurline will be reduced to below 500 mbpd.

Southern Spurline

Location

From Elgin/Franklin and Shearwater to the Northern Spurline

Description

The 24-inch diameter 38km long Southern Spurline runs from a SubSea Isolation Valve assembly (SSIV) 250m from the Elgin Platform via a wye (the Southern Spurline wye assembly) located 2km from the SSIV to the wye on the Northern Spurline. A further wye (the Shearwater wye) is located adjacent to the Southern Spurline wye assembly and gives a connection to the Shearwater platform 8km away. The Shearwater wye has a spare leg available to future connections.

Owners

  • INEOS - 30.500000%
  • Eni - 15.197565%
  • BG - 9.806450%
  • Dyas - 1.520313%
  • EFOG - 32.090235%
  • ExxonMobil - 3.040625%
  • Summit Exploration - 1.520313%
  • E.ON - 3.614000%
  • ChevronTexaco - 2.710500%

Export Routes

Export from the Southern Spurline to the Northern Spurline and then to FPS  and Oil tanker loading of Forties Blend at Hound Point (Firth of Forth) and raw gas delivery at Kinneil.

Maximum Capacity

Capacity will vary depending on the properties of the commingled liquids and the relative proportions of liquids flowing from ETAP and from various entry points on the Southern Spurline. The approximate capacity of the Southern Spurline with 220 mbpd of fluids entering at ETAP is 280 mbpd. If the ETAP rate is reduced below 220 mbpd, the capacity of the Southern spurline will be increased to above 280 mbpd.