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Elgin-Franklin Offshore Field, North Sea

Location

Blocks 22/30b, 22/30 and 29/5b

Water Depth

305ft (93m)

Field Discovered

Elgin - 1991, Franklin - 1986

First Production

Elgin - April 2000, Franklin - October 2000

Gas Ultimate Recovery

Elgin - 889 billion standard cubic feet (25.2 billion cubic metres), Franklin - 821 billion standard cubic feet (23.3 billion cubic metres)

Condensate Ultimate Recovery

Elgin - 244 million barrels (38.7 million cubic metres), Franklin - 123 million barrels (19.5 million cubic metres)

Estimated Recovery Factor

Gas - 58%, Condensate - 52%

Production Facilities

Gas condensate separated into liquid hydrocarbons and commercial-quality gas, condensate exported via pipeline to Kinneil via Cruden Bay, commercial gas exported via seal pipeline to Bacton terminal

Platform Type

Pile founded, jack up

Hull Weight

10,700t

Topsides

13,400t

Legs / Piles

10,900t

Total

35,000t

Triangle

338ft (103m) per side

Accommodation

68 beds

Normal Manning

48 (when not set-icing wells)

Freefall Lifeboats

3 x 45-man capacity

Platform Type

Steel jacket, four legs

Jacket Weight

Elgin - 2,715t at lift<br />Franklin - 2,800t at lift

Topsides

Elgin - 1,743t (provisional)<br />Franklin - 2,093t (provisional)

Deck Dimensions

Elgin - 63.66ft x 111.5ft (25.5m x 34m)<br />Franklin - 63.66ft x 150.92ft (25.5m x 46m)

Drilling

Elgin - 2 platform slots<br />Franklin - 9 platform slots

Freefall Lifeboats

1 x 20-man capacity<br />1 x 15-man capacity<br />1 x 10-man capacity

Condensate Export

24in x 24 miles (61cm x 38km) spur lines Marnock to unity pipeline close to Marnock<br />Joint liquids export with Shearwater

Gas Export

4in x 292 miles (86cm x 468km) SEAL line to Bacton<br />Joint gas export

Interfield Line

Two 12in x 4 miles (30cm x 5.5km) lines exponing well fluid from Franklin to Elgin PUQ<br />Two service umbilicals from Elgin PUQ to Franklin<br />One power cable / fibre-optic cable
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