Alwyn North

(TotalFinaElf)

Offshore oil field in production.

Block and licence number:

3/9a, P.090

Map reference:

Plate 6

Grid reference:

1° 44’ E 60° 45’ N

Licensees and company interest in block (%) at end of 2000:

TotalFinaElf Exploration UK PLC

33.33

Elf Exploration UK PLC

66.67

Date of discovery:

October 1975

Production start:

Oil: November 1987
NGL’s: November 1987
Gas: December 1987

Operator’s estimate of:

Recoverable reserves originally present:

Oil: (million tonnes) 36.82
NGLs: (million tonnes) 4.32
Gas: (billion cubic metres) 52.92

First year of peak production:

Oil: 1989
NGLs: 1989
Gas: 1989

Peak production:

Oil: (million tonnes per year) 4.36
NGLs: (million tonnes per year) 0.11
Gas: (billion cubic metres per year) 2.70 

Water depth:

126 m

Gravity:

40° API (Brent) to 47° API (Triassic)

Sulphur content:

0.5%

Transport system:

Oil and NGLs piped to Sullom Voe via Cormorant Alpha. Gas transported to St Fergus via the Frigg UK Association pipeline system.

Extension into other UK blocks:

Block number, licence number and licensee/ company interest in block (%) at end of 2000:

Part 3/4a, P.416

Remarks:

Reserves figures include Brent, Statfjord and Triassic reservoirs.