Project Profile
Value: US$250 million
Location: Blocks 22/6c, 22/6s North, 6.5km North East of Forties Alpha, Central North Sea
Water Depth: 128m
Area: 28 sq km
Discovery Year: July 2005 (well 22/6a-14)
Start-up Year: April 2012
Project life: >10 years
The field contains an estimated 35 million barrels of oil and 11 billion scf of gas.
The field will be developed using three horizontal subsea wells, which will be tied back to the Forties Alpha platform via a 37.5-in pipeline bundle. The 6.7km bundle will include two 6-in production pipelines, one 4-in gas lift pipeline, one 6-in produced water injection pipeline and controls system lines.
There may be additional wells added to the subsea cluster design, in order to maximize recovery from the field.
Initial reservoir conditions are close to, but below, HPHT classification. The oil is similar to Forties crude and Bacchus production will be commingled with Forties well fluids and exported via the Forties pipeline system. The Bacchus gas will be used for power generation and gaslift on the Forties platforms.
The Bacchus field was discovered in May 2005 in well 22/6a-14, which encountered 9.5 metres of oil in a good quality Fulmar sandstone formation.
Bacchus was developed subsea at a cost of US$22 million per well.
Operators:
Apache: Operator with 50% interest
Endeavour Energy: 30% Interest
Zennor Petroleum CNS: 20% interest
Contractors:
Aquaterra Energy
Flexlife: Project management
GE Oil & Gas: Subsea production system
Subsea 7: Pipeline bundle
Sub Contractor:
Tata Steel: Line pipe for Subsea 7