Chevron to award FEED for Rosebank FPSO
The Rosebank oil and gas field discovery is located on Blocks 213/26 and 213/27, in the Faroe-Shetland Channel, 130 km northwest of the Shetland Islands in 1,115 m of water depth on the Corona Ridge near the UK border.
- Chevron 40% is also acting as the operator
- Statoil from Norway 30%
- OMV from Austria 20%
- Dong Energy from Denmark, the remaining 10%.
The Rosebank oil and gas field was discovered in August 2004, then in 2007, Chevron and its Rosebank partners completed a $327 million capital expenditure program to appraise the Rosebank oil and gas discovery.
Then Chevron, as operator, completed the Rosebank oil and gas field development plan in 2011, with first production expected to hit a plateau rate of
- 75,000 b/d of oil
- 100,000 million cf/d of gas
The Rosebank oil and gas field development is estimated between $6 and $ 8 billion capital expenditure.
To support this development Chevron and its partners Statoil, OMV and Dong Energy have decided to combine the operation of a semi-submersible drilling rig with a Floating, Production Storage and Offloading vessel (FPSO).
In 2011, WorleyParsons from Australia had been awarded a pre-Front End Engineering and Design (pre-FEED) contract for the FPSO.
According to this pre-FEED work, the:
- FPSO should have between 800,000 and 1.3 million barrels of crude oil storage capacity
- Crude oil should be offloaded to shuttle tankers
- Gas should be processed and piped to the 130 km Shettland Islands
Seadrill, Fred Olsen, Transocean, Stena and Odfjell in competition for new-built semi-submersible drilling rig
Chevron called on drilling contractors in late January to respond to a formal multi-year charter tender expected to be released later this year.
Since the deep-water floater is intended for use in the UK’s West of Shetland region and in Newfoundland’s sub-Arctic waters, Chevron is looking for a semi-submersible drilling rig structure.
This semi-submersible drilling rig unit should be preferred according to Moss Maritime CS50 or CS60 and GVA 7500 designs to operate in the harsh environment of the North Sea in at least 7500 feet of water.
Seadrill and Fred Olsen are offering to charter Moss Maritime CS60 drilling rig types already in progress:
- Seadrill has the West Mistra and West Rigel semi-submersible drilling rig in progress in Hyundai Samho Shipyard with delivery times in 2014 and 2015 for a capital expenditure of $ 650 million per unit.
- Fred Olsen has a semi-submersible drilling rig also in progress in Hyundai expected in 2015 for a capital expenditure of $ 700 million.
In parallel Odfjell is in talk with Daewoo Shipbuilding & Marine Engineering (DSME)
The charter contract is estimated between $450,000 and $500,000 per day.
In the event the contract is awarded in the second half of this year, industry sources expect the new-built semi-submersible drilling rig will be delivered in 2014 at the earliest.
According to the actual planning, Chevron and its partners, Statoil, OMV and Dong Energy are expected to award the FEED next quarter and the semi-submersible drilling rig by the end of 2012 in order to make a final investment decision (FID) on early 2013, so that the drilling campaign could start in 2015 for Rosebank FPSO oil and gas production in 2017.