Project Profile
Location: Block 30/6 and 30/9, about 130 km northwest of Bergen, Norway
Estimated oil reserves: 12-18 million barrels of recoverable oil equivalent
Start-up Year: 1 December 1988 (2Q 2018 - Oseberg Vestflanken 2)
The Oseberg Field Centre includes three platforms, Oseberg A, B and D, connected to one another with bridges, in the southern part of the Oseberg field, and the Oseberg C platform, which lies 14 kilometres north of the field centre. Oseberg A is a concrete base platform with process equipment and living quarters, while Oseberg B sits atop a steel jacket and has drilling, production and injection equipment. Oseberg D is a steel platform with gas processing and export equipment. It was connected to the Field Centre with a bridge in 1999. Oseberg C is an integrated drilling, accommodation and production platform with a steel jacket. Gas export started from the Oseberg Field Centre on October 1st, 2000. This represented the beginning of a new era for the Oseberg field and for Hydro as an offshore operator.
In December 2015, Statoil and its partners submitted a Plan for Development and Operation (PDO) for Oseberg Vestflanken 2 in the North Sea. The new development consists of an unmanned wellhead facility which will both recover oil and gas from new deposits and improve the recovery rate from other producing deposits. The development cost is projected at US$940 million or NOK 8.2 billion, and makes it possible to recover 17.6 million standard cubic metres of oil equivalents (approx. 110 million barrels o.e). Oil accounts for nearly 10 million cubic metres (63 million barrels) of the reserves; the rest is gas. The reservoirs are located between 2400 and 3100 metres below the sea surface. The Oseberg Vestflanken 2 will be developed with a simplified, unmanned wellhead facility with ten well slots. Two of these will be used to inject gas to improve oil recovery. Production start-up is scheduled for the second quarter of 2018.
Operators:
Statoil: Operator with 49.30% interest
- Statoil ordered TechInvent’s FluidCom system (a chemical injection valve and metering controller). It employs a unique combination of material and thermal effects to improve the chemical injection process on the new unmanned wellhead platform for the Oseberg Vestflanken 2. (13/05/2016)
Petoro: 33.60% interest
Total E&P Norge: 14.7% interest
ConocoPhillips Skandinavia: 2.4% interest
Contractors:
Aibel: EPCI contract and maintenance and modification services. Also a hook-up contract of new living quarters to the Oseberg C platform scheduled for 2Q 2016. Aibel also won the contract to conduct a FEED study for the Oseberg Future Development Brownfield Topside project. The contract gives an opening for the subsequent EPCI contract. Work on the FEED study starts immediately, and will continue until October. An eventual EPCI contract (engineering services, procurement, construction and installation) will commence around the turn of the year and continue until the end of 2017.
Aker Solutions: Well services
Baker Hughes: Provide integrated drilling services
Bilfinger Industrier Norge: Provide insulation, scaffolding and surface treatment (painting) services
Consortium to construct and operate to two category J rigs:
Samsung Heavy Industries
KCA Deutag Drilling
COSL Drilling Europe AS: Drilling contractor
Deep Casing Tools: a contract for 7” Turbocaser Express tools to support the Oseberg East development
FMC Technologies: Provide subsea equipment
Magseis: Deploy ocean-bottom seismic (OBS) cables
Nexans: Static and dynamic umbilicals for three fasttrack projects
Subsea 7: Pipelay and subsea installation contract
Transocean: Drilling contractor
Prosafe: Contract with Statoil Petroleum AS for the provision of the Safe Scandinavia semi-submersible accommodation vessel temporarily converted for tender support vessel operations at the Oseberg Øst installation on the Norwegian continental shelf
Kvaerner: Concept study related to a standardised, unmanned dry tree wellhead platform for the Oseberg Future Development project, focused on minimisation of facilities, equipment and costs down to water depths of 150 metres and may be a cost effective solution compared to a conventional subsea tie-back solution.
Songa Offshore: Drilling contract using the Songa Delta rig
Prezioso Linjebygg AS and Bilfinger Industrier: Long-term contracts for insulation, scaffolding and surface treatment services. (January 2016)
Technip: Contract for pipe laying at Johan Sverdrup and Oseberg Vestflanken 2. The combined contract value is approx. NOK 400 million (US$4.6 million). (February 2016)
Also Technip has secured a contract by Statoil ASA to supply the umbilical to the Oseberg Vestflanken 2 field offshore Norway. The contract covers project management, engineering and the manufacture of over 5.5 miles of static steel tube umbilical. The umbilical includes a large bore integrated service line and multiple power cables. Technip Umbilicals’ facility in Newcastle, UK, will manufacture the project, which is scheduled to be completed during the first half of 2017. (May 2016)
Ocean Installer: Contract for marine construction and installation at Oseberg Vestflanken 2, Johan Sverdrup and Gina Krog. The combined contract value is approx. NOK 200 million (US$2.3 million). (February 2016)
Hereema Fabrication Group: Contract for engineering, procurement and construction (EPC) of the unmanned wellhead platform at Oseberg Vestflanken 2. Hereema Marine Construction will be responsible for transport and installation of the platform. The combined contract value is approx. NOK 800 million (US$9.2 million). (February 2016)
Aibel: Contract for engineering, procurement, construction and installation (EPCI) on the Oseberg Field Centre, to prepare the platform for receiving the well stream from Oseberg Vestflanken 2. This contract has a value of approx. NOK 200 million (US$2.3 million). (February 2016)
Wood Group Kenny: Contracted for the detailed design for two pipelines with corresponding spools and an umbilical, which will form part of the tieback from the future unmanned wellhead (UWP) platform to the Oseberg field centre. (April 2016)
4Subsea: Contract extension of a framework agreement with Statoil covering 10 installations on the NCS. The contract started in 2012 with extension from June 2016 until June 2018. 4Subsea\'s scope of work has increased with one additional installation and will be covering the following Statoil installations on the Norwegian Continental Shelf: Statfjord C, Snorre A, Snorre B, Gullfaks A, Veslefrikk, Volve, Visund, Oseberg A, Troll B, Troll C and Norne. The contract also includes support to develop inspection and maintenance programs, failure investigations, systems for annulus vent gas monitoring AMOSTM, and repair solutions. (June 2016)
ALTUS Intervention (a subsidiary of Qinterra AS): The 10-year long agreement involves provision of mechanical wireline and fishing services, as well as cased hole logging and tractor conveyance as optional services. (July, 2016)
Subcontractors
Aqualis Offshore: Aqualis Offshore has been contracted to provide human factor analysis and risk management of Aibel’s work on the the Oseberg Vestflanken 2 project. (March, 2017)