Mariner Oil Field

Summary Information

• Operator: Equinor
• Country: UK
• Location: East Shetland Platform of the UK North Sea
• Production start: Expected 2017
• Partners: Equinor (65.11%), NEO (20%), Siccar Point (8.89%) and ONE-Dyas (6%)
• Type: Oil
• Estimated Reserves:
• Production Volume:

Description

• The field was developed with a production, drilling and quarters (PDQ) platform, based on a steel jacket, with 50 active well slots, and a floating storage unit (FSU) of 850,000 bbls capacity. In addition a jack-up rig will be used for the first 4 - 5 years.
• The field is estimated to produce for 30 years, with average production of around 55,000 barrels of oil per day over the plateau period
• The Cadet field is located within UK Continental Shelf (UKCS) Block 8115a, approximately l34kilometres (km) from the Shetland lsles coastline, in a water depth of approximately 105 metres (m). Equinor will develop the field using three production wells and one water injector well, all drilled from the existing Mariner A platform

Contractors

• Aker Solutions:
  • The topside FEED (front-end engineering and design)
  • Delivery of a drilling equipment package for the production platform
  • Engineering, construction and commissioning services for the hook-up phase
• Dragados Offshore: Engineering, procurement and construction (EPC) of the steel jacket
• Daewoo Shipbuilding & Marine Engineering: Contract award for the topside
• CB&I: Detailed engineering design services for the Mariner Topsides
• Odfjell Drilling: Drilling services, maintenance of the drilling facility and drill pipe logistics
• Noble: Drilling services
• EMAS AMC: Transport and floater installation contract
• ABB: Internal and external telecommunication systems
• Schlumberger: Drilling, completion, electrical submersible pumps (ESPs), cement and fluids

History

• 1981 - The Mariner field was discovered
• 2007 - Statoil entered the license as operator
• 2011 - Aker awarded topside FEED
• 2012 - JX Nippon acquires a stake from ENI
• 2012 - Statoil makes investment decision for the project
• 2013 - Approval granted for development
• 2013 - CB&I awarded Topsides detailed engineering contract
• 2013 - DECC approves Mariner field development plan
• 2019 - The field came on stream
• 2019 - Approval granted for Cadet
• 2022 - NEO acquired a stake from JX Nippon
• 2022 - Ithaca became a partner after acquiring Siccar Point Energy

Geology

• The Mariner Field consists of two shallow reservoirs, the Maureen Formation and the Heimdal Sandstones of the Lista Formation, with nearly 2 billion barrels of oil in place and expected reserves of more than 250 million barrels of oil. Both formations yield heavy oil of around 12 to 14 API.

Links

1. UK Oil and Gas Fields by Approval Date
2. Hydro acquires interests in UK heavy oil fields
3. Aker Solutions to conduct FEED study for Statoil's Mariner field
4. Major asset acquisition in the UKCS
5. Statoil makes investment decision for the Mariner project
6. CB&I Announces Offshore Award
7. Mariner field opens new chapter in UK oil and gas development
8. Odfjell Drilling to provide platform drilling on Mariner
9. Loan for Acquisition of Interests and Development of Oil Fields in British North Sea
10. Noble Corporation has been awarded the drilling services for Mariner project
11. Aker Solutions to deliver drilling equipment package for Mariner platform
12. Ezra’s Subsea Services division awarded US$126 million floater installation contract from Statoil
13. Statoil on track with Mariner field development project
14. ABB wins $60 million telecom contracts for Statoil platforms
15. Statoil awards Mariner contracts to UK suppliers
16. Aker Solutions Wins Hook-Up and Commissioning Contract for Mariner Development
17. Statoil awards Mariner drilling and well services contract to Schlumberger Oilfield UK
18. Mariner on stream
19. Acquisition of JX Nippon Exploration and Production (U.K.) Limited
20. Completion of Acquisition of Siccar Point Energy