Valhall Oil Field

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Summary Information

  • Operator: BP
  • Country: Norway
  • Location: southern part of the North Sea
  • Production start: 1982
  • Partners: BP Norge AS 35.95 %, Hess Norge AS 64.05 %
  • Type: Oil & Gas
  • Estimated Reserves: Original
    • 146.7 million Sm³ oil
    • 27.2 billion Sm³ gas
    • 5.5 million tonnes NGL
  • Remaining
    • 41.8 million Sm³ oil
    • 6.8 billion Sm³ gas
    • 2.2 million tonnes NGL
  • Production Volume: 2012 Estimated
    • Oil: 33 000 barrels/day
    • Gas: 0.28 billion Sm³
    • NGL: 0.04 million tonnes.


  • The Valhall field, located some 30 km south of the Ekofisk Platform complex, was discovered in May 1975 and declared commercial two years later. The field was developed using four platforms. Three of these platforms were located at the Valhall field with the fourth 2/4G Riser platform located at the Ekofisk Centre. First oil was in October 1982.
  • Since 2013, the Valhall field complex now has six separate manned platforms: quarters; drilling; production; wellheads; water injection; and the new combined process and hotel platform. In addition it has two unmanned flank platforms, each approximately six kilometres from the main facilities.
  • The Hod Oil and Gas Field is also tied back to Valhall
  • The renewed facilities have the capacity to handle 120,000 barrels of oil and 143 million cubic feet of gas per day
  • The Valhall Flanks development included the addition of two normally unmanned platforms, one in the North and one in the South of the existing Valhall field. The production from each of these platforms is routed through two separate pipelines and processed at the Valhall complex. Each platform contains 16 well slots.


  • Heerema Marine Contractors:
    • Valhall 2/4G and Production Platform
    • Hod platform
    • Living Quarters
  • Kvaerner:
    • Valhall A - Drilling Deck
    • Drilling Jacket and Piles,
    • Valhall Re-Development - Jacket and Piles
  • Emtunga: Switchgear, Office & workshop modules & Valhall A - Laboratory module
  • Heerema Tønsberg: Engineering, procurement, construction and installation (EPCI) of one wellhead platform
  • Wood Group & Fabricom: design, procurement and project management services
  • Saipem:
    • Jacket Repair and Topside Installation
    • Water Injection Platform Jacket & Installation
    • Re-development Project - production platform T&I
  • IK Stavanger: Valhall QP Leg Infill
  • Aker Solutions: Water Injection - System engineering of SRU package. Design of SRU pre-treatment unit, Ultrafiltration and/or Multimedia filtration with automated backwash system
  • BiFab: Fabrication of Skid Units / PAUs & Solids Handling Module
  • KWSubsea: Conceptual feasibility study for a 4" replacement gas lift pipeline system between Valhall Flanks and the Hod Platform


  • 1975 - Valhall Oil Field discovered
  • 1982 - First oil produced
  • 1996 - A wellhead facility, Valhall WP, with 19 slots for additional wells was installed
  • 2001 - Plan For Development and Operations of Valhall Flanks Submitted
  • 2001 - Heerema Tønsberg awarded contract for the engineering, procurement, construction and installation (EPCI) of one wellhead platform
  • 2005 - Wood Group & Fabricom awarded design, procurement and project management services
  • 2009 - Hess acquired Shell's stake
  • 2013 - Production starts from the renewed facilities


  • The Valhall field produces from chalk in the Tor and Hod Formations of Late Cretaceous age. The reservoir depth is approximately 2 400 metres. The chalk in the Tor Formation is fine-grained and soft, with considerable fracturing allowing oil and water to flow more easily than in the Hod formation.


  1. Valhall, NPD
  2. Saipem Europe Fixed Offshore Production Facilities Project R
  3. Aker Solutions Oil And Gas Processing References
  4. Bifab Platform References
  5. FoundOcean Europe Subsea References
  6. KWSubsea Subsea References
  7. Emtunga Offshore Platform References
  8. Kvaerner Topsides References
  9. Kvaerner Platform References
  10. Contract for Valhal Flank Development
  11. Plan For Development and Operations of Valhall Flanks Submitted
  12. Wood Group & Fabricom Awarded BP's Valhall Redevelopment
  13. Shell in strategic asset swap with Hess
  14. BP Starts Production from New Valhall Platform in Norwegian North Sea

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