Project Profile
Value: Undisclosed
Location: 320 km northeast of Aberdeen in UK Ninth Round Block 9/18b, UK
Production: 55,000 bopd
Discovery Date: 1987
Start-up Year: 1993
Water Depth: 112 metres
The Gryphon Oil Field is located 320 km northeast of Aberdeen in UK Ninth Round Block 9/18b. The field was discovered by Well 9/18b-7 in 1987 and the production started in 1993. The field lies in 112 metres depth. Kerr-McGee had drilled 13 wells and 10 sidetracks on the field. In 1990 a 3D seismic survey was acquired over the whole trend, in Blocks 9/18a, 9/18b, 9/23a and 9/23b. The field is a complex combination structural/stratigraphic trap formed on the northerly plunging nose of the Crawford Ridge. The Gryphon \'A\' Floating Production Storage and Offtake (FPSO) facility has been on location in United Kingdom Continental Shelf (UKCS) block 9/18b since 23 September 1993, and on production since 14 October 1993. This first oil date was less than 10 months from UK government approval for the project, a record for a North Sea oil field development. Production to the FPSO is via a subsea well cluster 1 mile to the south west. Most of the producing wells will have horizontal completion intervals. Peak production of 55,000 BOPD was in 1994. Gryphon field is currently being operated by Maersk Oil, which has awarded TWMA a contract to handle and dispose of subsea structures and damaged equipment.
Operator:
Maersk Oil North Sea UK Limited: Operator with 100% interest
Contractors:
Bibby Offshore: Assist with construction and inspection, repair, and maintenance (IRM) activities
Global Energy Group: Fabrication of mid water arch systems, and of 5 off riser bases, 2 off SSIV structures, 1 off Clusters and 1 off water injection/ control structure
Harkand: Subsea inspection of FPSO contract
Petrofac: Provision of engineering services
Technip: Risers, umbilicals, flowlines and subsea equipment installation
TWMA Ltd.: Disposal of subsea structures
Viking SeaTech UK: Secured a long-term North Sea contract with the UK business of Maersk Oil. The agreement is for the supply of rig move equipment and storage services. It covers a fixed period of three years and also contains options for multiple extensions. As part of the arrangement Viking SeaTech will keep Maersk Oil’s equipment safe and secure at their premises so it is ready for use in combination with their own for each project stage. The company will support Maersk’s assets in the Dumbarton, Gryphon and Janice fields. The schedule includes the use of the Sedco 704 semi-submersible. (October 2015)
Sparrows Group: Contracted to deliver hydraulic, lifting and rigging services.