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Viking LD

Viking LD is an unmanned fixed wellhead platform in the Viking gas field in the UK Southern North Sea, installed circa 1999 to access satellite reservoirs in Block 49/17. It forms part of the Viking B complex, historically tied into the broader Viking export network. The platform hosts multiple well slots and connects to infrastructure for offshore gathering and export.

Operator: Chrysaor Production UK Ltd

Status: Operational

Viking LD platform photo

Image Source: Chrysaor Production UK Ltd. (All rights belong to the original owner.)

Production: Gas

Operations start: 1999

Water depth: 24 m

Country: UK

Block: 49/17

Type: Fixed steel jacket

Field

The Viking gas field consists of multiple accumulations in Blocks 49/12, 49/16 and 49/17. It is a Rotliegend sandstone gas reservoir discovered in 1965 with production from the early 1970s; satellites like LD were added later to access additional reserves and support sustained field output into the Viking export system.

Facilities

Viking LD's installation comprises a fixed jacket with topside wellheads, Xmas trees and manifold interfaces. It has minimal processing; produced gas historically flowed via infield pipelines to the Viking B host platform and onward through the Viking export system to the Theddlethorpe Gas Terminal. Utility systems include remotely operated safety shutdown valves, instrument power circuits, and chemical injection systems for hydrate and corrosion control. The platform is unmanned, remotely monitored and controlled, with periodic maintenance access. Flow assurance is supported by pigging facilities and corrosion mitigation. Structural and safety systems meet UKCS standards. With field decline and system cessation, Viking installations are in decommissioning or removal phases.

Viking LD layout
Image Source: Chrysaor Production UK Ltd. (All rights belong to the original owner.)

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