Hallin vessel to assist North Sea Thistle overhaul
EnQuest has contracted Hallin Marine to support an inspection, repair, and maintenance project on the Thistle field in the UK northern North Sea.
The work will include full structural inspection activities at EnQuest’s Thistle Alpha platform, 275 mi (442 km) northeast of Aberdeen.
Hallin will provide its DP-2 multi-purpose support vesselStril Explorer. This is equipped with a modular air dive system, a daughter craft, a Quasar Compact work ROV and Lynx inspection-class ROV, and an interactive data acquisition and reporting system to complete the program.
Thistle Alpha platform is a 60-slot drilling and production platform built at the Graythorp Dry Dock in Teesside, northeast England. It was installed in 1976. Oil from the Thistle and Deveron reservoirs is recovered by platform wells and processed through a two-stage production separation system.
Further oil is imported from the Dons field via an 8-in. pipeline and commingled with Thistle’s production, for onward delivery to the Sullom Voe terminal in Shetland via a 16-in. pipeline into the Brent pipeline system.