Thistle update today19 Nov 2019 13:42
19 November 2019
Following a precautionary down-man of EnQuest’s Thistle platform in October, a dedicated project team has been assessing remediation options.
A subsea survey showed deterioration of a metal plate connecting a redundant storage tank to one of the platform’s legs. EnQuest has worked closely with the regulators and the Thistle decommissioning co-venture partners, BP and Chrysaor, and has agreed plans to remove both tanks.
Contracts for subsea and heavy lift operations are being progressed and the team are developing plans to start the removal operation in early 2020.
To further assist in returning Thistle to safe operations as quickly as possible, a small work party returned to the platform on Saturday for the second time since the shut-down to carry out further analysis and inspection activities. These offshore visits followed remote operated vehicle subsea surveys and the development of a robust safety case in consultation with the Health & Safety Executive.
Industry organisations have commended the safety-first approach taken on the evening of the precautionary down-man.
Steve Rae, Executive Director, Step Change in Safety, said: “I’m very pleased to have been informed by EnQuest’s leadership team that the company has begun making plans to remediate the structural problem which led to the down-manning of the Thistle Alpha. The operator is also in the process of conducting thorough on-site reconnaissance and inspection visits of the entire platform and its systems to assist them in preparing for the eventual re-manning of the installation.
“I would like to re-emphasise my commendation for Managing Director Bob Davenport and his team for the safe and expedient down-manning of the Thistle platform last month. EnQuest has assured me that the safety of the entire Thistle workforce has always been, and will continue to be, foremost in the company’s mind at all times.”
A spokesman for EnQuest said: “The redundant tanks had been scheduled for removal in the summer of 2020. Following the latest surveys, we are now accelerating that plan and, weather dependent, expect activity to start early in the New Year. We have a dedicated project team working with our stakeholders and the supply chain and we continue to keep regulators engaged on progress with the view to bringing Thistle back to safe operations as quickly as possible. We would like to thank our team and contractors for their continued support during this process.”
The Thistle platform is located 125 miles north-east of Shetland.
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EnQuest PLC