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Rising to the challenge of rigless slot recovery

Vertical views of the recovery operation – showing a Claxton positive grip tension ring (right) securing the conductor during retrieval and a Claxton single drilling unit (left)

The integrated team led by Claxton delivered the full work scope in only three months, including designing, manufacturing and testing the bespoke equipment. The cooperation between Claxton; Boskalis; CUT UK, which supplied diamond wire; and the Maersk staff involved on Tyra East made it possible to deliver what was needed in a very tight timeframe: the project was completed ahead of schedule, despite the weather delay.

Alex Lucas, senior drilling engineer, Maersk drilling department, echoed the significance of the collaborative approach:

This was a very challenging piece of work requiring integrated planning across many departments and companies, not to mention the extensive amount of design, manufacturing and testing of equipment Claxton designed especially for the job in double-quick time.

Safety and deadlines were the main concerns for this operation and the rigless approach saved substantial rig time and reduced the associated costs while increasing the flexibility of the project timings. Building on the success at Tyra East, we are hoping to win similar work in the near future.

About slot recovery from Claxton…

Claxton performed the first-ever rigless platform well abandonment in the North Sea, since that project – which was completed in 2003 – we have continually invested in our tooling, equipment and people. Subsequently we’ve delivered slot recoveries for operators all around the world and our cutting and recovery tooling spread has been deployed on over 260 projects – reliably, successfully and safely.


Contact us and we will put you in touch with the person best placed in our team to answer based on your unique enquiry. Our engineers are specialists in their own fields and ready to take on any challenge!

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Download our decommissioning buyers guide to learn how we can provide solutions for both platform and subsea well abandonments and casing recoveries.

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Decommissioning Case Study Pack

The Claxton offshore decommissioning case study pack showcases our vast experience of delivering successful decommissioning projects.