Wellhead retrieval system speeds subsea abandonment

A tension cut and pull subsea wellhead retrieval system has reduced the time required to abandon subsea wells, according to the service provider Baker Oil Tools.For instance, James A. Sonnier, Baker Oil Tools marketing manager for subsea tools, estimates TotalFinaElf E&P USA Inc. with the subsea wellhead retrieval system saved 10-12 hr of rig time on a recent plug and abandonment job in more than 4,000 ft of water in the East Breaks area of the Gulf of Mexico.The job, carried out from the Glomar Celtic Sea semisubmersible drilling rig, cut 133/8-in casing, pulled the hanger, set a hydraulic spear, and recovered the casing in one trip. In a second trip, the job included engaging the wellhe...

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