Method and apparatus for recovery of subsea well equipment

Details Method and apparatus for recovery of subsea well equipment Method and apparatus for recovery of subsea well equipment

E - Fixed Constructions

21

B

166/59

E21B 23/00 (2006.01) E21B 29/02 (2006.01) E21B 29/12 (2006.01) E21B 31/16 (2006.01) E21B 31/18 (2006.01)

Patent

CA 1074697

ABSTRACT OF THE DISCLOSURE Method and apparatus are disclosed for recover- ing submerged equipment, such as a guide base and wellhead used in offshore well operations. A recovery tool, which includes an elongated member capable of extending from above the equipment into a well pipe and means for latching the recovery tool to the equipment and explosive means attached to the elongated member for severing the well pipe, is lowered from the water's surface to the equip- ment and then latched thereto. The explosive is then detonated to sever the well pipe. The recovery tool, together with the equipment and severed portion of the well pipe, is raised to the water's surface.

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