Wellhead seal probe

Details Wellhead seal probe Wellhead seal probe

E - Fixed Constructions

21

B

E21B 33/04 (2006.01) E21B 19/00 (2006.01) E21B 33/068 (2006.01)

Patent

CA 2042082

ABSTRACT OF THE DISCLOSURE A tool is disclosed for inserting an oil wellhead isolation device into a well casing. The device includes a mandrel which is threaded on its exterior and which forms a part of a ball nut displacement drive system. The drive nut and its associated mechanical drive components are disposed within a drive housing. The invention presents a novel drive system for the inserting of the mandrel. It provides a simpler and more compact overall structure. Furthermore, the disadvantage is avoided of the jamming encountered in prior art devices operating with a plurality of hydraulic or mechanical displacement devices disposed at a distance from the axis of the mandrel.

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