Wellhead isolation tool

Details Wellhead isolation tool Wellhead isolation tool

E - Fixed Constructions

21

B

166/59

E21B 23/00 (2006.01) E21B 33/068 (2006.01) E21B 33/128 (2006.01)

Patent

CA 1292675

ABSTRACT An improved wellhead isolation tool is presented which includes an expanding nipple operable from outside the wellhead and casing, the nipple and its concentric mandrels being inserted into the wellhead and thus down through the wellhead array and into the casing or tubing by a concentric hydraulic cylinder. The nipple is then expanded and sealed in the casing or tubing by a second concentric hydraulic cylinder. It is then locked in place both mechanically and hydraulically.

584720

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