Adjustable mandrel well casing hanger

Details Adjustable mandrel well casing hanger Adjustable mandrel well casing hanger

E - Fixed Constructions

21

B

E21B 33/04 (2006.01) E21B 33/038 (2006.01) E21B 33/043 (2006.01)

Patent

CA 2069077

ABSTRACT The present invention relates to a three- component adjustable mandrel easing hanger assembly that can be attached to the upper end of a tie-back sub or string to effect a tensioned connection between the mudline and a surface located wellhead of an offshore well. A variable length hanger neck facilitates extension of the hanger body to a position above the mandrel where a packoff can be installed to provide a seal of the annulus between the hanger and the wellhead, regardless of the actual position of the hanger body with respect to the wellhead.

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