Well apparatus

Details Well apparatus Well apparatus

E - Fixed Constructions

21

B

166/49, 166/51.4

E21B 33/035 (2006.01) E21B 17/07 (2006.01) E21B 17/08 (2006.01) E21B 33/038 (2006.01) E21B 33/043 (2006.01)

Patent

CA 2021477

WELL APPARATUS ABSTRACT There is disclosed an offshore well installation wherein a shoulder of a casing hanger body supported within a casing head on a platform at the water surface has been lowered onto a seat in the head so as to support a casing string anchored at its lower end to a mudline hanger in tension, the lower end of the hanger body being connected to the upper end of the string by an adjustable sub which is manipulated by a tool lowered through the hanger body and into the sub so as to adjust it from an extended position in which its shoulder is above the seat in the head to a retracted position in which the shoulder is seated on the head and the casing string is placed in tension.

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