Blast joint swivel for wellhead isolation tool and method of...

Wells – Processes – Assembling well part

Reexamination Certificate

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Details

C166S382000, C166S085100, C166S075140, C166S075130

Reexamination Certificate

active

11025453

ABSTRACT:
A blast joint swivel for use in a wellhead isolation tool includes a blast joint hanger mounted to a top of the wellhead isolation tool and a swivel body rotatably received in the blast joint hanger. The swivel body threadedly connects to a blast joint, which in turn threadedly connects to a top end of a tubing string suspended in a well. The blast joint swivel can also be displaced vertically over a limited range between upper and lower abutments.

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