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Title: Wellhead assembly

Patent ·
OSTI ID:6359006

A wellhead assembly with an increased through bore for passing slightly oversized drill bits therethrough with a substantially reduced landing shoulder, and an improved landing assembly which transfers a portion of the stresses through the energizing ring and support ring into the wellhead body along the straight bore above said landing shoulder.

Assignee:
Cameron Iron Works Inc.
Patent Number(s):
US 4515400
OSTI ID:
6359006
Resource Relation:
Patent File Date: Filed date 15 Mar 1983; Other Information: PAT-APPL-358445
Country of Publication:
United States
Language:
English