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U.S. Department of Energy
Office of Scientific and Technical Information

Subsea wellhead equipment

Patent ·
OSTI ID:6593699
This patent describes a tieback connector. It is for use in connecting a conductor to a tubular wellhead member mounted in an upright position at a subsea location and having a groove about its bore whose upper end is conically tapered downwardly and outwardly with respect to the bore and upwardly facing seat means about the upper end of the bore.
Assignee:
Dril-Quip, Inc., Houston, TX (USA)
Patent Number(s):
US 4941691; A
Application Number:
PPN: US s 7-204089
OSTI ID:
6593699
Country of Publication:
United States
Language:
English