Title: Remote automatic make-up stab-in sealing system

Abstract: A remote, automatic make-up, stab-in sealing system for providing metal-to-metal seals between a projecting structure and a surrounding bore telescopically receiving the projecting structure is disclosed. The sealing system includes the projecting structure, such as a pipe hanger or pack-off nipple. The sealing system further includes apparatus having the bore for receiving the projecting structure, such as a wellhead or tubing hanger. The sealing system also includes a seal assembly. The seal assembly includes at least one frusto-conical shaped metal gasket, a split ring and an actuator ring. The rings force the frusto-conical shaped metal gasket into metal-to-metal sealing engagement with the walls of both the projecting structure and the bore as the projecting structure is telescopically received by the bore.

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Inventors: Morrill, Charles D. (Bellaire, TX, US)

Application Number: 833553
Filing Date: 1977-09-15
Publication_date: 1980-10-21
Assignee: McEvoy Oilfield Equipment Company (Houston, TX)
Primary Class(es): 285/123.2 285/18, 285/123.3
Other Classes:
US Patent Ref:

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Primary Examiner: Shedd, Wayne L.
Assistant Examiner:
Attorney: Ostfeld; David M.