Title:
ALIGNMENT GUIDE FEATURE FOR METAL TO METAL SEAL PROTECTION ON MECHANICAL CONNECTIONS AND COUPLINGS
Document Type and Number:
WIPO Patent Application WO/2015/077464
Kind Code:
A3
Abstract:
A connection is established between a pin connector and a box connector defined on a pair of tubular members such as casing segments in the field of oil and gas recovery. The pin connector and box connector include features for the protection of metallic-sealing surfaces during assembly, disassembly, transport and handling of the tubular members. The pin connector includes a stabbing flank with an inwardly tapered annular flank surface thereon, and an alignment protrusion extending outward with respect to the pin-side metallic sealing surface in a direction normal to a cone angle defined by the inwardly tapered annular flank surface. The alignment protrusion engages internal surfaces of the box connector to concentrically align the pin connector with the box connector, and thereby protects the metallic sealing surfaces from damage that might otherwise result from collisions between the pin connector and the box connector.
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Inventors:
ZHU BAOZHI (US)
PALLINI JOSEPH W (US)
STEEN THOMAS (US)
PATTERSON WILLIAM R (US)
PALLINI JOSEPH W (US)
STEEN THOMAS (US)
PATTERSON WILLIAM R (US)
Application Number:
PCT/US2014/066634
Publication Date:
October 01, 2015
Filing Date:
November 20, 2014
Export Citation:
Assignee:
VETCO GRAY INC (US)
International Classes:
E21B17/042; F16L15/00
Domestic Patent References:
| WO2004109173A1 | 2004-12-16 | |||
| WO1985002651A1 | 1985-06-20 | |||
| WO2015049097A1 | 2015-04-09 |
Foreign References:
| US20040262919A1 | 2004-12-30 | |||
| EP2196714A1 | 2010-06-16 |
Attorney, Agent or Firm:
DOMBROWSKI, Joanna M. et al. (Global Patent Operation3135 Easton Turnpik, Fairfield CT, US)
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