Subsea wellhead structure

Patent · Tue Sep 08 04:00:00 EDT 1987

OSTI ID:5921784

Galle, Jr, E M; Gendron, K; Berner, Jr, P C

A subsea wellhead structure is described comprising: a casing hanger having an exterior downwardly facing shoulder, a central bore, an upper internal threaded surface and an upper exterior surface tapered downwardly and outwardly, a seal assembly including a metal seal sleeve having downwardly extending fingers, and an intermediate sealing portion including an internal annular bulbous metal sealing surface and an external cylindrical metal sealing surface, means for latching the sealing assembly in set position, a protector sleeve, and means releasably securing the protector sleeve to the seal assembly and the latching means.

• Assignee: Cameron Iron Works, Inc., Houston, TX
• Patent Number(s): US 4691780
• OSTI ID: 5921784
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
CONFIGURATION
CYLINDRICAL CONFIGURATION
DESIGN
ELEMENTS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
FABRICATION
FASTENING
JOINING
JOINTS
MATERIALS HANDLING
MATERIALS HANDLING EQUIPMENT
METALS
NATURAL GAS WELLS
OFFSHORE PLATFORMS
OIL WELLS
SEALS
SLEEVES
SURFACES
THREADED JOINTS
WELL COMPLETION
WELLHEADS
WELLS