Rotating connection assembly for subsea pipe connection

Patent · Tue Sep 22 04:00:00 EDT 1987

OSTI ID:5950563

Wallace, N R

This patent describes a connection assembly for interconnecting a subsea well with a platform floating on the surface of the sea. It consists of: a connection box; means coupled with the connection box for pivotally mounting the same on the sea bed for movement from a first position to a second position. The connector box has a flexible pipe segment coupled thereto and is structurally deformable as the connection box moves between the first and second positions. The pipe segment has an inlet end and an outlet end. The inlet end adapted to be coupled to a subsea well to direct flowable hydrocarbons from the well to the outlet end of the pipe segment, there being fitting means on the outlet end of the pipe segment for attachment of the lower end of a fluid conductor extending between the connections box and the vessel. The connection box is pivotal from the first position to the second positions as the length of the fluid conductor to form a J-shaped riser extending between the vessel and the connection box.

• Assignee: Bechtel International Corp., San Francisco, CA
• Patent Number(s): US 4695189
• OSTI ID: 5950563
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
42 ENGINEERING
420206 -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
423000 -- Engineering-- Marine Engineering-- (1980-)
DESIGN
INSTALLATION
JOINTS
MARINE RISERS
MOTION
NATURAL GAS WELLS
OFFSHORE PLATFORMS
OIL WELLS
PIPE JOINTS
PIPELINES
PIPES
POSITIONING
ROTATION
SEA BED
WELLS