Offshore well test platform system

Patent · Tue Mar 06 04:00:00 EST 1990

OSTI ID:6894712

Chiu, H; Nelsen, D K

This patent describes an offshore well test platform system positionable above one or more underwater wells. It comprises: a submergible buoy to be restrained below the surface of the water and above one or more underwater wells; a platform structure connectable to the buoy and having an upper portion extending above the surface of the water when connected to the buoy in an installed condition; a well test platform deck connected to the upper portion of the platformed structure; flexible riser means extendable between the one or more underwater wells and the platform deck for providing passage therethrough for well test or workover operations; and restraining means for connecting the submerged buoy to subsea anchors. The restraining means consists of equally spaced, laterally extending tensioned anchoring means having a single intersection of mooring forces at or above the platform deck.

• Assignee: Amoco Corp., Chicago, IL
• Patent Number(s): A; US 4906139
• Application Number: PPN: US 7-263150A
• OSTI ID: 6894712
• 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
423000 -- Engineering-- Marine Engineering-- (1980-)
ANCHORS
BUOYS
FASTENERS
MARINE RISERS
NATURAL GAS WELLS
OFFSHORE PLATFORMS
PIPES
TESTING
WELLS