Mooring apparatus and method of installation for deep water tension leg platform

Patent · Tue Nov 15 00:00:00 EST 1988

OSTI ID:6468469

Hunter, A F

This patent describes a method of mooring an offshore platform in a body of water having a surface and a floor comprising the steps of: locating anchoring means on the floor of the body of water, the anchoring means adapted for receipt of mooring tendons through a side entry opening therein; stationing a semi-submersible floating structure on the surface of the body of water above the anchoring means. The floating structure consists of external tendon receptacles adapted for side entry receipt of the plurality of mooring tendons, the tendon receptacles being located at an initial distance above the anchoring means; providing one piece, substantially rigid tendons disposed substantially horizontally near the surface and adjacent the floating structure, the tendons having enlarged top and bottom end connectors and an actual length which is greater than the initial distance; swinging the enlarged bottom end connector of one of the tendons downwardly into a position adjacent one of the plurality of anchoring means; pulling the enlarged bottom end connector of one of the tendons through the side opening in one of the anchoring means.

• Assignee: Conoco Inc., Ponca City, OK
• Patent Number(s): US 4784529
• OSTI ID: 6468469
• Resource Relation: Patent File Date: Filed date 6 Oct 1987
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
42 ENGINEERING
OFFSHORE PLATFORMS
MOORINGS
ANCHORS
DESIGN
INSTALLATION
NATURAL GAS WELLS
OIL WELLS
POSITIONING
SUPPORTS
MECHANICAL STRUCTURES
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing
420206 - Engineering- Mining & Drilling Equipment & Facilities- (1980-1989)
423000 - Engineering- Marine Engineering- (1980-)