AN ENERGY BASIS FOR THE DESIGN OF OPEN-OCEAN SINGLE-POINT MOORINGS

The use of tankers or large barges for permanent crude oil storage at offshore locations requires design of moorings for conditions more severe than for existing single-point moorings. Model tests simulating loaded and ballasted tankers of 28,000 to 190,000 dwt, water depths to 600 ft, and wave heights up to 40 ft were conducted for (1) conventional catenary-moored SPM buoys, (2) the newly developed single anchor-leg mooring, and (3) turret mooring. A correlation of potential energy stored by the mooring when the vessel is offset by wave action suggests that this energy is primarily a function of significant wave height and loaded storage vessel displacement but is independent of water depth or type of single-point mooring system. A procedure based on the energy correlation has been developed for the design of open-ocean, all-weather single-point moorings.

• Supplemental Notes:
  • Held in Houston, Texas, May 1-3, 1972.
• Corporate Authors:

  Offshore Technology Conference (4th)

  6200 North Central Expressway
  Dallas, TX  United States  75206
• Authors:
  • Maddox, N R
• Publication Date: 1972

Media Info

• Pagination: p. 255-266
• Serial:
  • Issue Number: 1

Subject/Index Terms

• TRT Terms: Dynamic loads; Mooring; Offshore terminals; Petroleum; Petroleum terminals
• Subject Areas: Geotechnology; Marine Transportation; Terminals and Facilities;

Filing Info

• Accession Number: 00056529
• Record Type: Publication
• Source Agency: American Petroleum Institute
• Report/Paper Numbers: OTC #1536 Preprint
• Files: TRIS
• Created Date: Jul 22 1974 12:00AM