Forney Fuller & Associates, Inc. have secured patents in the U.S. and other countries for the Deep Ocean Pipeline System (DOPS), a design which consists of a large-diameter conduit surrounded by a number of smaller satellite conduits which when all are empty, would create positive buoyancy sufficient to float the whole line. Filling the satellite lines with ballast or product would sink the line and hold it in position on the ocean floor. Special pipe pigs would be used inside the satellite lines to position the ballast material, and the section to be flooded or sunk could be controlled from either offshore or onshore. Advantages include (1) lower pipeline costs due to onshore fabrication and use of conventional towing vessels for moving the line to its offshore location, and (2) greater pipeline cross-sectional strength to minimize bending stresses and protect the main conduit from anchordragging accidents.

  • Availability:
  • Corporate Authors:

    Petroleum Publishing Company

    1400 South Post Oak Road
    Houston, TX  United States  77027
  • Publication Date: 1970-6-5

Media Info

  • Pagination: 2 p.
  • Serial:
    • Offshore
    • Volume: 30
    • Issue Number: 6
    • ISSN: 0030-0608

Subject/Index Terms

Filing Info

  • Accession Number: 00056236
  • Record Type: Publication
  • Source Agency: American Petroleum Institute
  • Files: TRIS
  • Created Date: Jul 15 1974 12:00AM