Many design features of the world's largest drilling rig are described. The Ocean Ranger, as the big semisubmersible is known, is designed primarily to allow deep water drilling under the most severe conditions. The Ranger's first well is a continental offshore stratigraphic test (COST) for Atlantic Richfield Co. The location is in 450 ft of water near Dutch Harbor, about 600 miles southwest of Anchorage. The Ocean Ranger can withstand 115-mph winds, 100-ft waves, and a 3-knot current simultaneously. It can drill at an 80 ft draft in water depths up to 1,500 ft.

  • Availability:
  • Corporate Authors:

    Petroleum Publishing Company

    211 South Cheyenne, P.O. Box 1260
    Tulsa, OK  United States  75221
  • Authors:
    • Moore, W D
  • Publication Date: 1976-7-26

Media Info

  • Serial:
    • Oil and Gas Journal
    • Volume: 74
    • Issue Number: 30
    • Publisher: PennWell Publishing Company
    • ISSN: 0030-1388

Subject/Index Terms

Filing Info

  • Accession Number: 00147814
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Feb 16 1977 12:00AM