EXPERIMENTAL STUDY OF STABILITY LIMITS FOR SEMISUBMERSIBLE DRILLING PLATFORMS

The existing stability criterion for semi-submersible drilling platforms requires thirty percent margin of righting moment energy over wind heel energy to allow for dynamic effects. This second report of a series uses model test results to predict the statistical probability of a downflooding type of casualty for various sea conditions. A six-column twin hull semi-submersible and a four-column footing type vessel are examined in an attempt to test the adequacy of the existing stability criterion.

• Supplemental Notes:
  • Offshore Technology Conference, 7th Annual, Proceedings, V2, Houston, Texas, May 5-8, 1975.
• Corporate Authors:

  Offshore Technology Conference

  6200 North Central Expressway
  Dallas, TX  United States  45206
• Authors:
  • Numata, E
  • Mcclure, A C
• Conference:
  • Offshore Technology Conference, 7th Annual, Proceedings, V2, Houston, Texas, May 5-8, 1975.
• Publication Date: 1975

Media Info

• Features: References;
• Pagination: p. 383-389

Subject/Index Terms

• TRT Terms: Mechanical stability; Offshore drilling platforms; Offshore platforms; Semisubmersibles; Stability analysis
• Old TRIS Terms: Offshore platform stability
• Subject Areas: Bridges and other structures; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00128721
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: OTC 2285 Proceeding
• Files: TRIS
• Created Date: Jan 14 1976 12:00AM