METHOD FOR PREDICTING WEATHER DOWNTIME FOR SEMISUBMERSIBLES

In recent months, the market for semisubmersible drilling vessels has been reduced significantly. This is partly because of the sharp increase in the number of semisubmersibles now available, and partly because many oil companies have cut back their exploration budgets. As a result, obtaining contracts for semisubmersibles has become a very competitive business. An important tool that the owner has at his disposal to help sell a particular semisubmersible is a method for predicting the percentage of time that a vessel will be unable to work because of the weather. This paper presents a method for calculating the percentage of downtime resulting from weather that a semisubmersible will experience in a particular sea state. An example for a vessel operating in the South China Sea is given.

• Corporate Authors:

  Society of Petroleum Engineers

  6200 North Central Expressway
  Dallas, TX  United States  75206
• Authors:
  • Springett, C N
• Publication Date: 1977-6

Media Info

• Features: References;
• Serial:
  • Journal of Petroleum Technology
  • Volume: 29
  • Publisher: Society of Petroleum Engineers

Subject/Index Terms

• TRT Terms: Meteorology; Offshore structures; Oil well drilling; Semisubmersibles; Submersibles; Weather conditions; Weather forecasting
• Old TRIS Terms: Weather delays
• Subject Areas: Bridges and other structures; Geotechnology; Marine Transportation; Operations and Traffic Management;

Filing Info

• Accession Number: 00165418
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Nov 23 1977 12:00AM