DYNAMICALLY POSITIONED RIG FEATURES LATEST TECHNOLOGY

Equipment on board the Petrel, a recently completed dynamically positioned drillship, is briefly described. The vessel requires no mechanical anchoring devices, but is kept on station by its twin propellers and several transverse thrusters. Propulsion units are controlled by a computer that constantly registers charges in force and direction of wind and currents, and compares these with the position which the vessel must maintain to continue drilling. Advantages of this type of design are summarized.

• Corporate Authors:

  Gulf Publishing Company

  Box 2608
  Houston, TX  United States  77001
• Publication Date: 1977-2-1

Media Info

• Pagination: p. 34-35
• Serial:
  • World Oil
  • Volume: 184
  • Issue Number: 2
  • Publisher: Gulf Publishing Company

Subject/Index Terms

• TRT Terms: Design; Drilling machines; Drilling ships; Dynamic positioning; Oil well drilling
• Uncontrolled Terms: Ship design
• Old TRIS Terms: Drillships; Positioning control systems
• Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00156860
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Jul 2 1977 12:00AM