North Sea rigs risk more stress

Journal Article · Mon Feb 01 04:00:00 EST 1982 · Offshore; (United States)

OSTI ID:5597450

Steven, R R

Semisubmersible accommodation rigs are more exposed to the dangers of stress and fatigue in the North Sea than rigs employed on exploration drilling. Fatigue risks, mooring stresses and wave forces were all considered. Continued analysis has lead to structural improvements and changes in design engineering. All eight accommodation rigs now operating in the North Sea have been purpose built for the job to Pacesetter or Aker H-3 design and the oldest has only been in service for five years or so. None of them has been specially designed or modified to take account of the greater stresses that will be experienced in service. (DP)

• OSTI ID: 5597450
• Journal Information: Offshore; (United States), Journal Name: Offshore; (United States) Vol. 42:2; ISSN OFSHA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
42 ENGINEERING
423000 -- Engineering-- Marine Engineering-- (1980-)
ATLANTIC OCEAN
DESIGN
DRILLING
DRILLING RIGS
FATIGUE
HAZARDS
MECHANICAL PROPERTIES
MOORINGS
NORTH SEA
OFFSHORE DRILLING
OIL WELLS
SEAS
STRESSES
SURFACE WATERS
WAVE FORCES
WELLS