Marine pipe-lay and recovery. Pt. 5. Here's how wind, wave directions affect subsea pipelaying

Journal Article · Sat Mar 01 04:00:00 EDT 1975 · Oil Gas J.; (United States)

OSTI ID:5113821

Bynum, D Jr; H, III, Rapp I

Marine pipe-laying operations must be abandoned with severe weather conditions. So, it is essential to simulate safe operational conditions and determine the exact combined conditions which signal pipeline abandonment. By understanding the limits of envionmental conditions as a function of wave and current directions, efficiency of pipe-lay vessels can be improved. Downtime because of too early abandonment also can be decreased or avoided. Sample problems were computer simulated to determine conditions in the pipeline. One case involved an operation in which waves and current forces acted perpendicular to pipeline. The other case involved waves and current forces acting parallel to pipeline, in the same direction as the barge heading. All possible variables were held constant except wave and current direction. When waves and current were perpendicular to pipeline, stresses were 124% above those where waves and currents were parallel with the pipe-lay vessel heading.

• Research Organization: Eng Technol Anal Inc
• OSTI ID: 5113821
• Journal Information: Oil Gas J.; (United States), Journal Name: Oil Gas J.; (United States) Vol. 73:13; ISSN OIGJA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
022000* -- Petroleum-- Transport
Handling
& Storage
42 ENGINEERING
420205 -- Engineering-- Transport & Storage Facilities-- (1980-)
COMPUTER-AIDED DESIGN
COMPUTERIZED SIMULATION
CURRENTS
DISASTERS
EVALUATION
GRAVITY WAVES
HAZARDS
INSTALLATION
OFFSHORE OPERATIONS
PIPELINES
SIMULATION
STORMS
WATER CURRENTS
WATER WAVES
WAVE FORCES