HYDRODYNAMIC RESEARCH AND FLOATING PIPELAYING EQUIPMENT
For laying gas and oil pipelines offshore from floating structures under severe environmental conditions, various concepts were developed and made operational during the last ten years. For the North Sea area these concepts vary from conventional barges, ship-shaped hulls, small semi-submersibles to large, highly sophisticated semi-submersible pipelaying vessels. Already in the preliminary stage of the development extensive engineering and research work are to be done to establish its optimal workability and to select the final concept. The workability of a concept is mainly determined by its motions and forces caused by wind, waves and current. To establish the hydrodynamic merits of a concept several mathematical methods as well as model techniques are available. The objective of the present paper is to review the various mathematical methods and to correlate the results thereof with model tests and prototype data. Special attention is given to the applicability of these prediction methods with respect to dimensions and transparency of the different structures. Finally, the role of model testing in hydrodynamic research for pipelaying equipment will be discussed. The combined influence of barge motions and wave action on different stinger configurations as well as the behaviour of the pipeline will be considered.
- Paper presented at the European Offshore Petroleum Conference and Exhibition, London, 24-27 October 1978.
Netherlands Ship Model BasinHaagsteed 2, P.O. Box 28
- Minkenberg, H L
- Publication Date: 1978
- Features: References;
- Pagination: 14 p.
- TRT Terms: Barges; Dynamic loads; Excitation; Floating structures; Hulls; Hydrodynamic pressure; Motion; Pipe laying; Semisubmersibles; Ship motion; Underwater pipelines
- Candidate Terms: Pipe laying ships
- Uncontrolled Terms: Floating bodies
- Old TRIS Terms: Barge motions; Hull configurations; Hydrodynamic forces; Model testing
- Subject Areas: Bridges and other structures; Marine Transportation; Vehicles and Equipment;
- Accession Number: 00319471
- Record Type: Publication
- Report/Paper Numbers: Publ. No. 605 Conf Paper
- Files: TRIS
- Created Date: Oct 8 1980 12:00AM