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MEK 4450
Marine Operations
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Presenter name, location, date etc.
Kværner ASA / DNV, Fall 2012

2. Various Types of Platforms
Floating or bottom fixed
Living quarters, storage, drilling, processing etc
Foundation + topside

3. Installation Prepare for transport Tow to field Installation
Load-out, dry tow
Transfer to floating condition, wet tow
Tow to field
Design of towing fleet
Installation
Transfer to “installation mode”
Positioning (horizontal and vertical)
Hook-up to mooring, set- down on sea floor etc.
Installation of topside

4. Jacket fabrication
Bilder

5. Load-out
Bilder

6. Load-out
Bilder

8. Transportation
Bilder

14. Some challenges during launch and upending
Position and size of temporary buoyancy tanks
Maximum forces at rocker beam
Maximum depth during launch
Structural loads due to hydrostatic pressure
Bottom clearance
Floating condition after launch
Access to lifting arrangement
Upending
Structural loads
Crane load
Bottom clearances
Proper upright position
Ballasting of side legs

15. Jacket installation: crane lift

16. Jacket installation,- final phases
Jacket in upright position?
Ballast in jacket legs
Transit to set-down point. Several 100 meters
Further ballasting and lowering by crane
Landing
Release crane
On-bottom stability in temporary phase?
Piling

17. Topside
Bilder av Loadout og floatover
Skidding or trailers

18. Topside

19. Float-over

20. Topside
Bilde av Dry tow-out

23. GBS
Bilder at GBS utslep og installasjon

24. Jack- up

25. Jack-up footings

27. Tension Leg Platform (TLP)
Platform with buoyant sub-structure
Vertical strong and stiff mooring, high pre-tension
Vertical motion arrested
Large horizontal motions

28. TLP installation Lowering and piling of foundations
Tendon installation
Tow-out of platform
Hook-up and pre-tensioning

29. Types of floaters

30. Installation of mooring system

31. Tow-out and installation of floater

32. Tow-out and installation of floater

33. Tow-out and installation of floater

34. Mooring hook-up

35. Mooring hook-up
Skisser