Suction anchor solutions
SubseaDesign provides full service within suction anchor design, fabrication and testing.
- Geotechnical calculations
- Structural calculations / analysis
- Cathodic protection design
- Lifting analysis and certifications
- Transportation and installation analysis.
- Fabrication and testing.
Mooring line support features and benefits
- Optimized for given soil condition at locations
- Integrated suction hatch with suction stab
- Cost effective fabrication sequence
- Short delivery time
- Around 40 suction anchors delivered and installed (per Sept 2021)
interfaces
- Suction hatch with integrated stab receptacle
- Different soil condition suitable for suction anchor
- Installation and handling lifting point as required for transport and installation
- Interface with various mooring line connection
- Delivered with anodes to protect hatch for the service life
- Delivered with electrical strapping
how it works
After landed the suction anchor on seabed at location and self penetration stopped, the suction hatch is closed suction is applied until the anchor reached target depth.
After a certain soil consolidation period, the anchor is ready to mooring line tensioning.
application
Mooring lines support for BOP during drilling
Mooring lines support for offshore windmills
Seabed securement via suction anchors.
technical data
| Design code | ISO 13628 DNVGL-ST-E237 DNVGL-RP-C212 DNVGL-RP-E303 ISO 19901-4 |
| Diameter | Largest delivered is 6 m |
| Length | Longest delivered is 12 m |
| Design suction pressure | Up to 20 bar |
| Design over pressure | Up to 20 bar |
| Max. water depth | No limitation |
| Lifetime | 25 years |
| Coating on top section | Typical Norsok system 7, or as required |
