Naval Architecture & Marine Engineering Capability
Floating Structures Expertise
SWAX floating structures expertise covers all types of floating technology:
- Mono-hull production vessels
- FPSOs / FSOs
- FSRUs
- Ships & boats
- Tankers
- Barges
- Installation vessels
- Tugs
- Buoys
- Crew boats
- Catamarans
- Dredgers
- Semi-submersibles
- Drilling units
- FPUs
- Spars
- Tension leg platforms
- Jack-ups
- Offload systems
- Side by side
- Tandem
- CBM
- SPM
- SALM
- Risers
- Flexible risers
- Steel catenary risers
- Mid-water arches
- Lazy wave configurations
- Subsea structures installation
- Submarines & submersible structures
- Floating offshore wind (FOW) foundations
- Semi-sub
- TLP
- Mono-hull/barge type
- Spar
- Floating offshore solar platform concepts
- Floating substations
- Dynamic cables
- Mooring systems
- Shallow water
- Deep & ultra deep water
- Spread moorings
- Turret moorings
- Chain & fibre rope.
- Anchoring systems
- Driven & drilled piles
- Suction
- Drag embedment
- Torpedo
- SEPLA.
- Walk to work accessways.
- Cranes & materials handling systems on floating structures
- Helidecks on floating structures
- Lifeboats and escape systems
Naval Architecture Capability
SWAX engineers cover all aspects of naval architecture for offshore floating structures from concept to operation:
New-build, conversion, and redeployment of floating structures.
Preparing specifications, hull sizing and global structural design
Finite element modelling, analysis & fatigue assessment, coupled dynamic, vortex induced vibration assessment.
LQ design & analysis with Helideck
Hydrodynamics, static & dynamic stability, seakeeping, riser & mooring analysis.
Loadout, transport & installation engineering, heavy lift, float over and upending analysis.
Global hull strength check
Weight management & control.
Software:
- MOSES
- AutoHydro
- Shipwright
- Delftship
- Freeship
- Orcaflex
- SACS
- StaadPro
- ETABS
- PDMS
- Rhinoceros
- ANSYS / ABAQUS
- DNV SESAM
FPSO module design
Marine Engineering Capability
SWAX offer the full spectrum of marine engineering capability from concept to operation:
Mechanical systems and equipment,
propulsion & thruster systems, rotating equipment, HVAC systems
Ballast, cargo pumping / offload and wash, firewater, hydraulic systems – systems modelling, flow assurance, surge modelling, piping design, piping stress, pumps, valves
Turret Piping Design
Cryogenic systems (LCO2, H, LNG)
CO2 reduction & carbon neutral solutions
Electrical systems, power gen, transformers, & distribution
Instrumentation & monitoring, control & automation systems
Corrosion protection & coatings
3D modelling, routing & layouts
Software & modeling tools:
- Autodesk Navisworks
- AutoPIPE
- Caesar II
- EPANET
- AVEVA PDMS & E3D
- Intergraph CADWorx
- Bentley AutoPLANT 3D, MicroStation
- Autodesk AutoCAD / Plant 3D
- Revit
- SolidWorks
Pipe stress analysis & supports design
CASE STUDY – Marine Engineering and T&I Engineering for Floating Offshore Wind TLP
Challenges:
Our client contracted to deliver the design for their proprietary technology for a floating offshore wind turbine for deployment in the South China Sea. This was a significant scope and facing capability and capacity gaps in the areas of marine engineering (ballast system design, electrical, I&I), plus T&I engineering, they turned to SWAX for cost effective support in the project delivery.
SWAX worked with the client to clearly define the scope of work and identifying the parameters affecting the performance.
SWAX performed marine systems and T&I engineering and provided volume drafting and 3D modelling.
SWAX provided full project management and quality assurance as part of SWAX’s unique “Assured, Managed, Delivered” outsourced work process. SWAX responded quickly, deploying a specialist team to deliver the scope with our unique “Assured, Managed, Delivered” outsource process.
SWAX worked collaboratively with the client team to provide a cost-effective solution with optimal results. The SWAX approach ensured the client management effort in the outsource process was kept to a minimum. The client’s association with SWAX was a success.
CASE STUDY – Offshore Floating Solar Concept Development
Challenges:
Our client is developing a floating solar concept for deployment in the offshore environment. Without an in-house engineering team, the client contracted SWAX for cost-effective support in the development of the concept. SWAX had previously worked on the concept ideation and this next phase focussed on concept development and FEED level dynamic analysis and refinement of the global structural design for the offshore environment.
SWAX worked with the client to define the scope of work. We used a workshop session to brainstorm and select the scope elements that would add best value for this phase. We assembled a specialist engineering and analysis team to deliver the scope. We used Orcaflex to perform the dynamic analysis, developing a baseline Orcaflex model and performing sensitivities on key parameters (structural stiffness, wave height, current speed, wind speed, etc.).
SWAX performed design of the primary structure and successfully proved feasibility in the offshore environment. The structural assessment included determination of the mass properties and material quantities for the selected concept, structural stiffness calculations and assessment of the structural performance in extreme offshore waves.
The SWAX team provided full project management and quality assurance as part of SWAX’s unique “Assured, Managed, Delivered” outsourced work process. SWAX’s specialist hydrodynamics and structural team adapted quickly and efficiently to changing requirements identified as the design evolved.
This cost-effective approach to the design process achieved the optimum solution for the design. The client’s association with SWAX was a success.
Notable Project Experience of the SWAX team
- BW Offshore FPSO Espoir Ivoiren O&M assessment.
- OMV Norway Wisting FPSO Concept project management.
- Equinor Bay du Nord FPSO Topsides concept, incl. digitalisation, low manning operation, low carbon production, and power from shore.
- LNG FSRU transaction due diligence.
- Premier Oil Sea Lion FPSO steel lazy wave riser concept in 450m water.
- Mellitah Oil & Gas Gaza FSO detail design, construction, installation, HUC and start-up of a turret moored FSO, subsea structures, pipeline, HV power cable and risers.
- Maersk Culzean FSO FEED, incl. VOC release/gas boil off & cargo heating.
- ADDAX Ofrima Udele FSO with articulated turret mooring.
- Quantum Power LNG FSRU metocean study & availability.
- Hess Deepwater Ghana Development concept FPSOs.
- BP Raven Development concept selection incl TLP options.
- Wintershall F17 Development concept incl floating, fixed & GBS.
- Berantai FPSO conversion.
- West Desaru MOPU conversion.
- Northern Producer mooring system failure assessment.
- Ithaca Stella development FPU.
- Shell Penguins development FPU.
- Floating Offshore Wind TLP T&I engineering.
- FOW Ballast system design.
- Offshore floating solar concept design development.
- Saitec DemoSath Floating Offshore Wind platform access study.
- EU Mooring Sense H2020 Project.
- Mooring system assessments.
- Wave Hub Cornwall offshore renewable energy test facility.
- Liquid CO2 storage barge concept.
- Structural detail design for ships.
- Turret pipework design, specification, 3D modelling, isometrics and stress analysis.
- Due diligence for FPSOs and Semis for acquisition/conversion.
- Tullow Oil Kudu concept subsea architecture, FPSO and pipeline.
- BG Santos Basin concept offloading system for 8 FPSOs.
- Total CLOV Angola interface management: FPSO-Subsea.
- PetroCanada Terranova FPSO interface & risk management.
- BP Schiehallion FPSO hull & marine systems design review.
- Texaco Mariner FPSO model tests.
- Texaco Captain Field FPSO naval architecture.
- BP Atlantic Frontier floating structures concepts & costs.
- Kerr McGee Gryphon Alpha FPSO naval architecture & inclining test.
