Design and Analysis of Floating Production Systems

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Speaker: Dr Jinzhu Xia, Head Consultant, Marine, Granherne, Australia
Date: Tuesday, 6 March 2012
Hosted by: WA Oil & Gas Facilities Group a co-venture between Engineers Australia and the Society of Petroleum Engineers (SPE)

Published in: Business, Technology
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Design and Analysis of Floating Production Systems

  1. 1. Design and Analysis ofFloating Production SystemsJinzhu XiaMarch, 2012
  2. 2. Primary Engineering Scope• Concept Screening and Sizing Studies• Naval Architecture• Hydrodynamic and Global Performance Analysis• Model Test Specification and Support• Mooring System Design and Analysis• Riser System Design and Analysis• Structural Design and Analysis• Marine System Design• Transportation and Installation Analysis• Project Execution Support 2
  3. 3. Australia’s Gas Network 3
  4. 4. The Deepwater Frontier 4
  5. 5. Offshore Platform Overview 5
  6. 6. Worldwide FPSOs 6
  7. 7. Worldwide Semisubs 7
  8. 8. Worldwide TLPs 8
  9. 9. Worldwide Spars 9
  10. 10. Platform Screening and Sizing Using benchmarked processes developed in-house, Granherne can efficiently size and compare platform options for specific field developments Semisubs Spars TLPs FPSOs• Hull Configuration • Hull Configuration • Hull Configuration• Hydrostatics & Static • Hydrostatics/Stability • Hull Configuration Stability • Heave and Pitch Periods • Hull Weight and VCG • Tendon Configuration • Ballast/Storage Configuration• Hull Weight and VCG • Fixed Ballast Estimate • Tendon Strength • Hydrostatics & Stability• Natural Periods • Natural Periods • Offset and Air Gap • Hull Weight and VCG• Motions Estimates • Mean Pitch Angle • Ballast • Natural Periods and Motions 10
  11. 11. Naval Architecture• Detailed Hull Configuration and Sizing• Arrangements and Layouts• Weight Control• Wind and Current Load Calculations• Compartmentalization• Intact and Damaged Stability• Certification & Classification• Operability Analysis• Marine Operating Manuals Deck #9 Elev (+)16.8m VOID Deck #8 Elev. (+)6.0m VOID Deck #7 Elev. (-)6.0m VOID Hard Tank Below WL Deck #6 Elev. (-)22.8m BALLAST Deck #5 Elev. (-)39.6m BALLAST Deck #4 Elev. (-) 56.4m SKIRT TANK Mooring Elev. (-) 69.2m Open Deck Elev. (-) 73.2m Heave Plate Elev. (-) 121.8m Heave Plate Deck #3 Elev. (-)164m Deck #2 Elev. (-)170.5m Fixed Ballast Deck #1 Elev. (-)175.0m 22.2 m Design of a Floating LNG Facility FPSO Hull Configuration 55.5 m Spar Hull Configuration 11
  12. 12. Hydrodynamic and Global Performance Analysis– Wave Diffraction and Hull Motion Analysis– Coupled Hull, Mooring and Riser Analysis– Multi-Body Interaction Analysis– Air Gap Analysis– Slamming and Green Water Analysis– VIM Analysis Air gap analysis WAMIT analysis of various hull forms 12
  13. 13. Model Testing– Wave Basin Testing– Wind Tunnel Testing– VIM Testing 13
  14. 14. Mooring Design and Analysis• Mooring Design: – Catenary/Taut/Semi-Taut Spread Mooring – Turret Mooring – Single Point Mooring Wire Rope Sockets Spiral Strand – Quayside Mooring TW1 PW1 WIW WIE FWIE2 PE1 PE2 PE3 Line 7 Line 8 Fairleads Line 9• Specialty Analysis FE1 FE2 – Vortex-Induced Motion Effects Line 6 FE3 FE4 Line 5 FE5 – Polyester Application Line 4 Yv – Fatigue Analysis Xv GasExp – Chain Wear Predictions OilExp FW1 Line 10 Line 11• Specification of Mooring Components Line 12 Studless Chain Line 3 Line 2 Line 1• Procurement & Installation Support BP Atlantis - Detail Design, Procurement and Installation Evaluation of VIM effects on an Barracuda/Carintgua Detail Design Design of a soft yoke mooring system existing Spar Mooring System ( Polyester Moorings) for Bohai Bay - China 14
  15. 15. Riser Design and Analysis– Design of Single or Multiple Risers: • Flexible Risers • Steel Catenary Risers • Top-Tension Risers • SLOR (Tower) Risers • CVARs– Dynamic Analysis, Interference Studies– 1st & 2nd Order Fatigue Analysis– VIV Analysis– Component Design and Specification TTR and SCR CVAR Development Solutions Detailed Analysis of Flexible Productions Risers for the Barracuda and Caratinga FPSOs 15
  16. 16. Structural Design and Analysis– Design and Design Verification for: • FPSO and FLNG Ships • Semisubs • Spars • TLPs– Global Strength and Fatigue Analysis– Development of “Fatigue-Friendly” Details Analysis of FPSO Hull Structure– Advanced Finite Element Analysis– Dynamic Response Analysis– Specification Development– Fabrication Support FEA of Forged Mooring Link Design of a Riser Protection Detailed Global Strength and Fatigue Analysis Frame using Nonlinear Analysis Ocean Victory Class Semisubmersible 16
  17. 17. Marine System Design– Marine System Design for All Hulls– P&ID and Layout Development– Specification Development– Procurement Support– HVAC– Instrumentation and Controls Atlantis Semisubmersible Marine & Utility System Design, Design of FPSO Bilge and Ballast Systems Procurement Support and Site Support 17
  18. 18. Transportation and Installation Analysis– Concept Development– Detail Engineering– On-site Installation Support– Third Party Review PostStep #1 Step #2 Step #3 Step #4 Step #5 Upending Thunderhorse Flowline Jumper Installation Analysis Spar Upending Analysis Benguela Belize Topsides Transportation Analysis 18
  19. 19. Project Execution Support– Integrated Project Management– Owner’s Engineering Representative– Capabilities Include: • Detail Engineering • Procurement Support • Regulatory Coordination • Fabrication Yard Support • Installation Support Petrobras Barracuda/Carintga FPSOs • Commissioning Support • Final Documentation BP ATLANTIS Semisubmersible Conoco Belanak FPSO 19
  20. 20. Software ToolsNaval Architecture / Hydrodynamics Structural Analysis• Hydrostatics & Stability – HydroD • SESAM • ABAQUS – AutoHydro • SACS• Hydrodynamics – WADAM, WAMIT – HydroStar Riser Analysis• Mooring – MIMOSA • Orcaflex • Riflex – OrcaFlex • Shear 7 – Ariane 50 −3 −2 • VIVA −0.5 40 column area column area 0.5 3 4 30 − 6 5.5 5.5 − 2• Global Performance 20 10 6.5 5.5 5 6 − 0 − 6. − 2 1 − • Flexcom 3D 0 − • DeepRiser 4.5 6 – SIMO 3.5 1 3 −10 2 0.5 −20 3.5 0.5 1 0 −1 −0.5 −0.5−1.5 0 1 • ABAQUS −5 4 −1 −30 1.5 1.5 1.5 1.5 1.5 22 22 – DeepC 2.5 2.5 2.52 2.5 5.5 5.5 −40 2.5 column area 333 3 column area 5 5 3.5 3.5 −50 6 −40 −20 0 20 40 60 – AQWA 20
  21. 21. Some KBR MilestonesHutton TLP Hoover SparConocoPhillips ExxonMobilThunder Horse Semi Agbami FPSOBP Chevron 21

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