CAE NAVAL OFFSHORE 2010
Structural Integrity Assessment of Offshore
     Equipment at SUBSIN using ANSYS
                      Cassiano Neves, Melquisedec Santos
                             Rio de Janeiro, 18/05/2010.
                                     Introduction
 Engineering Company for the Oil & Gas Sector
 Established: 2008 (2001 – CIETEC)
 High Level Engineering Services:
   FEED, Feasibility Study, Conceptual Design
   Support to detailed design, 3rd part verification
   R&D
   Inspection with Mobile Robots
   Integrity Assurance
   Software Development
                                     Mission
 Combine engineering analysis and inspection services
using mobile robots with the objective to assure the
structural integrity of equipment.
                 Integrity Assurance Cycle
                                           Team
 Technical Staff (12):
    3 DSc + 3 MSc
    Expertise:
      • Risers and Pipeline Engineers
      • Structural Design Engineers
      • Fracture and Fatigue Specialists
      • Electronics Engineers
      • Technicians
      • Inspection Engineers
      • Management and Finance Experts
                                Offshore Engineering
 Services:                        Applications:
   Hydrodynamics                    SCR and Flexible Risers
   Pipeline and Riser Design        Umbilical
   Static and Dynamic Analysis      Drill Pipe Riser &
   Modal/VIV Analysis                Completion/Workover Riser
   Fatigue Analysis                 Pipeline & Flowline
   ECA (Engineering Critical        Subsea Equipment
                                    Installation
    Assessment)
                                     Manifold
   On-bottom Stability
                                     LNG spheres
   Free-span Analysis
   Structural Analysis
                           Offshore Engineering
 Top tensioned riser analysis:
   Operability
   Fatigue and VIV
   Deployment/Retrieval
   Standards: API RP 16Q; API 17G; ISO13628.
   Softwares:
     • Flexcom
     • Modes3D
     • Shear7
     • Crackwise
     • Ansys
                            Offshore Engineering
 FEM (Finite Element Method)
   Numerical Analysis
   Softwares: Ansys
             Steel Tube Umbilical Termination Device
                            Offshore Engineering
 FEM (Finite Element Method)
   Numerical Analysis                 Region 1
                                                  Region 3
   Softwares: Ansys                                     Region 2
               FEM analysis of the Wellhead Device
                            Offshore Engineering
 FEM (Finite Element Method)
   Numerical Analysis
   Softwares: Ansys
               FEM analysis of the Reel Shaft End
                               Integrity Assurance
 Integrated services
 Structural Integrity Evaluation
    Corrosion and Structural Analysis
    Fatigue and Fracture Analysis
    Failure Evaluation
 Inspection Services
    Visual and Laser Inspection (InspectorSystems)
    Grinding Robot (InspectorSystems)
    Heat Exchange
                            Integrity Assurance
 Pipe Crawler for Visual-laser Inspection
      TYPE:                   INNER DIAMETER
      Inspector type 1000     75 – 110 mm
      Inspector type 2000     95 – 140 mm
      Inspector type 3000     130 – 200 mm
      Inspector type 4000     180 – 325 mm
      Inspector type 5000     310 – 510 mm
      Inspector type 6000     440 – 750 mm
                             Integrity Assurance
 Pipe Crawler for Visual Inspection
   Inner Diameter: 400mm (minimum)
   Image can be edited online and saved in AVI format
                               Integrity Assurance
 Storage tank inspection robot:
   Software in accordance to the API 653 and 650
   Magnetic wheel
   8 ultrasound transducers
   Status (ongoing)
                              Integrity Assurance
 Corroded Analysis
   Numerical Analysis
   Softwares: Ansys
                         Corroded Pipeline
                                Integrity Assurance
 Grinding Robot
   Grind critical welds in the zones subject to maximum fatigue
   Visual inspection and MPI tests were conducted
   The roughness of the ground surface was measured
   Increase the fatigue life in 2.5 to 4.0 times
                             Integrity Assurance
 Grinding Robot
   Application (Kizomba Field/Angola; Saipem/Exxon Mobil): 240
  welds
                                               R&D
 Offshore engineering:
   Y-Method for subsea equipment installation
   Load-up for subsea equipment installation
   In-situ flexible riser damage
   New configurations for risers (pre-salt)
   TTR monitoring to extend the operational window
 Design, Construct and Operate Mobile Service Robots:
   Flexible and SCR Riser Inspection
   Storage Tank Inspection Robot
   Drill pipe riser inspection – on board
   Barge inspection
                      R&D
 Y-Method:
               FINEP Grant (R$1,8MI)
               Model test (USP and LabOceano)
                                   R&D
 Flexible and SCR Riser Inspection Robot:
   Sensors Platform
   Sensors Fusion Technique
   Inertial Navigation System
                               Conclusions
 Subsea engineering company
 Multi-disciplinary
 Asset assurance
 Just in time engineering
 State of art solutions
www.subsin.com.br
subsin@subsin.com.br
P: +55 21 2275 8001