CAESAR II is arguably the industry leading software for pipe stress analysis, CAESAR II is very user friendly, and can analyze piping systems situated onshore and offshore, including floating FPSO units. Stress analysis with CAESAR II ensures complex piping systems are designed to international codes and standards. CAESAR II has the capabilities for the following analyses; static structural analysis (including thermal expansion), dynamic analysis, wind & wave analysis, seismic earthquake analysis, support settlement analysis, hog/sag and structural displacement analysis, fatigue analysis, and can be adapted for offshore blast analysis.

About the Training

This training is designed to provide the engineering background of analyzing piping systems on an offshore floating system, particularly, the Floating Production, Storage, and Offloading (FPSO) Unit. The most peculiar sources of overstress in an FPSO are the hog/sag displacements as a result of the ship-vessel accelerations due to wave actions and loading/unloading scenarios.
This training will provide an in-sight to the FPSO piping stress design philosophies and considerations, understanding of the various load cases, hands-on techniques to solving various stress issues, and general stress analysis report presentation.
At the conclusion of this training, attendees should be able to use CAESAR IIto analyze any piping system on an FPSO; model building, including as inputs the various hog/sag/structural displacements and blast load considerations.

Key Learning Areas

• Overview of FPSO piping stress design considerations, sources of overstress, load cases to be considered.
• Using CAESAR II for model building; input generation.
• Building load cases for analysis
• Stress analysis and post-processing
• Equipment Nozzle loads check, Flange leakage check, Modal analysis check, supports loads check
• Stress analysis report presentation.

Course Outline

• Day One;
– General Introduction and overview of FPSO design considerations
– General overview of pipe stress analysis.
– Introduction to CAESAR II for pipe stress analysis

• Day Two;
– Building piping model for stress analysis
– System error checking and load case generation.
– Running stress analysis and post processing.

• Day Three;
– Load case review; hog, sag, racking, structural displacements.
– Load case review; wind and blast loads.
– Load case review; fatigue analysis

• Day Four;
– Equipment Nozzle Load Check; API Pumps, Air coolers, Compressors, Vessels etc.
– Flange Leakage verification; equivalent pressure method, ASME VIII, etc.
– Modal Analysis; check for minimum natural frequency.

• Day Five;
– Structural supports loads check and verification
– Revision
– Q & A and feedback

Who should attend this training?

This training is most appropriate for engineers eager to improve their knowledge and widen their job scope in pipe stress analysis;
– Pipe Stress Engineers
– Piping and Layout Engineers and Designers
– Mechanical Engineers (including fresh graduates)
– Offshore Structural Engineers
– FPSO Project Engineers


About the trainer

picEngr. (COREN), M.Sc. (Subsea), B.Eng. (Mechanical)
Abdulwasiu has been involved in pipe stress analysis and caesar II training for about 5 years with the passion for improving the local capacity in pipe stress engineering.
Abdulwasiu was trained in Europe (Italy) and he has over 8 years hands-on experience in pipe stress analysis, he gained his experience working on major oil & gas projects, among them are; GNL-Arzew Project (Italy), OML-58 Pipeline project (Nigeria), Northern Option Pipeline, NOPL Project (Nigeria), Southern Swamp & Associated Gas, SSAGS project (Nigeria), and more recently the EGINA FPSO detailed engineering project (Nigeria).
Abdulwasiu is a COREN certified engineer and a member of the Nigerian Society of Engineers. He holds a masters’ degree in Subsea Engineering from the University of Aberdeen, scotland and a bachelors’ degree in Mechanical Engineering from the Ahmadu Bello University, zaria.
Abdulwasiu is also an experienced user of the finite element analyses software; Abaqus, FEPipe/NozzlePro. As a subsea engineer, he also uses AutoPipe, and OrcaFlex for static/dynamic analyses of offshore subsea risers and mooring systems.

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