10th Keppel Offshore & Marine Lecture

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The Brazilian oil company PETROBRAS has been a pioneer in deep water oil production systems that broke several world records. The recent discovery of giant oil and gas fields in still deeper water, and under the salt rock layer (Pre-Salt), created several technological challenges to produce oil and gas in ultra deep water (more than 3000m).

PETROBRAS created a research network to develop several new technologies related to computational mechanics to reach the oil production in the ultra deep water. Besides ultra deep water subsea facilities developments, there are several challenges in the Naval Architecture and Ocean Engineering fields, among them mooring and positioning systems, riser technology, installation & conceptions of the floating production systems, etc.

The numerical simulator called the Numerical Offshore Tank, installed at Polytechnic School of University of São Paulo (USP), is one of these developments, and takes into account almost all the physical phenomena acting on the floating bodies and mooring and risers lines. Since full nonlinear solutions are not available, several numerical, empirical and analytical models are being considered and integrated into the numerical simulator.

For those purposes, a physicalOcean Basin called the Hydrodynamic Calibration Tank was built in the same location to provide complementary solutions for numerical simulator almost in real time. The time domain potential problem is solved for wave forces acting on the bodies, and empirical & CFD models are used to simulate current and wind forces, sloshing, etc. A finite-element model with more realistic hydrodynamic force models is used to represent mooring and riser lines.

Several floating production systems are combinations of two or more floating bodies. In this case, the interaction between two bodies should be considered in the dynamic behavior of the total systems. Another important feature is the visualization of the results of the simulation tests. The entire 3D view of the system is presented in the Virtual Reality room with stereoscopic projection of the Numerical Tank Laboratory.

The 10th KOM Lecture will be delivered by Professor Kazuo Nishimoto, Head, Department of Naval Architecture & Ocean Engineering, Polytechnic School of University of São Paulo, Brazil.

For online registration, please click HERE.

Additional Details

Contact Person - Ms Norela Buang

Contact Number - 6516 4314

Organizer - Keppel Offshore & Marine (KOM) and the Centre for Offshore Research & Engineering (CORE)


Date And Time

31 Oct 2012 @ 06:30 PM

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