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Subsea production system vibration analysis complete - 12 May 2017

Subsea production system vibration analysis complete

Norton Straw's engineering and analysis team recently completed a major project of Flow-Induced Vibration (FIV) and Vortex Induced Vibration (VIV) analysis for OneSubsea on Mellitah Oil & Gas' Bahr Essalam Phase 2 project in Libya. Our fluid and structural dynamics experts assessed subsea production system equipment on behalf of OneSubsea, and were able to demonstrate that these components should not be at risk to these forms of vibration.

Vibrations can be caused by turbulence in the flow within the subsea equipment (FIV) or flow around the system piping (VIV) that can cause integrity issues and even failure.  To determine whether a subsea system is vulnerable to these phenomena, it is necessary to build a model to predict the natural frequencies of the system and demonstrate that the flow turbulence will not excite these frequencies. 

Dr Matt Straw, Managing Director of Norton Straw, commented "We're very pleased to be able to undertake engineering analyses like these to support OneSubsea's design process.  In some cases, we have to apply advanced Computational Fluid Dynamics (CFD) and frequency domain Finite Element (FE) approaches, but the OneSubsea designs were able to pass the assessment with minimal modification.  We look forward to continuing our work and research into advanced dynamic analysis techniques, and to working further with OneSubsea".

For more information on Norton Straw's capability in vibration, fluid mechanics or structural design and analysis do not hesitate to contact Simon Rees, Projects Director on simon.rees@nortonstraw.com or call us on +44 1332 34 88 44.

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