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DNV launches software for offshore risk analysis

09th May 2013

DNV Software unveils Safeti Offshore, a quantitative risk analysis tool which can assess offshore risks

DNV launches software for offshore risk analysis
Safeti Offshore can address key questions such as design layout alternatives, fire and blast protection, escape and evacuation measures and other potential risk reduction measures

DNV Software has released Safeti Offshore, a new software tool which can enhance offshore quantitative risk analysis (QRA) and evaluate the full range of potential hazards and associated risks, the classification society said in a written statement on Tuesday.

“Safeti Offshore has been designed and developed specifically to support state-of-the-art, complex offshore QRA,” says DNV software director of Operations Risk and Reliability, Nic Cavanagh. 

“All credible hydrocarbon accident scenarios are considered, including fire, explosion, toxics and smoke. In addition, detailed escalation analysis is provided to model potential domino effects and evolving safety function impairment,” he says.

Typical offshore QRA risk metrics, such as potential loss of life (PLL), are summarised in a database allowing flexible reporting and charting. An interactive event tree allows navigation and drill-down on the detailed risk results. In addition, a 3D visual representation of the facility allows the key consequence and risk results to be viewed in context. In this way, Safeti Offshore can address key questions such as design layout alternatives, fire and blast protection, escape and evacuation measures and other potential risk reduction measures.

The QRA of offshore installations is a complex process and there are specific challenges resulting from congested layouts and limited separation of equipment. A spectrum of analysis methods exists, ranging from spread-sheets – with inherent validation and traceability problems – through to detailed and expensive computational fluid dynamics (CFD) simulations typically addressing specific issues rather than assessing broader risks.