subsea

FMECA of redundant subsea BOP deadman-autoshear

jorgemartiresFailure mode analysis, Safety and reliability engineering, Subsea engineering

MAR Consulting facilitated and documented a failure mode, effects and criticality analysis (FMECA) on a new hydraulic solution for a deadman-autoshear system of a subsea blow-out preventer (BOP). To improve the reliability of the safety functions provided by the deadman-autoshear system, a solution with additional redundancy to critical components has been proposed. This solution was analyzed following IEC60812 methodology before it is included in the BOP. The main purpose was to understand the true benefits of such a solution from a safety and reliability perspective.

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FSA stage 2 of subsea production system

jorgemartiresFunctional safety, Safety and reliability engineering

MAR Consulting will perfom a functional safety assessment (FSA) stage 2 of a subsea production system (SPS) bound to be installed and operate in the Norwegian Continental Shelf (NCS). The end client is the  company engineering the SPS. The contract is in effect immediately. FSA stage 2 focus on the design and engineering of the safety instrumented systems (SIS). In this case, there are two autonomous independent SIS aiming at reducing risks to acceptable levels. Furthermore, MAR Consulting will ensure that the assumptions and actions identified on the previous FSA (stage 1) were verified and acted upon. In addition, the client requested […]

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FMECA electrical and control systems in subsea BOP

jorgemartiresElectrical engineering, Reliability, availability and maintainability analysis, Safety and reliability engineering, Subsea engineering

MAR Consulting facilitated and documented an FMECA of electrical and control systems of a major drilling contractor’s subsea BOP. Purpose of the FMECA MAR Consulting facilitated the failure mode, effects and criticality analysis (FMECA) based on the methodology described on international standard IEC60812. However, the purpose was significantly different than most FMECA workshops. Typically, external resources perform an FMECA to evaluate a design with the objective to unveil its weaknesses (and strengths). As a result, this information can form the basis of a cost-benefit analysis for design improvement opportunities. In this project, however, in addition to the above, the drilling contractor/operator will use […]

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FMECA of blow-out preventer hydraulic system

jorgemartiresFailure mode analysis, Safety and reliability engineering, Subsea engineering

MAR Consulting AS facilitated and documented an extensive failure mode, effects and criticality analysis (FMECA) on the hydraulic system of a blow-out preventer (BOP). The methodology was based on IEC60812 but modified towards operability and functionality of the system in analysis. The main purpose was to utilize the experience and knowledge of the participants to produce ready-made in-service risk assessments of failures that can occur. All components and failure modes were systematically assessed during the 45-days workshop in Houston, USA. The resulting assessments are to be integrated into a built for purpose simulation software delivered by a third-party. The objective is to […]

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