Failure mode analysis

LOPA module integration FPSO

jorgemartiresFacilitation, Failure mode analysis, Functional safety, Safety and reliability engineering

MAR Consulting was contracted to support with a layers of protection analysis (LOPA) of one module integration in a floating production, storage and offloading (FPSO) vessel. The project may require additional barriers to protect the new equipment to be installed. These barriers can be, among other options, safety instrumented functions (SIF). LOPA is one method to allocate safety integrity levels (SIL) to SIFs if additional risk reduction is necessary. The objectives of the LOPA/ SIL allocation were to: Verify if the existing barriers are sufficient, and the risk level is sufficiently reduced such that the tolerability criteria is achieved to […]

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BOP FMECA update to API S53 5th Edition

jorgemartiresFailure mode analysis, Safety and reliability engineering, Subsea engineering

MAR Consulting AS updated a Failure Modes, Effect, Criticality and Diagnostics Analysis (FMECA / FMEDA) of the hydraulic control and safety systems of a major drilling contractor’s subsea drilling BOP. MAR Consulting had performed the previous original FMECA / FMEDA based on API S53 4th Edition and the US Code of Federal Regulations (CFR). The new rig contract requires compliance with API S53 5th Edition and therefore warranted the update. And it is outside the Gulf of Mexico where the US CFRs are not applicable. This work is part of the partnership to develop a BOP digital twin and failure […]

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FMEDA Deepwater drilling blow-out preventer

jorgemartiresElectrical engineering, Failure mode analysis, Safety and reliability engineering, Subsea engineering

MAR Consulting facilitated and documented a Failure Modes, Effect, Criticality and Diagnostics Analysis (FMECA / FMEDA) of a deepwater drilling blow-out preventer of a major drilling contractor’s subsea drilling BOP. This work is part of an extended partnership to to cover the entire fleet of drilling rigs and ships. Description of projects MAR Consulting has been involved as part of this partnership: FMECA BOP subsea drilling safety system · MAR Consulting; FMECA / FMEDA subsea drilling BOP (electrical and hydraulic systems) · MAR Consulting; FMECA of redundant subsea BOP deadman-autoshear · MAR Consulting; FMEA of electrical and control systems in […]

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FMECA BOP subsea drilling safety system

jorgemartiresFailure mode analysis, Safety and reliability engineering, Subsea engineering

MAR Consulting facilitated and documented a Failure Modes, Effect, Criticality and Diagnostics Analysis (FMECA / FMEDA) of the hydraulic control and safety systems of a major drilling contractor’s subsea drilling BOP. This work is part of an extended partnership to to cover the entire fleet of drilling rigs and ships. Description of projects MAR Consulting has been involved as part of this partnership: FMECA / FMEDA subsea drilling BOP (electrical and hydraulic systems) · MAR Consulting; FMEA of electrical and control systems in subsea BOP · MAR Consulting; FMECA of redundant subsea BOP deadman-autoshear · MAR Consulting; FMECA electrical and […]

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FMECA / FMEDA subsea drilling BOP (electrical and hydraulic systems)

jorgemartiresElectrical engineering, Failure mode analysis, Safety and reliability engineering, Subsea engineering

MAR Consulting facilitated and documented a Failure Modes, Effect, Criticality and Diagnostics Analysis (FMECA / FMEDA) of the electrical and hydraulic control and safety systems of a major drilling contractor’s subsea drilling BOP. This work is part of an extended partnership to deliver such a product to the entire fleet of drilling rigs and ships. Description of projects MAR Consulting has been involved as part of this partnership: FMEA of electrical and control systems in subsea BOP · MAR Consulting; FMECA of redundant subsea BOP deadman-autoshear · MAR Consulting; FMECA electrical and control systems in subsea BOP · MAR Consulting; […]

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FMECA of topside BOP and control system

jorgemartiresElectrical engineering, Failure mode analysis, Functional safety, Reliability, availability and maintainability analysis, Safety and reliability engineering

Introduction MAR Consulting facilitated and documented a Failure Modes, Effects and Criticality Analysis (FMECA) for a major operator, of a hydraulic and pneumatic control system in a topside drilling Blow-Out Preventer (BOP). The FMECA was part of the initiative to re-start drilling in a field in the Norwegian Continental Shelf (NCS). The BOP OEM updated the BOP with a shear boost upgrade, PLC upgrade, auxiliary readback pressure panels, and Managed Pressure Drilling (MPD) flowline function addition. Objective In addition to the failure analysis, the Safety Analysis Report (SAR) used the FMECA outcome to comply with functional safety rules and regulations […]

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FMECA of an unmanned system for subsea inspections and seabed surveys

jorgemartiresFailure mode analysis, Safety and reliability engineering

Introduction and objectives of the FMECA of an unmanned system for subsea inspections MAR Consulting performed a Failure Modes, Effects and Criticality Analysis (FMECA) of an unmanned system for subsea inspections and seabed surveys, as part of the technology qualification process. The main objectives of the FMECA were to: Identify failure modes of the different sub-systems/components in the system with a technology readiness level (TRL) lower than 5; Evaluate the criticality of each failure on the system; Provide the basis for planning of the technology qualification activities; Provide input for the testing program; Provide input for the selection of components […]

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FMEA of electrical and control systems in subsea BOP

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

MAR Consulting facilitated and documented an FMEA of electrical and control systems of a major drilling contractor’s subsea BOP. Purpose of the FMEA MAR Consulting facilitated the failure mode, effects and criticality analysis (FMECA) based on the methodology described on international standard IEC60812. Since it also included analysis of diagnostic capabilities, it could also go by the FMEDA designation (failure mode, effects, and diagnostic analysis). However, the purpose was significantly different than most FMEAs. Typically, an FMEA evaluates a design with the objective to unveil its weaknesses (and strengths). As a result, this information can form the basis of a […]

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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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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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