functionalsafetyassessment

Mini-FSA stage 3 equipment for an SPS

jorgemartiresFunctional safety, Safety and reliability engineering

MAR Consulting performed a functional safety assessment (FSA) stage 3 for an engineering contractor and equipment supplier to a subsea production system (SPS). The SPS will be installed and operated in the Norwegian Continental Shelf (NCS). The equipment designed by the engineering company constituted the boundary for the FSA. The equipment is similar to the SPS currently in production in the tie-in field. Hence, the FSA focused mainly on installation, commissioning, and validation activities. MAR Consulting acted as an independent assessor to the project. The objectives were to ensure the equipment is fit for the safety instrumented functions; and is […]

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FSA stage 2 of SPS (subsea production system)

jorgemartiresFunctional safety, Safety and reliability engineering

MAR Consulting performed a functional safety assessment (FSA) stage 2 for the operator of a subsea production system (SPS). The SPS will be installed and operated in the Norwegian Continental Shelf (NCS). The FSA also included the SIS lifecycle phases typically assessed in an FSA stage 1. The scope was the subsea development design and boundaries towards the topside on the host platform. The scope of the assessment excluded topside tie-in modifications. MAR Consulting acted as an independent assessor to ensure the design of the SIS meets the required risk reduction and is in compliance with the standards, Norwegian rules, […]

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FSA stage 3 – artificial lift modification project

jorgemartiresFunctional safety, Safety and reliability engineering

The main objective of a functional safety assessment (FSA) is to demonstrate compliance with related IEC functional safety standards through an independent assessment of the development process. Hence, the FSA process is a fundamental tool to ensure that the Safety Instrumented System (SIS) fulfills its requirements as an active barrier to reduce the risk to acceptable levels. At least one FSA is typically required during a project phase. Nevertheless, it is highly recommended to perform at least 2 FSAs in order to anticipate potential non-conformances in due time. The FSA team shall have some degree of independence to the project […]

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FSA stage 1 of subsea well intervention system

jorgemartiresFunctional safety, Subsea engineering

MAR consulting AS performed a functional safety assessment (FSA) stage 1 of a subsea riser less well intervention system. The system will have two SIL2 safety instrumented functions (SIF), based on the Norwegian Oil and Gas Association (guideline 070) and IEC standards (61508 and 61511): One emergency shutdown (ESD); One emergency quick disconnect (EQD). Following IEC 61508/61511 safety lifecycle, stage 1 covered: Hazard analysis; Allocation of safety functions to protection layers; Initial version of safety requirement specifications (SRS); Management of functional safety and verification and validation. Documentation was readily available to demonstrate compliance with functional safety requirements at this stage of […]

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FSA of gas lift HIPS modifications on North Sea platform

jorgemartiresFunctional safety, Safety and reliability engineering

MAR Consulting performed a functional safety assessment (FSA) of a modification project in a North Sea platform. The modification consisted of changes to the high integrity (pressure) protection system (HIPS) and emergency shutdown system (ESD), due to re-routing of gas lift and export pipelines. Safety instrumented functions (SIFs) were modified in the mentioned safety instrumented systems (SIS). The scope of the FSA stage 1 was to validate the initial phases of the project safety lifecycle as per IEC61511.  Namely, phase 1 to 3 (from hazard analysis to initial safety requirements specification) and phase 9 to 11 related to soft requirements […]

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