BOP FMECA update to API S53 5th Edition

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 […]

Functional safety specialist LNG project in Germany

MAR Consulting will support an Engineering, Procurement, and Construction (EPC) contractor for a Liquified Natural Gas (LNG) production site in Germany. The position is functional safety specialist engineer. The plant will receive bio-methane of controlled origin directly from the gas distribution network. Downstream, the plant will process the gas to supply heavy-duty transport across the country. The project is currently in its initial phase. Hence, MAR Consulting will provide expert knowledge in all phases of the LNG project. Until final commissioning and delivery to the operator. Work tasks are mainly preparation of main SIL related documentation. Such as SRS, SIL […]

EHAZOP wind power onshore station

MAR Consulting performed an Electrical Hazard and Operability (EHAZOP) analysis of an electrical onshore station for a major OEM. The station receives power generated from offshore wind turbines (North Sea). The project was in the basic design phase, entering detailed design. Objectives of the EHAZOP The objectives were to: Evaluate the electric design with regards to safety and operability to avoid accidents and incidents; Ensure that design is fit for purpose and provides sufficient reliability, availability, and maintainability; Identify areas of improvement. Scope of the EHAZOP for wind power onshore station The E-HAZOP covered the high-power transmission and auxiliary systems. […]

Electrical SAFOP E-HAZOP LNG project

MAR Consulting AS facilitated online a 7-day electrical safety and operability (SAFOP / E-HAZOP) analysis for a new liquified natural gas (LNG) development in the USA. SAFOP is also often referred to as an electrical hazard and operability (E-HAZOP) analysis. However, besides the technical system operability study, it can also include a more classical hazard identification (HAZID) and an operator task analysis. In this project, the client required system operability and a HAZID to identify potential hazards on the electrical design of the LNG plant. An operator task analysis was not included since the project was just entering the detailed […]

FMEDA Deepwater drilling blow-out preventer

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 […]

EHAZOP offshore wind power transmission platform

MAR Consulting performed an Electrical Hazard and Operability (EHAZOP) analysis of an offshore wind power transmission platform. The platform receives AC power generated by wind turbines and distributes it to shore via a High Voltage DC link. Objectives of the EHAZOP The main objectives were to: Evaluate the electric design with regards to safety and operability to avoid accidents and incidents; Ensure that design is fit for purpose and provides sufficient reliability, availability, and maintainability; Identify areas of improvement. Scope of the EHAZOP for offshore wind power platform The E-HAZOP covered the high-power transmission systems: Gas Insulated Switchgears (GIS), transformer, […]

Communication link design based on availability

MAR Consulting assisted a client in evaluating (satellite) communication link design solutions from operability, availability, and cost stand-point. The services of the communication link between the unmanned surface vessel (USV) are: Transfer payload data generated during seabed surveys or subsea inspections; Control and operate the USV, in emergency situations; Control and operate the unmanned launch and recovery system, in emergency situations; Control and operate the autonomous underwater vehicles, in emergency situations. The different services listed above have different requirements, such as data transfer capability and latency. MAR Consulting proposed several options to fulfill these operational requirements. We focused particularly on […]

FMECA BOP subsea drilling safety system

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 […]

FTA of subsea BOP control and safety system

MAR Consulting developed a Fault Tree (FT) and Analysis (FTA) on failures of subsea Blow-Out Preventer (BOP) components, equipment, and systems. The probabilistic study made use of the developed fault tree and industry reported failure data (JIP RapidS53). The failure data used was collected in 2017-2018 from drilling rigs with BOP systems operating in the Gulf of Mexico. The main objective of the FTA of the subsea BOP was to develop a qualitative fault tree and use it to estimate the probability of the BOP system being unable to secure and seal the well (top event). The output of the […]

PFD overpressure protection SIF on production header

MAR Consulting supported performing and documenting a Probability of Failure on Demand (PFD) calculation. Due to the addition of new wells to the offshore producing platform in the Norwegian Continental Shelf (NCS), an hazard analysis identified a potential overpressure scenario. The production header has mechanical protection (relief valves) and a Safety Instrumented Function as a redundant barrier. Hence, MAR Consulting calculated the average PFD for this low demand Safety Instrumented Function (SIF). The PFD, when compared to the required risk reduction for this scenario, is acceptable for a number of new wells.