Safety Integrity Level (SIL)
Safety Integrity Level (SIL) is an analysis or measurement of performance required for a Safety Instrumented Function (SIF) to maintain or achieve a safe state. At Velosi, we understand that it is crucial to perform a statistical measurement of how likely a process or a system is to be operational and ready to serve the function for which it is intended, including the calculated time to its likelihood of failure. Our uniquely designed SIL study services comply with global standards – IEC-61508, IEC-61511 and ISA TR 84.00.02 – to ensure the safe and reliable operation of the plant.
SIL is performed for the Safety Instrumented Systems (SIS). A Safety Instrumented System is for the protection of equipment consisted of Initiator, Logic Solver and Final Elements. A specific reliability is required from these components depending on the risk that the SIS is to reduce. SIL is the statistical representation of the reliability of the SIS (safety instrumented system), when a process demand occur.
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SIL Benefits
Effectively manages safety-critical equipment.
Prevents or mitigates the consequences which can result in mishaps like loss of life, personnel injury, equipment damage or loss of production.
SIL Deliverables
SIL Methodology
SIL Classification Study
SIL Verification Study
Safety Requirement Specification (SRS)
Safety Life Cycle Document
SIL Software
Prioritize, Redefine Asset Integrity with our extensive VAIL- PHA® Software
VAIL- PHA® is Velosi’s proprietary software and is built to execute all stages of SIL Classification, SIL Verification and preparation of Safety Requirement Specifications (SRS). The software also supports testing interval and Spurious Trip Rate (STR) calculations of SIFs.
Case Studies
Insights
Our Experiences
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SIL Determination Study
PENSPEN Limited
Thailand
February 2011
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SIL Study for Provision of Maintenance Optimization Program (MOP) as part of Continuous Improvement Plan (CIP) for Asset Integrity Management (AIM) System as FPSO Bunga Kertas
MISC Offshore Floating Terminals (L) Limited
Malaysia
July 2013
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Safety Integrity Level (SIL) Study as Part of Provision of Asset & Operation Integrity Services
Kebabangan Petroleum Operating Company (KPOC)
Malaysia
May 2014
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Safety Integrity Level (SIL) Study for Single Wellhead Platforms EB-1, EB-4 & EB-8
Bunduq Company Limited
Abu Dhabi, UAE
April 2014