4D Training & Consultancy

Oil and Gas Technical Trainings

Functional Safety and Safety Instrumented Systems Lifecycle

Apply the complete SIS lifecycle from hazard allocation and SIL determination through design, proof testing, operation and change control.

5 DaysIn-house, online, or customized deliveryCorporate teams and professional groupsLevel: Advanced

Overview

Practical learning for workplace transfer.

Apply the complete SIS lifecycle from hazard allocation and SIL determination through design, proof testing, operation and change control. Participants work through five connected modules using discipline-specific evidence, calculations and an applied decision case.

Prerequisites

Prior exposure to process operations, PFDs and engineering calculations is recommended.

Objectives

  • Interpret functional-safety lifecycle and governance using traceable evidence and an explicit decision criterion.
  • Calculate hazard allocation and sil determination using traceable evidence and an explicit decision criterion.
  • Diagnose safety requirements and design verification using traceable evidence and an explicit decision criterion.
  • Evaluate proof testing, bypasses and operational discipline using traceable evidence and an explicit decision criterion.
  • Deliver sis lifecycle assurance workshop using traceable evidence and an explicit decision criterion.

Target audience

  • Process, operations and process-safety engineers
  • Control, inspection and technical-assurance specialists
  • Technical assurance, data and reliability practitioners
  • Supervisors and discipline leads responsible for operational decisions

Program outline

A clear structure for the learning journey.

Program outline

Outline points are grouped in one designed block instead of being treated as separate module cards.

Module 1: Functional-safety lifecycle and governance

Interpret the source measurements, engineering assumptions and acceptance criteria governing Functional-safety lifecycle and governance

Calculate or model the key performance quantities for Functional-safety lifecycle and governance and reconcile the result against field evidence

Complete a Functional Safety and Safety Instrumented Systems Lifecycle exercise that converts Functional-safety lifecycle and governance findings into a documented technical decision

Module 2: Hazard allocation and SIL determination

Calculate or model the key performance quantities for Hazard allocation and SIL determination and reconcile the result against field evidence

Diagnose failure modes, uncertainty and operating limits associated with Hazard allocation and SIL determination

Build an assurance checklist, action owner and review trigger for Hazard allocation and SIL determination

Module 3: Safety requirements and design verification

Diagnose failure modes, uncertainty and operating limits associated with Safety requirements and design verification

Complete a Functional Safety and Safety Instrumented Systems Lifecycle exercise that converts Safety requirements and design verification findings into a documented technical decision

Interpret the source measurements, engineering assumptions and acceptance criteria governing Safety requirements and design verification

Module 4: Proof testing, bypasses and operational discipline

Complete a Functional Safety and Safety Instrumented Systems Lifecycle exercise that converts Proof testing, bypasses and operational discipline findings into a documented technical decision

Build an assurance checklist, action owner and review trigger for Proof testing, bypasses and operational discipline

Calculate or model the key performance quantities for Proof testing, bypasses and operational discipline and reconcile the result against field evidence

Module 5: SIS lifecycle assurance workshop

Build an assurance checklist, action owner and review trigger for SIS lifecycle assurance workshop

Interpret the source measurements, engineering assumptions and acceptance criteria governing SIS lifecycle assurance workshop

Diagnose failure modes, uncertainty and operating limits associated with SIS lifecycle assurance workshop

Materials provided

  • Course-specific technical workbook
  • Engineering datasets and diagnostic exercises
  • Decision templates and quality checklists
  • Applied capstone case
  • 4D Certificate of Completion

Training Options

Programs can be delivered in-house, online, or in a blended format depending on your team's schedule, location, and learning objectives. When an external certificate or exam is included, certification rules and fees remain under the relevant awarding body's policies, while 4D provides the training and preparation support.

Why choose 4D

4D adapts the technical depth, evidence, calculations and capstone decisions to the client's assets, operating context and participant responsibilities.

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