BOW-TIE ANALYSIS :THE MODERN, FAST AND EASY TO USE RISK ANALYSIS METHODOLOGY
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INTRODUCTION
Bowtie method of analysis is a qualitative analysis incorporating management system techniques. The bowtie has become popular as a structured method to assess risk where a quantitive approach is not possible or desirable. The success of the diagram is that it is simple and easy for the non- specialist to understand. The idea is a simple one of combining the cause (fault tree) and the consequence (event tree). When the fault tree is drawn on the left hand side and the event tree is drawn on the right hand side with the hazard drawn as a “knot” in the middle the diagram looks a bit like a bowtie as shown.
In this course we will demonstrate the risk-based approach in the Oil & Gas Industry Projects and will explore how the bow-tie model would fit in the risk management process for upstream, Midstream and downstream projects and facilities, and it shares a representative Bow-Tie case study application in making engineering controls operational.
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COURSE OBJECTIVES
At the end of this course you will be able to:
- Reducing risk to ALARP: Risk assessment process, as low as Reasonably Practicable concept, Leadership and culture.
- Assuring plant performance: Safety critical elements and performance standards, Process safety performance indicators, Verification schemes.
- Assuring people performance: Safety critical roles & competencies, Human factors.
- Preventing major incidents by managing barriers: Understanding the causes of major incidents using Bow-Tie models of risk management
- Assuring processes performance: Process safety management framework, Audit and management review.
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COURSE AUDIENCE
This course is made for
- Plant Shutdown
- Plant Supervisor
- Power Distribution
- Power Plant Manager
- Process safety engineer
- Gasoline blender engineer
- Lab supervisor
- Supply chain engineer
- Distillates analyst
- Models engineer
- Process design
- Unit Operator
- Environmental
- Chemical Operator
- Chemical Plant Operator
- Chemical Process Technician
- Control Room Supervisor
- Gas Plant Process Operator
- Gas Production Operator
- Gas Terminal Operations and Storage
- Gathering Pipeline engineer
- Oil Terminal / Storage engineer
- Pipeline Maintenance / Equipment / Compliance / Repair
- Pipeline Testing / Technician / Supervisor / Safety
- Plant Equipment Operator
- Plant Operations Technician
- Process Supervisor
- Refinery Operations Technician / Manager
- Terminal Operator / Manager
- Utilities Operator
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COURSE OUTLINE
Day One
Trends in global risk management standardization
- Approaches to Risk Assessment
- Qualitative (Q), in which frequency and severity are determined purely qualitatively.
- Semi-quantitative (SQ), in which frequency and severity are approximately quantified within ranges.
- Quantified risk assessment (QRA), in which full quantification occurs
Day Two
Guidance on choice of risk assessment approach
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- Starting point for risk assessment approach
- Risk assessment as a function of risk level and complexity
- What is hazard,
- sources of risk assessment uncertainty
- Risk management process
- identify
- evaluate
- analyze
- manage
Day Three
Intolerability of risks
- Risk estimation and ranking of risks
- Which risks have to be managed?
- cost benefit analysis (CBA)
- Bowtie Definitions and Nomenclature
- Why Bow-Ties?
- Bow-tie terminology
- The bowtie process
- The Hazard(top) and the Event to be prevented
- The Threats that could cause the event to occur
- The Consequences of the event occurring with the assessed risk
- The Barrier Controls to prevent the event occurring
- The Recovery Controls to mitigate against the consequences
- The items that will cause a Control to fail
- The Barriers for the Threats to the Controls
- Bow-Tie Analysis Reporting
Day Four
The Principles of the Bowtie Methodology
- Benefits of the Bowtie technique
- Constructing Bowtie Models
- Bow-tie diagram(s)
- Where do bow-tie diagrams fit with Oil & Gas industry projects
- How can bow-tie diagrams contribute
- Data and information collection for Bow-Tie Analysis?
- Understand risk control systems, tools and equipment
- Combined control effectiveness
- Management of controls using Bow-Tie Analysis
- Categories controls by type
- Categories controls by effect
- Categories controls by code
- Cost of controls
- Tasks of control
- Responsible Parties
Day Five
Performance standards and procedures
- Key performance indicators calculation using bow-tie analysis
- relationship of risk assessment with Safety Management System and Bow –Tie Analysis
- How do we know if we have enough controls
- Determining that risk has been reduced alarp
- Lessons learned
- Review Checklist for bow-tie analysis
- Computer Tools for bow-tie analysis
- Case Studies I, II, III, Onshore, Up-stream, Mid-stream and Down-stream
- Case Studies I, II, III, Offshore Up-stream, Mid-stream
