The First 100 Days: Delivering Effective Process Safety Leadership on Joining a New Organisation
Ashley Hynds, DNV GL, UK 

Leaders critically impact safety culture and performance of their organisations through their actions and behaviours, and first impressions count.

Increasingly, professionals find themselves moving between employers, installations and roles in their careers, and have to quickly assimilate new knowledge.  This includes the hazards of the facilities they are responsible for, new safety management systems, and how best to work with new teams.

This presentation will describe the key elements of a “first 100 days plan,” as well as practical tools and approaches, to enable a newcomer to an area to quickly get up to speed with their process safety responsibilities.

The Human Element - How People Shape Safety
Jennifer Gilmour, Hawk Safety & Engineering, UK

This presentation explores how human behaviour, leadership, and organisational culture shape safety in high-hazard environments. Drawing on personal experience, it highlights the impact of safety in design, the influence of psychological safety and trust, and the risks of normalising unsafe practices. Delegates will gain practical insights into bridging the gap between procedures and real-world operations by integrating human factors early and fostering strong safety cultures. The session offers actionable takeaways for engineers, leaders, and safety professionals aiming to build safer, more resilient operations through authentic engagement and a deeper understanding of the human element in risk management.

From Principles to Practice: Building a Competence Framework for Process Safety Leadership Insights from Regulatory Inspections and Industry Good Practice in the North Sea
Muhammad Ullah, Apache North Sea, UK

This paper presents a Process Safety Leadership (PSL) Competence Framework built from regulatory expectations, and inspections across 14 North Sea operators. It translates expectations into clearly defined Knowledge, Skills, and Behaviors (KSBs) across key leadership themes such as safety culture, risk management, and workforce engagement. Good practices were drawn from inspection findings and industry guidance, with further enrichment from IChemE Process Safety Competence Guidance and CCPS publication on Safety Culture. The framework provides a practical tool for operators, auditors, and consultants to evaluate and strengthen leadership competence in managing major hazards, supporting both positive safety culture and regulatory alignment.

Creating Partners in Safety with Contractors: Third Parties and Risk
Daryl Wake, DEKRA, UK

Contractor safety is often reduced to compliance, yet this falls short in today’s complex project environments. Creating Partners in Safety with Contractors challenges this mindset, presenting a partnership-based approach that embeds contractors into the fabric of safety culture and governance. Led by DEKRA’s Daryl Wake, the session introduces a six-point maturity model and practical tools—from shared KPIs to daily interface engagement—that foster accountability and trust. Attendees will learn how to reduce serious incident and fatality risks by elevating contractor relationships from oversight to strategic alignment, transforming safety into a shared organisational value across third-party networks.

LTS Futures: Development of Safe Hydrogen Pipeline Operational Procedures
Max Koronka, SGN, UK

The LTS Futures project, led by SGN, looks to repurpose a 30 km natural gas transmission pipeline to hydrogen for a live demonstration trial, which will inform the development of a methodology for repurposing the Local Transmission System to hydrogen.  The practical aspects of operating a hydrogen pipeline such as: maintenance, public acceptance, and adding new connections are to be investigated.  

The program includes significant offsite testing activities investigating the effect of hydrogen on the materials and operational activities. Two work packages have been completed and reported: ‘Venting and Flaring of Hydrogen Gas’ and ‘Hot Works on Live Hydrogen Pipelines’.

Hydrogen Integration in Legacy Gas Infrastructure: An Operator’s Insights on its Pathway to Decarbonisation and Energy Security
Wayne Mullins, Gas Networks Ireland, Ireland

Gas Networks Ireland is advancing the transition from natural gas to hydrogen by repurposing existing infrastructure. This approach offers cost and time efficiencies but presents challenges in material compatibility, safety, and regulatory alignment. Key risks include hydrogen embrittlement, leakage, and altered flow dynamics. Gas Networks Ireland is addressing these through engineering assessments, targeted material testing, and system modelling. This work supports Ireland’s decarbonisation goals and lays the groundwork for a hydrogen-ready energy network.

Fire Walls in Hydrogen Storage Facilities: Are They Making Things Worse?
Karina Almeida Lenero, Gexcon, UK

The objective of this presentation is to highlight potential issues when considering the use of fire walls in hydrogen-handling facilites as a mitigation measure against thermal radiation. Using FLACS-CFD simulations, several layouts of typical hydrogen storage areas were studied to understand the effect of the presence and geometry of fire walls and storage tank configurations on the air flow patterns, to identify areas where hydrogen could accumulate. The dispersion behaviour of different leaks was then simulated, allowing us to understand how the fire walls, tank geometry and inventory influence both the size and concentration of the flammable clouds.

Perimeter Walls and Pressure Waves: Design Considerations for Hydrogen Safety
Peter Johnson, Thorton Tomasetti, UK

Small-scale hydrogen production facilities are an emerging opportunity for project developers in progressing the energy transition. These non-COMAH facilities require production and storage of significant quantities of hydrogen on-site. Thornton Tomasetti has been conducting risk assessments and consequence modelling to support the safe design of these facilities. This paper focuses on the value of barrier walls placed around outdoor hydrogen inventories, the trade-offs in limiting the spread of flammable gas clouds or jet fires versus increased flammable gas volumes and potential for detonation. The work provides valuable insights for the safe design of small-scale hydrogen production facilities.

Learning from a Liquid Hammer Incident at Hasdrubal Terminal – A Case for Design and Operational Resilience
Firas Atitallah, Amilcar Petroleum Operations, Tunisia

This abstract examines a Category 1 process safety incident at BG Tunisia’s Hasdrubal Terminal, where a liquid hammer in the LT flare header caused significant equipment damage and a minor hydrocarbon release. Occurring during startup, the event was triggered by hot oil passing through a failed bursting disc into the flare system, followed by high-pressure gas release that led to hydraulic shock. Though no injuries occurred, the plant required a full shutdown for investigation, redesign, and recovery offering critical lessons in design integrity, barrier management, and operational readiness.

Management of Seeps and Leaks, Lessons Learnt
Matt Hastings, Ithaca Energy, UK

Proper management of seeps and leaks is an essential part of plant management, applicable to any industry, to reduce Process Safety risks and environmental damage.

The presentation will describe how leaks are managed in accordance with industry regulations and guidance such as "OGUK Supplementary Guidance on The Reporting of Hydrocarbon Releases, Issue 3 December 2015".

The presentation will cover the full "life cycle" of a leak, from initial discovery, investigation, estimation of leak rate, tagging, categorisation, reporting, additional mitigation, monitoring, repairs and close-out. Various Lessons Learnt and improvements will be suggested.

Shifting the Lens on LOPC: From Traditional Equipment Focused to Holistic Review, Data-Driven Process Safety Improvement
Vinta Kermala, bp Tangguh LNG Production, Indonesia

BP Tangguh LNG shifted its approach in reviewing Loss of Primary Containment (LOPC) data from an equipment-focused to a holistic review, used it as basis for process safety improvement. By analyzing multi-factor causes, such as OMS element, barrier family, activity patterns, and type of equipment, broader root causes of LOPC incidents are identified. Cross-functional stakeholders are invited in several focused group discussions. This collaborative and comprehensive process led to both tactical and strategic interventions, fostering ownership and strong commitment for follow up. The holistic review demonstrated that effective process safety improvements require comprehensive analysis and integrated stakeholder engagement.

TABIE: A New COMAH-compliant and Resource Efficient Incident Evaluation Tool
Dominic Furniss, Human Reliability Associates, UK

TABIE addresses a critical gap in COMAH compliance by implementing "human failure analysis in reverse." While regulations suggest incident investigations should mirror proactive approaches, effective methodologies have been lacking. TABIE uniquely applies the same analytical framework used in Safety Critical Task Analysis to incident investigation, creating an integrated system where proactive and reactive analyses strengthen each other. This approach enables validation of risk assessment assumptions, identification of both immediate and latent failures, prediction of recurrence likelihood, and evaluation of intervention effectiveness—all while maximizing operational efficiency by leveraging existing human factors frameworks.

Cumulative Risk in Action: A Process Safety Case Study from Onshore Oil & Gas Facility Operations
Humaid Al Bimani, Petroleum Development Oman (PDO), Oman

This case study from Petroleum Development Oman (PDO) showcases a practical approach to monitoring cumulative risk during the operate phase of onshore oil and gas facilities. By analysing trends in process safety indicators and linking them to risk assessments, PDO developed a scoring method to highlight where risk is building across assets. Using Power BI dashboards, teams can visualise risk levels, identify key contributors, and take proactive action. The approach enables better operational decisions, enhances barrier management, and supports a shift from reactive to predictive safety practices—using tools and data already available in most organisations.

Transforming HIPS Revalidation into a Lifecycle Safety Asset
Hamad Alsaqabi, Saudi Aramco, Saudi Arabia

This paper presents a structured, auditable High Integrity Protection System (HIPS) Revalidation Methodology applied across three major facilities covering 45 operational platforms. Developed in alignment with internal engineering standards and informed by HAZOP, LOPA, and FTA outcomes, the approach integrates modification tracking, digital traceability, competency assurance, and optimized testing frequency. Key findings include failure pattern identification, corrective actions on analogue input (SSD relay) issues, and reduced test intervals from quarterly to annual while maintaining compliance. The work highlights how structured revalidation supports safety, sustainability, and digitalization, offering practical tools applicable across industries managing complex safety instrumented functions.

Findings of the Energy Institutes Research into Virtual HAZOP Studies
Dr Stephen Bater, Energy Institute, UK

HAZOP (hazard and operability) studies are essential in ensuring process safety by identifying potential hazards and assessing operational risks. As a result of the COVID 19 pandemic and associated increase in working from home organisations started to innovate and introduced virtual and hybrid models for carrying out HAZOP studies. This, together with today’s global and technologically evolving environment, many organizations are shifting from traditional face-to-face (F2F) meetings toward using remote/virtual or hybrid formats. The surveys used in the research and report capture insights on virtual HAZOP studies.

Turning Static Bowtie Diagrams into Dynamic Tools for Risk Management
Joel Chacon , Eigen, UK

Traditional bowtie diagrams offer only high-level, static views of risk, limiting their value for real-time decision-making. By digitizing and integrating these diagrams into dynamic, graph-based data models, process engineers can monitor the live health of safety barriers. This approach enables detailed tracking of specific functions, such as alarm management, process surveillance, and operator competence, transforming bowties into powerful tools for proactive risk management. Linking these models with live data sources and existing systems improves visibility, speeds response, and enhances operational safety. This evolution allows bowties to move beyond compliance into predictive, data-driven safety management for modern industrial facilities.

Understanding How Industry Uses AI in HSE Regulated Sectors
Dr Colin Chambers, HSE, UK

The HSE Science Division has conducted research into artificial intelligence uses across industries under its regulatory purview. The study documented 247 AI use cases across 14 sectors.
Key AI applications include maintenance systems, health and safety management, equipment control, and occupational monitoring. Generative AI tools are widely used in risk assessment.
Potential risks identified include over-reliance on AI systems, workforce deskilling, assessment inaccuracies, and opaque decision-making processes.

The research enhances understanding of AI's transformative potential whilst emphasising the need for robust assurance frameworks. This will support HSE's regulatory approach development and provide valuable industry insights for safer AI implementation.

Implications of AI on Process Safety
Vira Jogia, VRJ Consultancy, UK

An overview of the IChemE PS framework and how it can be potentially impacted by AI. This framework was chosen as it provides a holistic view rather than a more detailed management system. This paper highlights some aspects to scrutinise when considering the use of AI from a process safety perspective.

Managing Autonomous Plants with Human-AI Partnerships
Dr Neil Renton, ORS Consulting, UK

Advances in neural networks and other AI technologies have enabled autonomous systems to manage safety-critical tasks in cars, marine, and aviation sectors. These developments present opportunities to enhance process plant operations, traditionally managed by human control room operators (CROs) via distributed control systems (DCS). With improved connectivity, remote operations are possible, and AI can assist or even replace some CRO functions. However, safe integration requires carefully designed Human-AI partnerships. Drawing on lessons from autonomous marine/aviation systems, the paper explores loosely-coupled collaborations between CROs and AI to improve safety, while highlighting regulatory and developmental challenges that must be addressed.

Artificial Intelligence for Plant Trip Investigations
Sanjay Varma, Adnoc, UAE

In the oil and gas industry, unplanned shutdowns or "trips" can lead to significant financial losses and safety hazards. Traditional trip investigation methods, such as manual data analysis and root cause analysis (RCA), are often labor-intensive and may not always identify the root cause effectively.

By integrating AI models with Sequence of Event SoE data from control system for rapid and accurate trip analysis.

The integration of AI with control system vendor software can further enhance predictive maintenance and real-time analysis model accuracy, identify common patterns, enhance plant engineering design, maintenance philosophies, and critical spares management.

Process Safety Leadership – A Successful Systems Approach
Peter Neal, Premier Safety Associates, UK

This presentation discusses key themes used to develop effective process safety leadership programs for operating organisations in the high-hazard sector. It recognises that process safety leadership is most effective when employing a humanistic approach to team dynamics in high-risk operations. High hazard organisations are looked at through the lens of complex systems where the safety is an emergent property of the multiple decisions by leaders within the system. This enables leaders to reflect on how best practices in HOP (human and organisational performance) can be used to build a successful organisation.

Safety Culture - Safety Leadership - Building a Strong Process Safety Culture: A Multifaceted Approach for Safety Towards Sustainability and Resilience
Vishvas More, Saudi Aramco, Saudi Arabia

Process safety is a critical aspect of any industrial operation, ensuring the protection of personnel, the environment, and assets. A strong process safety culture is essential to achieving and maintaining high levels of safety performance. This paper presents a multifaceted approach adopted by our organization to cultivate a robust process safety culture and leadership. 

Building a  process safety culture requires to addresses both organizational and individual factors. Implementing a comprehensive range of initiatives and continuously refining our strategies with strong safety leadership drive and employee empowerment to further enhance process safety and create a safer and more sustainable working environment.

Keeping it Safe Today & Tomorrow (KISTT): Promoting a “Safe to Say” Culture
Deema Khunda, National Grid, UK

Safety culture & leadership discussion

Innovative Mobile Ejector System for Efficient Flare Recovery in Offshore Well Operations
Ali Almonsoori, Adnoc, UAE

This project explores a mobile ejector-based vapor recovery unit for test separator boats, aimed at capturing and reusing flare gas from offshore wellhead towers during well unloading operations. Powered by produced oil, it operates without rotating equipment or external energy sources, reducing environmental impact. The VRU's modular design allows flexible deployment across various WHTs, enhancing Health, Safety, and Environment (HSE) performance. Preliminary analysis indicates significant flare gas recovery during high-GOR well tests, supporting ADNOC's decarbonization goals. Its mobility and compatibility with existing infrastructure make it ideal for offshore brownfield applications, addressing emissions in intermittent operations often missed by permanent systems.

Risk Assessment for Proposed CO2 Injection Platform
Andrew Benton, ESR Technology, UK

Use of CFD for Informed Decision Making for EER Provision on CO2 Injection Platforms
Stuart Hunter, Petrofac, UK

Carbon capture storage and sequestration (CCSS) projects raise a significant number of uncertainties regarding their safe design.  Once such uncertainty is Escape Evacuation and Rescue (EER) provision, in particular, for offshore platforms.

This paper details CFD analysis performed for a typical NUI platform as a basis for informing decision making for adequate EER provision.  It includes different platform configurations and mitigations which may be considered as part of the design to ameliorate the impact of the CO₂ hazard on personnel.

Consequence Assessment of Subsea Release Scenarios in CO2 Pipeline Transport
Federican Tamburini, University of Bologna, Italy

Effect of Fire Walls on Explosion Overpressures and Deflagration-to-Detonation Transition in Hydrogen Storage Facilities
Joe Butterworth, Gexcon, UK

Hydrogen Explosions: Is the Validation Domain for the Current CFD tools Representative of Real Events?
Prankul Middha, Abercus, UK

Improved Hydrogen Explosion Mdelling in EXSIM
Jamie Thompson, DNV GL, UK

Development of a Model for Unconfined Hydrogen Explosions
Niall Foster, DNV GL, UK

DNV has developed a model to predict the overpressure hazards from the delayed ignition of unconfined hydrogen releases, ranging from almost immediate ignitions to more conventional delayed ignitions. HOPPER (Hydrogen OverPressure Predictions from External Releases) was developed using experimental data from ignited quiescent hydrogen clouds with uniform concentration. The model was extended to non-uniform hydrogen clouds, such as those resulting from jetted releases of hydrogen and it has been validated against large-scale hydrogen jet experiments undertaken at the DNV Spadeadam Research and Testing facility. The model is applied to transmission pipes, distribution systems and installations.

GasPiRRaM: HSE's Gas Pipeline Decompression Model
Andrew Newton, HSE. UK

This paper introduces the Gas Pipeline Release Rate Model (GasPiRRaM) which has been developed to satisfy the HSE requirements for a model to predict the consequence of accidental pipeline failure. GasPiRRaM follows the PolyPiRRaM derivation but uses a numerical solution technique that enables its application to small holes.The model is verified to analytical solutions where it recovers the expected behaviour. A series of model inter-comparisons are presented as well as extensive validation to experimental data. No significant limitations of the GasPiRRaM model are identified and the model is shown to be suitable for the HSE's intended use case.  

Ammonia Pipeline Release Modelling
Paul Williamson, Thornton Tomasetti. UK

Consideration of the Effects of Dry Ice on the Cooling of Steel Structures When Impacted by Two-phase Jets of Carbon Dioxide
Gemma Tickle, ESR Technology.UK

Assessment of a Practical Methodology for the Venting of Carbon Dioxide at Varying Exit Velocities
Aftab Ramzan, Kent. UK

Kent will present the findings of varying the API recommended vent exit velocity (guidance based on hydrocarbon vents) to assess the applicability for CO2. The extent of dispersion will be determined using PHAST (free field modelling consequence analysis software).

The applicability of using PHAST will then be assessed by carrying out a Computational Fluid Dynamics (CFD) assessment, to determine if anticipated slumping effects are accurately modelled in PHAST and whether a factor to account for slumping needs to be applied during the vent design.

A Risk Analysis Framework for Evaluating the Safety, Reliability, and Economic Implications of Electrolysis for Hydrogen Production at Nuclear Power Plants (RAFELHyP): Overview and Quantitative Risk Assessment (QRA) Insights
Ahmad Al-Douri, University of Oklahoma, USA

This work summarizes the ongoing progress of a multi-year research project that seeks to: (1) examine how failure events at an electrolyzer impact the safe operation of a nuclear power plant by utilizing quantitative risk assessment (QRA) as the organizing principle, (2) develop a modular risk analysis framework that enables evaluating the safety, reliability and economic implications of upcoming deployments of electrolyzers for hydrogen production at nuclear power plants, and (3) implement the framework in conducting an integrated safety, reliability, and economic analysis of multiple plant configurations to provide detailed recommendations for plant protective features and layouts.  

Quantitative Risk Assessment of a Green Hydrogen Production Plant: Results from a Case Study
Federica Ricci, University of Bologna, Italy

Hydrogen Safety – Challenges in Managing Hydrogen Gas Dispersion
Nellya Serikova, Subsea7, France

Due to high range of hydrogen flammability limits, safety concerns do arise, particularly in the event of loss of primary containment. This paper has an objective to demonstrate the challenges in managing hydrogen gas dispersion and its safety aspects. Dispersion modelling results for hydrogen releases and its comparison with methane and ethylene presented in this work. More than 300 scenarios were modelled for hydrogen gas leaks using DNV PHAST software model.   

A Probabilistic Approach to LOPA – Incorporating Probability Distributions to Address Uncertainty
Matt Baggaley, Risktec, UK

Are Your SIS Performance Assumptions Realistic? Let's Find Out!
Iwan van Beurden, exida, USA

Safety Instrumented Function (SIF) design is based on performance requirements. During design, assumptions concerning SIF equipment failure rates, SIF demand rates, proof test frequencies, mission time are made. These form the basis for the expected performance.

Are those assumptions realistic? Is the SIF really operating as assumed?

IEC 61511 expects users to periodically compare actual performance with assumed performance. How do we do that? What is needed to get statistically viable results from the collected data? How does the data apply? How do we make sure we avoid drawing unrealistic conclusions?

This presentation will look at answers to these questions.

Whole System Integrity
Jon Wiggins, DEKRA. UK

In an increasing interconnected world, advances in technology now drive system complexity to a point where discreet understanding is no longer sufficient if the whole picture of system risks are to be understood.  

This paper discusses hazard and threat analysis of complex systems to complex requirements from the point of view of functional safety and cyber security.  Using the STPA approach this paper discuss a approach to unify different spheres of safety and security into common, saleable and actionable metrics without adding additional requirements or processes.  

How Effective is Process Safety Management Auditing and How Do We Know - Really!"
Andrew Tomb, Syngenta. UK

Effective auditing of Process Safety Management (PSM) systems is critical to ensuring the safety of employees and the public, and helping to protect against large scale business interruption events that may critically affect businesses. However the question remains, how do we know if a PSM auditing program is effective and consistent,

This paper uses the example of one company's PSM journey to highlight the development of PSM auditing and what aspects are important to consider in the design of a competent auditing program.

The Journey of Oman LNG in Rationalization of Safety Critical Elements, Findings, Challenges and Outcomes
Saaed Al-Shehhi, Oman LNG, Oman

This paper is about sharing Oman LNG's experience in optimizing Safety and maintainability of the LNG facility via reviewing and validating Safety Critical Elements (SCEs) records. It was found that some SCEs where not listed as SCE and, by definition, lacked assurance tasks which would compromise the safety and integrity of the plant. Other SCE are not genuine which would unnecessarily overload maintenance personnel. 

This paper highlights a potential hidden risk and/or an area of complacency where the given list of SCEs are taken for granted. It also showcases a track record of a proven approach of resolving it. 

Process Safety Index - Evaluating the Balance Between Hazards and Controls
David Hatch, Resilium, UK

A standard approach (called the Process Safety Index ) which is based on established industry principles to objectively and consistently evaluate the fine balance between Hazards and Controls in order to assist duty holders to determine if they have sufficient (or indeed excessive) protection in a way that can be anonymously compared across businesses without revealing sensitive process information.

Eliminating the Hazard of Alarm Floods
Robin Brooks, PPCL, UK

Guidelines for Preparing Process Equipment for Maintenance and Return to Service – An Overview of Contents and Material from a New CCPS Book
Roger Stokes, BakerRisk. UK

The safe preparation of process equipment for maintenance and its subsequent return to service is one of the most important aspects of safe process plant operations. It requires a detailed understanding of the risks involved and a series of multiple, interconnected steps.  There are many examples where major incidents have occurred resulting from a deficiency in one or more of these steps.

This new CCPS book provides a comprehensive guide detailing these steps based on many years of practical experience by both the BakerRisk authors as well as the CCPS Technical Committee and reviewers.

Ready, or Not? IVOR is Coming! Independent Verification of Readiness: Experiences of Preparing Organisations for Starting Up Unfamiliar Major Hazard Facilities
Mark Hopwood, DNV, UK

Runaway Chemical Reactions Don't Just Happen in the Chemicals Sector"
Dr Stephen Rowe, DEKRA, UK

Understanding The Dynamic Behavior Of A Decomposing Peroxide In A Top Vented Reactor Vessel Under Runaway Conditions
Amani Grati, Texas A&M University, Qatar

Update of ASTM E537-24 for DSC Testing Method
Professor Min Sheng, East China University of Science & Technology, China

Iterating, Integrating and Improving Human Factors at Two COMAH Upper Tier Sites
Andy Brazier, AB Risk, UK

How to Start an Ethylene Cracker – Use of Safety Critical Task Analysis for Highly Complex Processes
Andrew Fry, TUV Rheinland, UK

Understanding and Managing the Non-technical Elements of the Major Accident Barrier Model: Perspectives from Regulation of Human Factors in the North Sea Oil and Gas industry.
James Bunn, HSE, UK

Improving SIL Determination in LOPA: Misinterpretation of Safeguards in High Demand Systems
Rafael Fernandez-Gil Bermudez, Risktec Solutions, UK

A Multicriteria Approach for Risk-informed Design and Emergency Mitigation of CO2 Pipelines
Anindityo Patmonoaji, University College London, UK

Ensuring Production Continuity by Addressing HIC in Critical Equipment Through Derating
Srimannaray Kurukuri, ADNOC, UAE

The primary challenge when managing aged Oil & Gas production facilities is ensuring the integrity of equipment and piping systems, particularly in relation to Hydrogen-Induced Cracking (HIC) threats. Periodic integrity inspections at an offshore island production facility identified multiple pieces of equipment with zero remaining service life, potentially disrupting oil production mandates. This paper aims to demonstrate the innovative methods used to address these issues and maintain production until complete equipment replacement could be achieved.

Barrier Performance Assessment - An Innovative Approach Driving Process Safety Improvement of Aging Wells and Field Facilities
Sheikh Mubi Ashraf, Mari Energies, Pakistan

Turning Risks into Opportunities- Case Studies
Imtiaz Ali Hakro, Adnoc, UAE

This paper presents two innovative techniques adopted by a National Oil Company to proactively address the challenge of sustained annulus pressure (SAP) in their oil and gas wells. By deploying an annular cement plug and a specialized high-density fluid, the company was able to mitigate SAP, reduce costs, and avoid the need for costly rig-based interventions. These case studies demonstrate how the company transformed operational liabilities into opportunities for enhanced asset management and operational excellence. The lessons learned can benefit the broader industry facing similar SAP challenges.

Utilising CFD Consequence Results within Quantitative Risk Assessments
Will Place, DNV, UK

Accidental releases that are heavily influenced by near-field geometry or terrain may best be modelled by CFD tools. However, incorporating such scenarios into a QRA is not straightforward. DNV’s Safeti package is widely used in industry to assess risks and perform QRAs and is now able to import CFD results into risk analyses. By integrating CFD results, users can now achieve a more detailed and realistic assessment of risks for better risk management decision making, particularly for scenarios identified as major accident hazards.

Safety and Structural Assessment of ITER VS3 Power Supply Configurations: Integrating Energy Storage and Fault Analysis
Francesco Chille, FCSS, Italy

Use of Sensitivity Studies and Initial Safety Assessments to Rank Tritium Radiological Risk by Sub-System for the STEP Fuel Cycle
Michael Lord, UKIFS, UK

The STEP Fuel Cycle team have used an Atmospheric Dispersion Model and undertaken a sensitivity study to identify the powerplant, sub-system and flow parameters that influence the tritium-to-stack discharge levels. In parallel, the fuel cycle team have also assessed unmitigated tritium inventory releases from the fuel cycle major sub-systems. The results of the sensitivity study and initial radiological safety assessment will allow future design activities to appropriately focused. For example, system optimisation, modelling efforts and technology development can be focused effectively to minimise the discharge to the environment during conventional plant operations.

Creeping Change Hazard Identification (CCHAZID) for Managing Major Accident Hazards in a Dynamic Energy Sector (Including Risks Associated with Events Such as Pandemics)
Justin Holroyd, HSE, UK

Creeping changes are gradual, often going unnoticed and posing hidden risks. In collaboration, the Health and Safety Executive (HSE) and E.ON have developed the Creeping Change Hazard Identification (CCHAZID) methodology to effectively manage these risks across a portfolio of decentralised energy generation sites.

Recognising and effectively managing evolving risks is critical for ensuring the safety of operational sites. The CCHAZID methodology provides a streamlined approach to managing risks across a portfolio of decentralised energy generation sites. 

This proactive risk management framework, not only enhances safety standards, but also fosters a culture of continuous improvement and resilience.

End to End Transformation of MoC Quality Improvement: Start with Self-Verification and Sustain with Performance Management
Bugi Setiadi, bp, Indonesia

Cyber Security Response Plans Through the Lens Of Critical Task Analysis
Chris Flower, TUV Rheinland, UK

From Standards to Scenarios: Conducting Effective OT Cybersecurity Risk Assessments
Dwane Shelton, exida, Ireland

Digitalizing Permit to Work, Shift Handover, and Condition Monitoring
Moza Alkaabi, Adnoc, UAE

Enhancing Process Safety Management with Digital Solutions at OQEP
Safa Al Hatmi, OQEP, Oman

Understanding Major Hazard Human Harm Risk Assessment (MHHHRA) for COMAH - New CDOIF Guidance
Carolyn Nicholls, RAS, UK

This presentation is an introduction to the guidance soon to be published by CDOIF 'Understanding Major Hazard Human Harm Risk Assessment (MHHHRA) for COMAH'. The scope of the guidance is the full range of COMAH businesses from simple storage of single substances (e.g. bulk LPG), through to complex chemical processing. The purpose of this guidance is to promote consistency of risk assessment approach within COMAH, and provide operators, third parties and regulators with a common agreed reference. 

Alarm Management - Guidance Document EEMUA 191 4th Edition Updated 2024
Andrew Brazier, AB Risk, UK

Separation Distances for Small-Scale Hydrogen Installations: Development of Guidance for the Energy Institute
Karina Almeida Lenero, Gexcon, UK

Evaluating the Impact of New Regulation for Certifying Above Ground Storage Tanks and Vessels in Texas
Dr Edison Sripaul, Mary Kay O'Connor Process Safety Center, USA

ALARP Demonstration for Novel Projects in Energy Transition
Sean Baker, ERM, UK

The concept of risks being As Low As Reasonably Practicable (ALARP) is at the heart of all UK safety regulations, however with the emergence of new technologies with limited operating experience and consensus on good practice, ALARP demonstration becomes more difficult. In some cases it could even be argued that the general approach and existing tolerability criteria are unsuitable.

This paper explores the current ALARP framework, the impact of uncertainty on risk assessments, and gaps in current legislation and good practice. Guidance for ensuring a robust basis of safety will be presented along with case studies and alternative approaches.

An Energy Harvesting Ship, the First of its Kind
Clare Dunkerley, Otto Simon, UK

The Importance of the Gas Safety (Management) Regulations: Cyclical Safety Management; Unknown and Unmitigated Risks; and Supporting Safety in the Energy Transition
William van Woerder, DNV, UK

Operational Safety Excellence of Ammonia Unitized Chiller 120-C Replacement in Ammonia Plant
Aditya Sigit Prasetyna, Institut Teknologi Sepuluh Nopember, Indonesia

Fugitive Emissions Reduction Through Optical-fibre Based Monitoring
David Snoswell, nuron, UK

Critical industries rely on global warming gasses such as hydrofluorocarbons to provide essential products and services, from industrial refrigeration to semiconductors and pharmaceuticals. Intermittent leaks can be challenging to address without comprehensive monitoring as processes may be spread over a wide area. Continuous and comprehensive monitoring is needed, but is often cost prohibitive.  

Here we present a passive fibre-optic based leak detection system called “scinaps” that can detect leak events in pipes, flanges and valves from a central electronic hub.  This method employs fibre-based sensing to provide cost-effective continuous monitoring in a branched network over a wide area.

Trust and VVUQ for Explosion Simulations with CFD: a Focus on Solution Verification
Steve Howell, Abercus, UK

This paper presents the ASME framework for VVUQ and its application to the use of CFD for modelling explosions which identifies several important steps that are needed to build trust in simulation predictions.

By definition within the ASME framework, validation cannot be undertaken by a code developer alone (unless all relevant steps are captured by the code), validation is for the combination of the CFD code AND the individual user or user workflow.

Examples of solution verification are presented that show that for some applications, the CFD predictions based on the PDR method can vary significantly with the mesh spacing.

Case Study of a Methodology to Assess the Localised Heat-Up of a Vessel from a Pipe Connection in a Fire Event
John Evans, Thornton Tomasetti, UK

Diesel/Kerosene Fuel Mist Hazards – A Proportionate Response?
Harvey Dearden, SISSuite, UK

Process Safety Design and Layout: Green Hydrogen, Green Ammonia, and Pyrolysis Facilities
Phillip Smith, px Engineering, UK

A Lessons Learned Approach to Flammability and Explosion Risks in Enclosed Process Buildings in the Chemical Industry
Ahmad Al-Douri, University of Oklahoma, USA

The general public may be exposed to risks associated with private individuals who accumulate or control large quantities of hazardous chemical substances. This issue has historically received limited attention from public authorities, whose focus tends to remain on accident prevention in industrial settings. This article provides an analysis of significant chemical stockpiles that have been discovered in the Czech Republic over the past decade. It examines the motivations of the individuals involved, the course of events, and the actual or potential consequences of the incidents.

Nuclear Safety and Process Safety – A Powerful Combination
Mark Shields, Assystem Safety and Risk, UK

Avoiding Nuclear Catastrophe: A Framework for Profiling the UK’s Safety Engineer Capability and Recommendations for Effective On-The-Job Training
Charlotte Levy, Babcock International, UK

Comparing Fire Growth Dynamics of Liquid Pool and Solid Combustible Fires: Implications for Fire Spread and Layout Arrangements in Nuclear Power Facilities
Dan Tyas, AtkinsRéalis, UK

A Layered Approach to Combined Hazards Assessment: Insights from Small Modular Reactor Applications
Belen Guerra, AtkinsRéalis, UK

Enhancing Process Safety Through Integrated Emergency Response Planning
Syed Taha, QatarEnergy LNG, Qatar

Containment or Catastrophe: Bridging the Gap Between Biosafety and Process Safety
Jaspreet Kaur Chana, ERM, UK

With high-containment and biologics laboratories at the forefront of scientific advancement, managing biological risks with the same level of rigor as traditional high-hazard industries has become essential. This presentation explores how integrating process safety principles and applying industry standards such as IEC 61511 into biorisk management can help prevent major accidents. Using case studies, this presentation explores how to design safer, more resilient systems and addresses the unique challenges of quantifying biological risks.

With regulatory expectations evolving, this session presents an integrated, best-practice approach to managing biological hazards, bridging the gap between conventional laboratory safety and high-hazard industry practices.

Hazardous Area Classification and Hydrogen: A User’s Experience.
Alison McKay, TÜV Rheinland Industrial Services, UK

Hydrogen is being used increasingly in industry, as a reactant and as a replacement for natural gas, or as a mixture with natural gas, as we attempt to decarbonize and achieve Net Zero. The Energy Institute has prepared guidance on repurposing existing equipment for hydrogen and the challenges this presents, including in hazardous area classification, as have IGEM. 

Hydrogen leaks through valves or pipe joints more readily than other gases, and can attack some metals. 

This paper discusses the changes to hazardous area classification for hydrogen, the user’s experience and the challenges that the use of hydrogen presents. 

Enhancing Risk Assessment Consistency: Integrating Fault Tree Analysis into Risk Assessment
Indira Saifuddin, Bureau Veritas, UK

Difficulties with DSEAR: Insight into the Challenges of Applying Standard Methodologies for Hazardous Areas Classification in Nuclear-specific Contexts
James Cassel, Cavendish Nuclear, UK