ADEPP a tool forADEPP a tool forConfiguration ManagementConfiguration Management

Major Accident HazardMajor Accident Hazard

An occurrence resulting from uncontrolled developments in the course of the operation of any onshore establishment or pipeline or offshore installation, and leading to serious danger to human health or the environment, immediate or delayed, inside or outside the onshore establishment or offshore installation, and involving one or more dangerous substances.

This includes in particular a major: Emission Fire Explosion.

Major Accident Hazard TreeMajor Accident Hazard Tree

From API 14JFrom API 14J

Vessel Overflow

Equipment Failure

Opening a closed system

Vent/flare system discharge

• Inflow exceeds outflow

• Overpressure*

• Leak: Corrosion, Erosion, Maintenance

• Excessive temperature*

• Hit by object

• Material; quality• Sudden failure of

mechanical seal*

• Valve operation

• Inadequate scrubber size

• Scrubber inflow exceeds outflow*

Oil Spill Escaping gas

Air Pollution

Inadequate drain system

Water pollution

Air Pollution

Asphyxiation/ poisoningInjury

Oxygen xxxx

Fuel

Ignition Source

• Lightning• Static electricity• Electrical short• Electrical sparks• Human induced

• Flashback• Hot surfaces• Exhaust sparks• Open flame • Fire tube

Electric shock

• Lightning

• Electrical short

• Inadequate ground

• Exposed live connections

Physical impact

• Fall• Tripping• Slip on slick

surfaces• Hit by object• Overpressure• Cranes• Boats• helicopter

Large fire

• Insufficient or inoperable fire fighting equipment

• Wrong location of F/F equipment

• Inability of shut off fuel

• Lack of adequate warning

Asphyxiation/ poisoning

• Gas leak in confined space

• Leak of toxic chemicals

• Discharge of fire extinguishing agent in confined space

• Smoke from fire

Burns shock

• Hot surfaces• Flare radiation• Burning fluids

Inability to escape

• Blocked escape route• Insufficient lighting

• Inappropriate survival capsule design or location

• Lack of fire barriers• Lack of adequate warning• Lack of communications• Lack of visibility• Inadequate training

Injury

* Sources which can be anticipated by sensing charges in process conditions

Fire Explosion

Safety Critical SystemSafety Critical System

A Safety Critical System (SCS) is any part of an establishment or installation that has a significant role with the:

Control of major process hazards Limitation and recovery from containment loss Limitation and recovery from fire and explosion Escape and refuge Evacuation and rescue.

ExampleExampleConfiguration Management for PSVConfiguration Management for PSV

Hierarchy of Safety Critical BarriersHierarchy of Safety Critical Barriers

Gas Release

Process SafeguardingProcess Safeguarding

• Overpressure• Leak• Liquid Overflow

• Gas Blowby

• Under-pressure• Excess Temperature• Direct Ignition Source• Excess combustion vapour

Following scenarios are the most common undesirable events which can lead to an Emission and/or Fire & Explosion Major Accident in a plant which processes the flammable and/or toxic materials:

According API 14C at least two levels of protection independent and diverse shall be provided wherever these hazards are credible.

Overpressure ProtectionOverpressure Protection

Overpressure Safety BarriersOverpressure Safety Barriers

Structural Integrity Process Control

Strategy & Tuning

Design Quality Assurance

Operating Procedures

Safe Operating Pressure

Gas Release

Incident Prevention

-

Post Incident Control and Mitigation

Overpressure

HAZOPCode Compliance

High Pressure Trip

Pressure Relief Valve

Multiple Failures

PSV Safety BarriersPSV Safety Barriers

Manufacturing

EPC ContractorQuality Assurance

Construction

Overpressure < Failure pressure of vessel

Vessel Failure

Incident Prevention Post Incident Control and

Mitigation

Pressure Relief Failure

ProcurementDesign

Maintenance

Commissioning

Client Quality Assurance

Design Safety BarriersDesign Safety Barriers

Competent Checker

Design Quality AssuranceProper Design

Wrong specification

Incident Prevention

-

Post Incident Control and

Mitigation

Design Failure

Competent originator

Technical Work Practice

Independent Competent auditor

Disciplinary Check IDC

IndependentEPC Audit

Suitable Software

Competent Approval Authority

?

Supporting studies (input data)

Option1: Distribution Matrix

Option2: Brainstorming

Project

Continuous ImprovementContinuous Improvement

Today

Suitable Software

Suitable Software

In 5 Years

Flaws in a safety barrier can be:- Eliminated- Improved by more advanced technology.

Fishbone Analysis Fishbone Analysis for Total Quality Management of PSVfor Total Quality Management of PSV

Configuration ManagementConfiguration ManagementLife Cycle NotionLife Cycle Notion

Project Management

Engineering Procurement Manufacturing Construction Commissioning

Plant Management

Operation Maintenance

Configuration ManagementConfiguration ManagementVerification NotionVerification Notion

Configuration ManagementConfiguration ManagementRequired ToolsRequired Tools

Design

ADEPP HSE Toolkit is used to improve design by application of:

• Combined Dynamic Simulation & Consequence modelling,

Design

Configuration ManagementConfiguration ManagementRequired ToolsRequired Tools

Design Design

ADEPP HSE Toolkit is used to improve design by application of:

• Combined Event Tree & Fault Tree Analysis for determination of Safety Critical Elements,

Configuration ManagementConfiguration ManagementRequired ToolsRequired Tools

Design Design

ADEPP HSE Toolkit is used to improve communication between the different disciplines and phases of project by application of:

• Optimal and Interactive Knowledge Management on the 2D and/or 3D platform.

Configuration ManagementConfiguration ManagementHSE & Quality Management SystemHSE & Quality Management System

Configuration ManagementConfiguration ManagementRequired ToolsRequired Tools

A Typical 3D model of an oil & gas plant consists of 1-3 million object.Considering the life cycle requirements, activities and tasks for each object billions of data, information and knowledge should be managed. Without a robust and reliable database management configuration management remain a very good method but impractical.

Configuration ManagementConfiguration ManagementRequired ToolsRequired Tools

ADEPP Monitor is used to improve requirement management:

• Convert the requirements from the different bulk document to short, traceable and auditable Performance Standards to express the requirements in terms of:

• Functionality• Reliability / availability• Survivability• Dependency / Interaction

• Link the required Verification Scheme to each Performance Standard.

• Plan the required Activities and assign the Tasks to each performance standard and relative verification scheme.

• Provide the Online Action Tracking system to be used efficiently by people who are located in physically remote offices/sites.

Configuration ManagementConfiguration ManagementRequired ToolsRequired Tools

ADEPP Monitor is easy to be customised, used and modified for any application because like “Lego” it consists of the ready made blocks rather than a rigid and centralised database like an “Intelligence Cube”.

Thank You for Thank You for Your Kind Attention!Your Kind Attention!

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