Module 1: Introduction to Pipeline Pigging

• Pipeline pigging principles
• Purpose of pipeline pigging
• Applications in oil and gas pipelines
• Pipeline operating conditions
• Pigging frequency and operational considerations
• Pigging programmes and planning

Module 2: Types of Pipeline Pigs

• Foam pigs
• Mandrel pigs
• Cleaning pigs
• Brush pigs
• Magnetic pigs
• Sealing and batching pigs
• Bi-directional pigs
• Sphere pigs
• Gauge pigs
• Intelligent/inspection pigs
• Specialty pigs
• Pig components and accessories

Module 3: Pig Selection

• Pipeline diameter and configuration
• Pig diameter and sizing
• Pipeline bends and restrictions
• Product and service conditions
• Cleaning requirements
• Pig material selection
• Cups, discs and brushes
• Differential pressure considerations
• Selecting pigs for different applications

Module 4: Pig Launchers and Receivers

• Pig launcher configuration
• Pig receiver configuration
• Barrel and reducer sections
• Quick-opening closures
• Kicker lines
• Bypass and equalisation lines
• Valves and isolation points
• Vent and drain systems
• Pressure indicators
• Pig signallers

Module 5: Pre-Pigging Preparation

• Review of pigging procedures
• Pipeline condition assessment
• Pig inspection before launching
• Verification of pig compatibility
• Valve line-up
• Communication requirements
• Toolbox talks
• Permit-to-work requirements
• Pre-operation safety checks

Module 6: Pig Launching Operations

• Preparing the pig launcher
• Isolation and depressurisation
• Opening the launcher safely
• Pig loading and positioning
• Closure inspection and securing
• Pressure equalisation
• Valve sequencing
• Introducing flow behind the pig
• Confirming pig departure

Module 7: Pig Tracking and Monitoring

• Pig tracking principles
• Pig signallers
• Magnetic tracking systems
• Electronic pig tracking
• Monitoring pressure and flow
• Estimating pig velocity
• Confirming pig location
• Communication between launching and receiving stations

Module 8: Pig Receiving Operations

• Preparing the receiver
• Confirming pig arrival
• Isolation procedures
• Depressurisation
• Venting and draining
• Safe opening of receiver closure
• Pig removal
• Handling recovered debris and liquids
• Post-run pig inspection

Module 9: Pipeline Cleaning Operations

• Removal of wax and paraffin
• Scale and deposit removal
• Sand and debris removal
• Liquid hold-up removal
• Corrosion-product removal
• Progressive cleaning programmes
• Multiple-pig cleaning runs
• Evaluating cleaning effectiveness

Module 10: Special Pigging Applications

• Product batching and separation
• Pipeline dewatering
• Pipeline drying
• Hydrotest water removal
• Product displacement
• Pipeline commissioning
• Pipeline decommissioning
• Chemical distribution
• Corrosion inhibitor application

Module 11: Intelligent Pigging and Pipeline Inspection

• Introduction to In-Line Inspection (ILI)
• Magnetic Flux Leakage (MFL)
• Ultrasonic Testing (UT) pigs
• Geometry and caliper pigs
• Crack detection technologies
• Pipeline mapping
• Metal-loss detection
• Inspection data overview
• Role of ILI in pipeline integrity management

Module 12: Pigging Problems and Troubleshooting

• Stalled pigs
• Stuck pigs
• Damaged pigs
• Excessive differential pressure
• Unexpected pressure changes
• Pig bypass
• Excessive debris accumulation
• Incorrect pig selection
• Locating a lost or stalled pig
• Recovery considerations
• Preventing recurring pigging problems

Module 13: Pigging Safety

• Pigging operation hazards
• Stored pressure hazards
• Hydrocarbon exposure
• Toxic and flammable gases
• H₂S considerations
• Pressure isolation
• Lockout/Tagout (LOTO)
• Venting and depressurisation
• Quick-opening closure safety
• Personal protective equipment
• Emergency response procedures
• SIMOPS considerations

Module 14: Pigging Documentation and Reporting

• Pigging procedures
• Pigging checklists
• Pig run records
• Pressure and flow records
• Pig tracking records
• Debris and waste records
• Abnormal-event reporting
• Post-pigging reports
• Lessons learned and operational improvement

Practical Exercises

Participants will undertake practical exercises covering:

• Identification of different pipeline pigs
• Pig components and accessories
• Pig selection for different pipeline conditions
• Identification of launcher and receiver components
• Pre-pigging inspection
• Valve sequencing
• Pig loading and launching simulation
• Pig receiving procedures
• Pressure isolation and depressurisation
• Pig tracking exercises
• Troubleshooting pigging scenarios
• Completion of pigging checklists a