Pipeline Repair Methods/Inservice Welding Course Program

DAY 1

7:30am-8:00am Registration, coffee
8:00am-5:00pm Course

Pipeline Repair Methods/InService Welding

• Introduction
• Incentives
• Primary Concerns

Defect Assessment Prior to Repair

• Reason for Assessment
• Types of pipeline defects
• Pressure Reduction Requirements
• Corrosion Measurement Methods
• Corrosion Assessment Methods

Selecting an Appropriate Repair Method

• Pipeline Repair Manual
• Detailed Selection Criteria

Burnthrough and Related Safety Concerns

• Factors Affecting Burnthrough
• Effect of Wall Thickness
• Effect of Heat Input
• Effect of Flow Rate/Pressure
• Avoiding Burnthrough

Hydrogen Cracking Concerns

• Recent Significant Incidents
• Common Factor/Recommendation
• Hydrogen Cracking Requirements
• Welding Metallurgy 101
• Prevention of Hydrogen Cracking

FullEncirclement Repair Sleeves

• FullEncirclement Sleeve Types
• Principle of Operation
• Assuring Effective Reinforcement
• Sleeve Design
• Sleeve Fabrication

Hot Tap Branch Connections

• Branch Connection Design
• Reinforcement Types
• IntegrallyReinforced

Pipeline Repair by Weld Deposition

• Physical Concept
• History of Weld Deposition Repair
• Burnthrough Risk
• Integrity Restoration
• Practical Application

NonWelded Repairs

• Repair by Grinding
• Composite Repairs
• Epoxy Filled Shells

Code and Regulatory Requirements

• Recent Changes to API 1104
• Code Requirements for Weld Deposition Repair

DAY 2
8:00am-4:00pm Course

Procedure Selection for Hot Tap and Repair Sleeve Welding

• Burnthrough Risk Summary
• Prevention of Hydrogen Cracking
• Welding Procedure Options
• Welder/Procedure Qualification
• Predicting Required Heat Input
• Selecting an appropriate procedure

Practical Aspects of Hot Tap and Repair Sleeve Welding

• Proper electrode handling
• Proper fitup
• Proper welding sequence
• Control of Heat Input Levels
• Inspection and Testing

Lessons to be Learned from Past Pipeline Repair Incidents

• Reported Incidents
• Previously Unreported Incidents
• Ten Commandments of InService Welding

Organized by:
Supported by: