Pipeline Repair Methods/InService Welding Course

The various aspects of pipeline repair using weld and non-weld methods will be covered, as will the concerns for welding onto in-service pipelines and the approaches used to address them.

Pipeline engineers, Operations and Maintenance personnel, inspectors, and welders.

• Bill Bruce is director of welding technology with CC Technologies. Prior to joining CCT, he was a technology leader at Edison Welding Institute and a senior engineer at Panhandle Eastern Pipeline Co. He is a member of the American Petroleum Institute API 1104 Committee and is the chairman of the Maintenance Welding Subcommittee.

• Chris Alexander is a Principal at Stress Engineering Services, Inc. In terms of pipeline work, He has been integrally involved in assessing the effects of dents and mechanical damage on the structural integrity of pipelines. These efforts have involved full-scale burst and cyclic pressure fatigue testing, as well as modeling dents using finite element analysis. Dr. Alexander has also been involved in assessing the use of composites in repairing pipelines and offshore risers. He has published more than 50 technical papers and has made international presentations on a wide range of topics.

  He has received B.S. M.S., and Ph.D. degrees in Mechanical Engineering from Texas A&M University.
  

All delegates will receive a detailed set of lecture notes containing more than 250 pages, providing an invaluable reference document after the course.

Upon completion of the course, participants will be eligible to receive 1.2 Continuing Education Units (CEUs).

• Introduction
• Incentives
• Primary Concerns

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

• Pipeline Repair Manual
• Detailed Selection Criteria

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

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

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

• Branch Connection Design
• Reinforcement Types
• IntegrallyReinforced

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

• Repair by Grinding
• Composite Repairs
• Epoxy Filled Shells

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

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

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

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