| February 9, 2009 |
| 7:30am |
Registration & coffee |
| 8:00am-4:45pm |
Course |
| February 10, 2009 |
| 8:00am-4:45pm |
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.
Who Should Attend
Pipeline engineers, Operations and Maintenance personnel, inspectors, and welders.
Lecturers
-
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.
Course Notes
All delegates will receive a detailed set of lecture notes containing more than 250 pages, providing an invaluable reference document after the course.
Continuing Education Units
Upon completion of the course, participants will be eligible to receive 1.2 Continuing Education Units (CEUs).
Course Program
DAY 1
Pipeline Repair Methods/In-Service 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
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 In-Service Welding
