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Understanding Pipeline Flaw Assessment And Repair
| Description: |
While most pipeline operators are familiar with the use of B31G or RSTRENG® for evaluating corrosion and the limitations for dents in the various ASME B31 standards, they are less familiar with assessments applicable to very low toughness pipes, cracks, flaws and damage at or near welds, and the concept of leak versus rupture. In addition, when a flaw is determined to be unacceptable, a myriad of repair options exist, all having different advantages, limitations, and cost. This course will introduce the attendees to the types of pipeline flaws that can be encountered, the influence of the metallurgical properties and operating conditions of the pipeline on the consequences of the flaws, the assessment methods applicable to different flaws and pipe conditions, and the applicable repair options, including considerations when welding on in-service piping. |
| Introduction: |
Recent Feedback:
"One of the best technical presenters I have seen."
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"Excellent. Great material on cracking and fatiguing. Great explanations of more complicated flaws"
This two-day course is offered to provide operators with an understanding of the effects of various types of pipeline flaws on pipeline integrity and the advantages and limitations of various assessment and repair methods for those flaws. Understanding the potential consequences of different types and severities of flaws, the inputs needed to assess the flaw severity, and the options for repair will provide operators with improved ability to prioritize flaws for assessment, efficiently gather the required input data, perform the assessment, and select among the most effective methods of mitigating the
risk of failure.
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| Objective: |
Outline:
Types of Pipeline Flaws
Introduction to pipeline metallurgy, manufacturing, fabrication and material specifications and their influence on flaws and flaw assessment
Input data needed for flaw assessment:
Flaw characteristics, steel properties, stress;
The role of bell hole inspection and data derived from other sources including ILI and hydrotesting
In-situ, nondestructive measurement of measuring steel properties and stress
How Flawed is Too Flawed?
Limitations imposed by U.S. codes and industry consensus standards
Models and calculation methods:
Corrosion assessment
Mechanical damage assessment
SCC assessment, and assessment of other cracks
Manufacturing and fabrication flaw assessment, including assessment of wrinkle bends, welds, seams, and plate flaws
Repair and Remediation
The evolution of repair practices in the pipeline industry
The principle of repair by reinforcement; use of full encirclement sleeves (metallic and composite)
Repair by modification the flaw profile; converting sharp crack-like flaws to smooth, rounded flaws by grinding
Welding on in-service pipelines; avoid making a bad situation worse.
Repair by direct deposit of weld metal
Other repair options
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| Agenda: |
View Course pdf |
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| Cost: |
$ 1695.0000 (U.S. Dollar)
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