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Pipeline Integrity Management Systems: A Practical Approach

By
R. Mora
R. Mora
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P. Hopkins
P. Hopkins
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E. Cote
E. Cote
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T. Shie
T. Shie
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ISBN:
9780791861110
No. of Pages:
374
Publisher:
ASME Press
Publication date:
2016

Direct assessment methodologies are only applicable for time dependent threats (i.e., internal corrosion, external corrosion, and stress corrosion cracking). Time-independent threats (i.e., operator error, weather related/outside force, and third party/excavation damage) and stable threats (i.e., equipment failure, manufacturing defects, and construction defects) do not have industry recognized direct assessment methodologies. Prudent operators should assess time-independent and stable threats by other means than direct assessment. Operator training audits, monitoring of third party activity, inspection of equipment, pressure testing, and In-Line Inspection (ILI) are options for assessing these threats.

10.1
Introduction
10.2
Terminology
10.3
Direct Assessment Overview: Four Step Process
10.4
External Corrosion Direct Assessment
10.5
Internal Corrosion Direct Assessment
10.6
Stress Corrosion Cracking
10.7
Predictive Modeling Techniques
10.8
Using Direct Assessment to Justify Making a Line Piggable
10.9
Case Study 1—Facility Piping
10.10
Case Study 2—Unpiggable Pipeline
10.11
References
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