SCC Course Syllabus

DAY 1
7.30 Coffee, registration
8am-4.30pm

Description of SCC

• Definition
• Causes
• Appearance
• Other forms of environmental-assisted cracking

History of SCC in pipelines

• High-pH SCC
• Near-neutral-pH SCC
• Internal SCC

Stages of SCC

• Pre-initiation
• Initiation
• Growth models
• Early growth
• Dormancy and re-initiation
• Late growth
• Final fracture

Test techniques to study SCC

• Accelerated testing
• Electrochemical tests
• Cracking tests
• Measuring crack growth

Environmental factors

• Field observations
• Liquid composition and concentration
• Electrochemical potential
• Temperature

Stress factors

• Field observations
• Importance of strain rate
• Cyclic loading
• Sources of stress

DAY 2 • 8AM-4.30PM

Metallurgical factors

• Pipe grade
• Steel composition
• Mechanical properties
• Microstructure
• Manufacturer

Mechanisms of SCC

• High-pH SCC
• Near-neutral-pH SCC

Likely locations for SCC

• Geographical
• Proximity to compressor or pump stations
• Proximity to other SCC
• Soil, terrain, moisture level
• Gas versus liquid pipelines
• Coating types and conditions
• Pressure history
• Corrosion history
• Pipe manufacturer

SCC detection and integrity assurance

• B31.8S
• Hydrostatic testing
• In-line inspection
• Direct assessment

DAY 3 • 8AM-4.00PM

Mitigating SCC

• Operating existing pipelines
• Designing new pipelines
• Repair methods

Integrity management plans

• Regulations
• Approaches

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