Stress Corrosion Cracking (SCC) of Gas and Liquid Pipelines

By: ACME
Instructor-Led

Stress Corrosion Cracking (SCC) of Gas and Liquid Pipelines

Gain access

Quotation for your Team

Private Course for your Team
Industry Expert Instructor-Led Training
Scheduling based on client requirements

About the course

Stress Corrosion Cracking (SCC) is a significant concern in the oil, gas, and chemical industries as it can lead to pipeline failures, and pose safety and environmental risks. SSC is a process in which a material undergoes cracking due to the combined influence of tensile stress and a corrosive environment. It is important for personnel to be aware of the risks associated with SCC and that they can implement appropriate measures to prevent its occurrence.

This training course will equip participants with the knowledge and skills to prevent, detect, and manage SCC in gas and liquid pipelines. By the end of the course, participants will have a comprehensive understanding of SCC in gas and liquid pipelines, as well as the knowledge and skills necessary to identify, prevent, and mitigate SCC-related risks. They will be skilled in making informed decisions regarding pipeline integrity management, maintenance practices, and regulatory compliance.

The course consists of 15hr of live sessions with the instructor. All training content is provided through your EngineeringTrainer account.

Instructor-Led
15hr
15 PDH Credits
English
INCO3115

Meet your instructor

Instructor

ACME

Materials Science, Metallurgy

Learning Outcomes

After this course, you...
• understand the mechanisms of SCC, including the factors that contribute to its initiation and propagation,
• know how a Risk Assessment for SCC should be performed; are able to understand the factors that influence SCC occurrence, including environmental conditions, material properties, and stress levels,
• have obtained a good understanding of the various non• destructive testing techniques used for the detection and monitoring of SCC (ultrasonic testing, radiography, visual inspections, and other advanced inspection methods),
• have a solid overview of the mitigation strategies for SSC, including material selection considerations, coating and cathodic protection methods, and the use of corrosion inhibitors,
• have learned about effective maintenance practices and integrity management strategies to prevent SCC,
• have seen case studies and the lessons learned from SCC incidents in pipelines.

Who should attend this course

• Professionals working in the oil and gas industry, particularly those involved in the design, construction, operation, and maintenance.
• Individuals from related fields or academic backgrounds seeking to expand their knowledge of SCC and pipeline integrity may also find the course beneficial.

Prerequisites

Participants should have a basic understanding of engineering principles related to materials science, corrosion, and pipeline engineering.
Familiarity with corrosion principles, types of corrosion, and corrosion control measures will facilitate a deeper understanding of SCC and its management in pipelines.

Program & Details

Why is SCC a problem? Live

1. Stress corrosion failure can happen “unexpectedly” and rapidly after a period of service leading to disastrous failure of structures or leaks in pipe.
Causes of SCC Live

1. Factors that trigger SCC; corrosive substances in the transported fluid, high tensile stresses on the pipeline, and susceptible materials
2. Environment factors; hydrogen sulfide (H2S), chloride ions, and other corrosive agents.
3. Tensile stresses.
History of Pipeline SCC Live

1. Pipeline failure statistics
2. National Energy Board (NEB) Hearings
3. Definition of SCC/environmentally assisted cracking (EAC)
Mechanisms of Pipeline Environmentally Assisted Cracking (EAC) Live

1. High-pH (Classical) SCC
2. Low-pH (Near-neutral pH, non-classical) SCC
3. Stages of cracking
4. Three factors – (i) tensile stress, (ii) corrosive environment, (iii) susceptible material
5. Role of coatings and CP
6. The latest thinking from SCC R&D
Sources of Stress Live

1. Residual stress
2. Operating stress (liquids vs. gas)
3. Surface preparation
4. Stress raisers such as welding defects and corrosion pits, associated to the cracking nucleation.
5. Circumferential/axial stresses
6. Crack propagation vs. sensitive microstructure
Field Assessment of SCC Live

1. Site selection
2. Background data selection
3. Documenting the environment and sample collection
4. Environment monitoring
Managing Pipeline SCC Live

1. ILI (In-line Inspection)
2. Hydrotesting
3. Direct assessment
Risk Management and SCC Live

1. The role of risk management
2. Conducting a comprehensive risk assessment
3. Identifying potential sources of SCC
4. Evaluating the probability of occurrence
5. Assessing the potential consequences of SCC-related failures
Regulatory Compliance Live

1. Regulatory bodies and applicable industry standards
2. Guidelines and requirements for the prevention and management of SCC in pipelines.
3. Inspection, monitoring, and maintenance practices to minimize the risk of SCC-related failures.