Corrosion Management of Carbon Steel in Sour Gas Production

By: ACME
In-Company

Corrosion Management of Carbon Steel in Sour Gas Production

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About the course

To compete with more conventionally produced gas, wet sour gas is transported from the wellhead to the gas sweetening units in carbon steel pipelines. Sour gas corrosion can lead to pipeline pinhole leaks, which pose a hazardous risk to people and wildlife, and result in pollution in the environment.

Corrosion in sour gas lines is usually controlled through chemical inhibition in combination with frequent batching and pigging programs. In the presence of elemental Sulphur, the corrosion rate can exceed 30 mm/year. The mitigation methods designed to manage and maintain the integrity of carbon steel downhole tubing and pipelines present some of the toughest technical challenges in corrosion management.

This course outlines sour gas degradation mechanisms and the challenges related to proactive measures to mitigate corrosion, corrosion monitoring, the use of lined carbon steel materials, and some case histories. Additionally, the course covers the challenges related to establishing Key Performance Indicators (KPIs) which are the key factors in preventing main events such as pinhole leaks.

The course consists of 14 hours of content, provided through online live sessions with the instructor. All training content is provided through your EngineeringTrainer account.

In-Company
16hr Content
16 PDH Credits
English
INCO3111

Meet your instructor

Instructor

ACME

Materials Science, Metallurgy

Learning Outcomes

After this course, you...
• have seen the types of water production, how sulfur is formed, and understand their impacts on pipeline corrosion,
• understand from the sour gas degradation mechanism and how this leads to pinhole leaks,
• understand the flow regimes in a sour gas pipeline and their impacts on corrosion,
• know the approach to select the appropriate inhibitors,
• have seen how to manage the challenges associated with Coated Pipelines in Sour Gas service,
• have developed the skills to play a proactive role in managing corrosion in sour gas pipelines.

Who should attend this course

• Materials and corrosion engineers, operators, inspection engineers and other analytical staff looking to learn how to manage corrosion in sour gas production lines.

Prerequisites

A basic understanding of corrosion is beneficial.

Program & Details

Sour Gas Properties Live

1. The behaviour of sour gas in saline fluids
2. Conditions for elemental sulfur formation
3. Different types of corrosion including Top of the Line Corrosion
4. Indications of Corrosion in Water Analysis at the End of the Line
Inhibitor types and qualifications Live

1. Introduction to different types of inhibitors and best approach to inhibit corrosion.
2. Selection and testing of inhibitors.
3. Guidelines for Mitigation of Carbon Steel Pipeline Corrosion in the presence or absence of Elemental Sulfur Corrosion
4. Pros and Cons of Pitting operation
5. Sour Gas Injection: Challenges and Mitigations
Flow Regime Types Live

1. Explanation of different flow regimes
2. Flow modeling in pipelines and impact on corrosion
3. Challenges with corrosion monitoring and inspection methods in sour services
High Density Polyethylene Liners Live

1. Top of the Line Corrosion
2. Vapour Phase Inhibitors
3. Challenges with Using High Density Polyethylene HDPE in Sour Service Pipelines