Corrosion Control and Material Selection based on NACE MR0175 ISO 15156

Corrosion Control and Material Selection Based on NACE MR0175 / ISO 15156

The Corrosion Control and Material Selection Based on NACE MR0175 / ISO 15156 Course is designed to provide participants with the knowledge and skills required to select appropriate materials and corrosion control methods for environments that are particularly challenging, such as those encountered in the oil and gas industry. NACE MR0175 and ISO 15156 are key standards for ensuring that materials and equipment are suitable for use in sour service environments where hydrogen sulfide (H₂S) and other corrosive elements are present.

Course Overview:

1- Introduction to Corrosion Control and Material Selection

• Corrosion Basics: Understanding the fundamentals of corrosion, including mechanisms and factors that influence corrosion rates.
• Importance of Corrosion Control: Why proper material selection and corrosion control are critical in preventing failures and ensuring safety in industrial applications.

2- Understanding NACE MR0175 / ISO 15156

• Overview of NACE MR0175: A standard developed by the National Association of Corrosion Engineers (NACE) that specifies requirements for materials used in equipment exposed to H₂S-containing environments in the oil and gas industry.
• Overview of ISO 15156: An international standard that is largely harmonized with NACE MR0175, covering materials used in H₂S-containing environments for petroleum and natural gas industries.
• Scope and Applicability: Applications and limits of these standards, including the types of materials and environments covered.

3- Material Selection Criteria

• Material Properties:
  • Corrosion Resistance: Evaluating materials based on their resistance to various forms of corrosion, including stress corrosion cracking (SCC), sulfide stress cracking (SSC), and general corrosion.
  • Mechanical Properties: Ensuring materials have the necessary strength and toughness for their intended applications.
• Material Categories:
  • Carbon Steels: Use of carbon steels with specific heat treatments and alloying elements.
  • Stainless Steels: Selection of austenitic, ferritic, and duplex stainless steels for different environments.
  • Alloys: High-alloy materials such as nickel-based alloys and their suitability for severe environments.

4- Corrosion Control Methods

• Coatings:
  • Types of Coatings: Understanding the different types of coatings (epoxies, polyurethanes, etc.) and their applications.
  • Application Techniques: Proper techniques for applying coatings to ensure maximum protection.
• Cathodic Protection:
  • Principles of CP: Overview of cathodic protection systems (sacrificial anodes and impressed current).
  • Design and Installation: Guidelines for designing and installing CP systems to protect equipment from corrosion.
• Corrosion Inhibitors:
  • Types of Inhibitors: Different types of corrosion inhibitors (liquid and vapor-phase) and their applications.
  • Application and Effectiveness: How to apply inhibitors and assess their effectiveness.

5- Risk Assessment and Failure Analysis

• Risk Assessment: Techniques for assessing the risk of corrosion in different environments and applications.
• Failure Analysis:
  • Corrosion Failures: Identifying and analyzing causes of material failure due to corrosion.
  • Case Studies: Reviewing real-world examples of corrosion-related failures and lessons learned.

6- Compliance with NACE MR0175 / ISO 15156

• Material Certification: Understanding how to verify that materials meet the requirements of NACE MR0175 / ISO 15156.
• Documentation: Maintaining records and documentation to demonstrate compliance with the standards.
• Audit and Inspection: Procedures for auditing materials and corrosion control practices to ensure ongoing compliance.

7- Industry Best Practices and Emerging Technologies

• Best Practices: Industry best practices for material selection, corrosion control, and maintenance.
• Emerging Technologies: New developments in materials and corrosion control technologies that are relevant to sour service environments.

Course Learning Outcomes:

• Understand the principles of corrosion and the importance of selecting appropriate materials for corrosive environments.
• Apply NACE MR0175 / ISO 15156 standards to material selection and corrosion control practices.
• Implement corrosion control methods such as coatings, cathodic protection, and inhibitors.
• Conduct risk assessments and analyze failures to improve corrosion control strategies.
• Ensure compliance with industry standards and maintain proper documentation.

Target Audience:

• Corrosion Engineers and Specialists: Professionals responsible for selecting materials and implementing corrosion control measures.
• Material Scientists and Engineers: Involved in the research and development of materials for harsh environments.
• Maintenance Supervisors: Overseeing corrosion control practices and ensuring equipment integrity.
• Quality Control (QC) Inspectors: Ensuring materials and coatings meet required standards and specifications.

Certification:

Upon successful completion of the course, participants may receive certification in Corrosion Control and Material Selection based on NACE MR0175 / ISO 15156, demonstrating their expertise in applying these standards to ensure effective corrosion control in challenging environments.