Course Objectives:

By the end of this training, participants will be able to:

1. Introduction to Corrosion in Downhole Tubing

• Understand the impact of corrosion on the integrity and operational performance of downhole tubing.
• Define types of corrosion (general, pitting, stress corrosion cracking, etc.) and how they affect downhole equipment.
• Recognize the causes and contributing factors to downhole corrosion in oil and gas wells.

2. Corrosion Mechanisms and Chemistry in Downhole Conditions

• Learn about the key factors contributing to downhole corrosion, including pressure, temperature, fluid composition, and chemical reactions.
• Understand the role of hydrogen sulfide (H2S), carbon dioxide (CO2), and other corrosive agents in downhole environments.
• Examine the electrochemical processes that occur in downhole tubing, such as galvanic corrosion and cathodic protection.

3. Materials Selection for Downhole Tubing

• Explore different materials used in the construction of downhole tubing and their susceptibility to corrosion.
• Learn how alloy compositions, coatings, and metallurgy affect the performance and longevity of tubing.
• Understand material standards and specifications for downhole operations (e.g., NACE, API).

4. Corrosion Monitoring and Detection Techniques

• Implement methods for monitoring and detecting corrosion in downhole tubing, including corrosion probes, electrical resistance, and ultrasonic testing.
• Understand how to use downhole monitoring systems and sensors to assess corrosion rates in real-time.
• Explore advanced monitoring technologies, such as fiber optic sensing, to detect corrosion and wear in tubing.

5. Corrosion Prevention and Mitigation Strategies

• Learn corrosion control methods, including the use of corrosion inhibitors, chemical treatments, and proper well stimulation techniques.
• Understand the importance of cathodic protection systems (anode/cathode systems) for mitigating corrosion in downhole tubing.
• Develop operational procedures for minimizing corrosion risks, such as controlling water production, managing gas lift systems, and adjusting pH levels.

6. Design Considerations to Prevent Corrosion

• Incorporate corrosion-resistant materials and design features into the planning of downhole tubing systems.
• Explore tubing and casing design techniques that reduce the risk of corrosion, such as proper casing spacing, coating applications, and joint sealing methods.
• Learn about the importance of pressure and temperature management to reduce corrosion potential.

7. Managing Corrosion in Production and Injection Wells

• Understand the challenges of corrosion in production wells versus injection wells (e.g., water injection or acidizing).
• Explore specific corrosion issues in gas lift systems, water flooding, and hydrocarbon production.
• Implement risk-based integrity management strategies for wells exposed to aggressive corrosive environments.

8. Corrosion and Scale Formation: Interactions and Impact

• Examine the relationship between corrosion and scale formation in downhole tubing.
• Learn the impact of scale buildup (e.g., calcium carbonate, barium sulfate) on tubing integrity and corrosion.
• Develop combined strategies for preventing both corrosion and scale deposition in downhole environments.

9. Case Studies and Real-World Applications

• Analyze case studies of downhole tubing failures due to corrosion and the lessons learned from these incidents.
• Review successful corrosion management programs and best practices used in various regions or well types (shallow, deepwater, high-pressure, high-temperature, etc.).
• Discuss emerging technologies and innovations in corrosion detection, prevention, and mitigation.

10. Maintenance and Remediation Techniques

• Learn about remedial actions to address corrosion damage in downhole tubing, including tubing replacement, internal coating application, and re-perforation.
• Understand how to assess the damage caused by corrosion and decide on the best intervention strategy.
• Examine industry-standard repair techniques and the use of mechanical and chemical repair solutions.

Target Audience

This training is designed for professionals responsible for the management, design, operation, and maintenance of downhole tubing systems. The target audience includes:

• Corrosion Engineers
• Well Integrity Engineers
• Material and Metallurgical Engineers

• Drilling Engineers
• Completion Engineers
• Production Engineers

• Field Technicians and Operators
• Maintenance Engineers for Well Equipment
• Production Technicians