Modern Cathodic Protection Systems: Design, Fabrication, installation, Testing and Repair

Introduction

The aim of this workshop is to provide participants with a solid grounding in Applied Cathodic Protection Engineering. This workshop provides theoretical knowledge and fundamentals for testing on both sacrificial and impressed current Cathodic Protection systems for a wide range of industrial structures including buried and subsea pipelines, storage tanks, petrochemical plants and concrete structures.

Objectives

 

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

• Recognize the nature of corrosion and the various effects of soil condition and system protection
• Apply systematic techniques on the design, fabrication, installation, testing and repair of modern cathodic protection systems
• Carryout cathodic protection and measurement and recognize their importance in the effectiveness of cathodic protection system
• Discuss offshore cathodic protection design, operational integrity impact in offshore structures, CP anodes retrofitting forecast and replacement programs
• Identify the associated aspects of corrosion control such as the materials selection, coatings and sacrificial cathodic protection including its design, types, selection and fabrication
• Discuss impressed current cathodic protection including their design, use and application
• Illustrate cathodic protection system design for tanks and explain the secondary containment, double bottom tanks and its monitoring issues
• Apply the impressed current cathodic protection design in plants and explain stray current interaction with other structures
• Identify the corrosion and corrosion control present in reinforces concrete and employ the proper monitoring procedures of cathodic protection systems
• Employ the specialized survey techniques used in the evaluation of data for cathodic protection and demonstrate cathodic programmes
• Illustrate the technique of in-line cathodic protection current measurement (CPCM) to evaluate CP efficiency and possible interference currents as well as cathodic protection rectifiers

Training Methodology

This is an interactive course. There will be open question and answer sessions, regular group exercises and activities, videos, case studies and presentations on best practice. Participants will have the opportunity to share with the facilitator and other participants on what works well and not so well for them, as well as work on issues from their own organizations.

Who Should Attend?

This program will benefit anyone who is responsible for Cathodic Protection systems, measuring the effectiveness of Cathodic Protection systems and/or recording this data, including Pipeline design engineers, Pipeline Operations engineers, Corrosion Engineers, Materials Engineers, Design Engineers, Mechanical Engineers, Inspection Engineers, Chemical Engineers, Marine Maintenance people, Offshore Structure design and Operation people, CP field personnel, technicians, and supervisors.

Course Outline

1 Introduction and overview of corrosion technology

• Corrosion Theory
• Corrosion Identification & methods of control
• Material selection and design.
• Protective coatings, paint, metallic
• tapes and cementicious
• Cathodic protection, theory and practice.

2 Corrosion – Theory, Identification & Methods of Control

• What is corrosion?
• What is the cost to industry?
• How does it take place?
• What drives the corrosion process?
• What are the distinct types of corrosion?
• What methods can we use to control it?
• The session include a number of practical demonstration of the
• corrosion process and some actual case studies.

3 Essential Electrical theory

• A review of electrical theory as applicable to Cathodic Protection
• Ohms and Kirchoff’s and other relevant laws

 4 Cathodic Protection.

• Theoretical basis
• Cathodic Protection criteria
• Measuring potentials for protection criteria.

5 Sacrificial Anode CP Systems

• Anode requirements.
• Anode materials and performance characteristics.
• System design and installation
• System maintenance

6 Impressed Curret systems

• Impressed current anodes
• Impressed current anodes for buried applications.
• Ground beds for buried structures
• System design and installation
• System maintenance.

7 Current distribution and interference issues

• Corrosion damage under disbanded coatings
• General current distribution and attenuation
• Stray currents

8 Monitoring the performance of CP systems

• CP system hardware performance monitoring
• Structure condition monitoring
• Identify the types of corrosion and their cause(s).
• Determine the most practical method of mitigating the corrosion