Topic outline

  • Basic Corrosion (NACE)

    This course provides an overview of all significant aspects and considerations of basic corrosion for engineers, managers, inspectors, supervisors, salespersons and technicians and those who need a basic understanding of corrosion
    • Training Methodology & Objectives

      Training Methodology

      This Trainee-centered course includes the following training methodologies:-

      • Talking presentation Slides (PPT with audio)
      • Simulation & Animation
      • Exercises
      • Videos
      • Case Studies
      • Gamification (learning through games)
      • Quizzes, Pre-test & Post-test

      Course Objectives

      After completing the course, the employee will:-

      Apply and gain a basic knowledge on corrosion Discuss corrosion covering the nature concept and mechanism
      Recognize various types of corrosion and employ corrosion inspection and monitoring Describe manifestations of corrosion, electrochemical attack, electrochemical corrosion cell, general (uniform) corrosion, localized attack, pitting corrosion and etc.
      Identify the factors effecting galvanic corrosion as well as carryout selective leaching and control of intergranular corrosion Recognize typical face of a corrosion fatigue break in a sucker rod body and basic corrosion mechanisms
      Determine what species cause corrosion in petroleum production including the effect of oxygen, carbon dioxide, hydrogen sulphide, temperature, pressure, velocity and pH Identify the variation of corrosion rate with pH, effect of dissolved solids, basic corrosion mechanisms and major causes of corrosion
      Discuss the causes of petroleum related failures (1970’s study), CO2 corrosion reactions and effect of CO2 partial pressure on corrosion rate Describe API/SPEC 5A, 5AC, 5AX tubing and casing including CRA grades (ISO 13680)
      Determine hydrogen sulfide partial pressure (bar) and describe domain diagram for super 13Cr, SSC failure of downhole and oxygen in surface waters Illustrate choke “bean” erosion by produced formation sand including the effect of pitting on penetration rate
      Discuss the acid corrosion rates on alloys and increasing rate of penetration with pit development Identify sulfate reducing bacteria and corrosion resistant alloys
      Recognize cracking initiated at a stress riser, slow crack growth, fast crack growth
      • Course Description

        This E-learning course is designed to provide participants with a basic overview of corrosion. It covers the nature concept and mechanism of corrosion; the various types of corrosion; the corrosion inspection and monitoring; the manifestations of corrosion, electrochemical attack, electrochemical corrosion cell, general (uniform) corrosion, localized attack, pitting corrosion, etc.; the factors effecting galvanic corrosion; the selective leaching and control of intergranular corrosion; the typical face of a corrosion fatigue break in a sucker rod body and basic corrosion mechanisms; the effect of oxygen, carbon dioxide, hydrogen sulphide, temperature, pressure, velocity and pH; the variation of corrosion rate with pH, effect of dissolved solids, basic corrosion mechanisms and major causes of corrosion; and the causes of petroleum related failures, CO2 corrosion reactions and effect of CO2 partial pressure on corrosion rate

        During this course, participants will learn the API/SPEC 5A, 5AC, 5AX tubing and casing including CRA grades; the hydrogen sulfide partial pressure (bar), domain diagram for super 13Cr, SSC failure of downhole and oxygen in surface waters; the choke “bean” erosion by produced formation sand; the effect of pitting on penetration rate; the acid corrosion rates on alloys and increasing rate of penetration with pit development; the sulfate reducing bacteria and corrosion resistant alloys; and the cracking initiated at a stress riser, slow crack growth, fast crack growth

        • Module 1 - Understanding of Corrosion Unit 1 Corrosion Element 1 Corrosion Basics

          Contents:
            • Introduction
            • Corrosion Mechanism 
            • Atmospheric Corrosion
            • Form of Corrosion 
            • Uniform Corrosion
            • Pitting Corrosion
            • Galvanized Corrosion
            • Erosion Corrosion
            • Cavitation Corrosion
            • Fretting Corrosion
            • Inter – Granular Corrosion
            • Exfoliation Corrosion 
            • De-alloying or Selective Leaching
            • Stress Corrosion Cracking (SCC) 
            • Corrosion of The Metal
            • Corrosion of Alloy 
            • Corrosion in Soil
            • Corrosion Inspection and Monitoring 
            • Module Quiz
          • Module 2 - Manifestations Of Corrosion

            Contents:
              • Electrochemical Attack
              • Electrochemical Corrosion Cell
              • Manifestations of Corrosion
              • General (Uniform) Corrosion
              • Localised Attack
              • Pitting Corrosion
              • Crevice (Underdeposit) Corrosion
              • Mechanism of Crevice Corrosion
              • Galvanic Series in Seawater
              • Galvanic Attack
              • Galvanic Corrosion
              • Factors Effecting Galvanic Corrosion
              • Selective Leaching
              • Graphitic Corrosion
              • Intergranular Corrosion
              • Intergranular Attack Weld Decay
              • Intergranular Attack
              • Control of Intergranular Corrosion
              • Erosion - Corrosion
              • Velocity Effect
              • Erosion Corrosion
              • Cavitation
              • Velocity Phenomena
              • Environmental Cracking
              • Stress Corrosion Cracking
              • Hydrogen Blistering
              • Hydrogen Induced Cracking
              • Sulphide SCC
              • Corrosion Fatigue
              • Typical Face of a Corrosion Fatigue Break in a Sucker Rod Body
              • Corrosion Fatigue 
              • Module Quiz
            • Module 3 - Basic Corrosion Mechanisms

              Contents:
                • Why Corrosion Occurs
                • Galvanic Series
                • How Corrosion Occurs
                • Corrosion Cell
                • How Corrosion Occurs
                • How to Control Corrosion
                • What Species Cause Corrosion in Petroleum Production?
                • Effect of Oxygen
                • Oxygen Corrosion
                • Effect of Carbon Dioxide
                • CO2 Corrosion
                • CO2 Corrosion - Prediction 
                • Effect of Hydrogen Sulphide
                • H2S Corrosion
                • Bacterial Corrosion
                • Bacterial Corrosion - SRB
                • How Fast Will Corrosion Occur?
                • Effect of Temperature on Corrosion
                • Effect of Pressure
                • Effect of Velocity
                • Effect of pH
                • The Variation of Corrosion Rate With pH
                • Effect of Dissolved Solids 
                • Basic Corrosion Mechanisms
                • Module Quiz
              • Module 4 - Corrosion

                Contents:
                  • Corrosion Control
                  • Major Causes of Corrosion
                  • Other Factors
                  • Chemical Corrosion
                  • Corrosion Recognition
                  • 1970’s Industry Study of Failures
                  • Causes of Petroleum Related Failures (1970’s study)
                  • Corrosion Types
                  • CO2 Corrosion Reactions
                  • CO2 Partial Pressure
                  • CO2 Corrosion
                  • CO2 Corrosion Isoplot
                  • Chloride Stress Cracking
                  • Stress Sulfide Corrosion
                  • Domain Diagram for C110
                  • CRA Grades (ISO 13680 except *)
                  • Hydrogen Sulfide Corrosion
                  • H2S Corrosion
                  • Domain Diagram for Super 13Cr
                  • SSC Failure of Downhole Tubular String in Louisiana
                  • Crevice Corrosion
                  • O2 Corrosion
                  • Oxygen in Surface Waters
                  • Maximum Velocities
                  • Corrosion: Water In Sweet Gas
                  • Welds
                  • CO2 Injection Materials
                  • Biological Corrosion
                  • Sulfate Reducing Bacteria
                  • Corrosion Resistant Alloys
                  • Erskine – Failure of 25Cr Duplex SS
                  • High Island – Failure of 13Cr Alloy
                  • CT Corrosion Problems
                  • Well Failure Statistics
                  • Acid Inhibitor Mixing
                  • Inhibitor Mixing
                  • Corrosion in Packer Fluids
                  • Electrochemical
                  • Galvanic Series in Sea Water
                  • Controlling Corrosion
                  • Corrosion Films
                  • Chromium
                  • Tubular Selection Criteria
                  • Backup Slides
                  • Module Quiz
                • Module 5 - Cathodic Protection

                  Contents:
                    • How it Works
                    • Sacrificial Anode System
                    • Impressed Current System
                    • Criteria of Cathodic Protection
                    • Current Intensity Needed For Cathodic Protection
                    • Internal +  External
                    • Sacrificial Anode Systems
                    • Impressed Current System
                    • Impressed Current Anodes
                    • Silicon Iron Anodes
                    • Solar Powered Cathodic Protection Station
                    • Insulating Flange Kits
                    • Referance Electrodes
                    • Insulater Spacers for Casings
                    • Casing End Seals
                    • Zinc Ribbon
                    • Serial Dilution
                    • Sulphate Reducing Bacteria
                  • Module 6 - Corrosion Control and Inhibitor Types

                    Contents:
                      • Conditions Necessary for Corrosion
                      • Control
                      • Cathodic Protection
                      • Definition
                      • Types of Inhibitor Used in the Oilfield
                      • How do Inhibitors Work?
                      • Inhibitor Chemistry
                      • Amide/Imidazolines
                      • Quaternary Ammonium Compounds
                      • Nitrogen Heterocyclics
                      • Salts of Nitrogenous Molecules with Carboxylic Acids
                      • Phosphate Esters
                      • Polyoxyalkylated Amines
                      • New Chemistries
                      • New Chemistries - Green Inhibitors, What is "Green"?
                      • New Chemistries "Green" Inhibitor Research
                      • Inhibitor Formulations
                      • Classification Of Inhibitors
                      • Inhibitor Properties
                      • Summary
                    • Module 7 - Application of Inhibitors

                      Contents:
                        • Summary
                        • Methods Of Application
                        • Continuous
                        • Continuous Treatment through Small Bore Tubing
                        • Chemical Injection Valves
                        • Continuous Injection into Annulus Top
                        • Chemical Injection via the Gas Lift System
                        • Oil Wells - Continuous Major Points to Consider
                        • Squeeze
                        • Schematic Of A Typical Inhibitor Squeeze Treatment In An Oil Well
                        • Diagram Representation of the Squeeze Treatment
                        • Oil Wells - Squeeze Treatment Major Points to Consider
                        • Batch
                        • Batch Treatment By Tubing Displacement
                        • Batch Treatment - Traditional and Weighted Inhibitor
                        • Chemical Injection via Injection Valves
                        • Oil Wells - Batch Treatment Major Points to Consider
                        • Gas Wells
                        • Treatment Of Gas Wells
                        • Gas Wells - Major Points to Consider
                        • Oil Gathering Pipelines
                        • Oil Pipelines
                        • Recommended Dosage
                        • Start-up Programmes
                        • Environmentally Acceptable Corrosion Inhibitors
                        • Inhibitor Development
                        • Environmentally Acceptable Inhibitors
                      • Module 8 - Protective Coatings

                        Contents:
                          • Types of Coatings
                          • Wrapping & Sleeves
                          • Corrosion Control Techniques
                          • Surface Preparation
                          • Surface Profile
                          • Surface Cleanliness International Standards
                          • Surface Cleanliness
                          • Water Jetting
                          • Abrasive Blasting
                          • Grit Blasting
                          • Chemical Composition of Paints
                          • Painting Application
                          • Paint Application Techniques
                          • Spray Application
                          • Air Spray
                          • Airless Spray
                          • Electrostatic Painting
                          • Electrostatic Spray
                          • Painting System (Cycle)
                          • 3-Layer Paint System
                          • Pipeline Coating System
                          • Keys of Coating Success
                          • Corrosion Control Techniques
                          • Dew Point Measurement
                          • Key to Successful Painting
                          • Painting Data Sheet
                          • Coating Properties
                          • Paint Inspection
                          • Surface Cleanliness Inspection
                          • Module Quiz
                        • Module 9 - Tips and Handy Hints

                          Contents:
                            • Dilution
                            • Compatibility
                            • Injection Points
                            • Storage
                            • Safety
                            • Application
                            • Common Misconceptions
                          • Post-Test

                            Kindly complete the post-test to assess your knowledge about the topic after the course.