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51 - LONG - Long-Term Programs
LONG 525 - Diploma in Welding Technology (13 Weeks)
Course Description
This course covers topics related to well servicing methods. Participants will get a detailed view of different phenomenus asscociated with welding. It covers fluxes and their types. It conists of 9 weeks theortetical training and 4 weeks of practical sessions.
The minimum number of participants required to hold this course is 5.
Course Objectives
- Learn the fundementals of welding
- Solid-State Transformations in Weldments
- Be familiar with carbon Arc welding operation and applications
- Get to know the principles Electron-Beam Welding
Who Should Attend?
- Drillers
- Engineers
- Technicians
- Anyone involved in well control process
Course Details/Schedule
Week 1
Fundamentals of Welding
- Energy Sources Used for FusionWelding
- Energy-Source Intensity
Heat Flow in Fusion Welding
- Engineering Solutions and Empirical Correlation
- Example 1: Welding of 5 mm (0.2 in.) Thick Low-Carbon Steels
- Example 2: Welding of 6 mm (0.24 in.) Thick Low-Carbon Steels.
- Example 3: Cooling Rate for the Location at Distance y (in cm) from the Centerline
- Example 4: Solidification Rate Parametric Effects
Thermophysical Properties of Selected Engineering Materials
Fluid Flow Phenomena During Welding
- Mass Transport in the Arc Deep-Penetration
- Electron Beam and Laser Welds Gas Metal Arc Welding
- Submerged Arc Welding
Transfer of Heat and Mass to the Base Metal in Gas-Metal Arc Welding
- Heat Transfer
- Mass Transfer
- Procedure Development
Arc Physics of Gas-Tungsten Arc Welding
- Ratings and Standards Power Source Selection
- Source Characteristics Pulsed Power Supplies
- Resistance Welding Power Sources
- Electron-Beam Welding Power Sources
Week 2
Fundamentals of Weld Solidification
- Comparison of Casting and Welding Solidification
- Solidification of Alloy Welds (Constitutional Supercooling)
- Development of Weld Microstructures
- Effect of Welding Rate on Weld Pool Shape and Microstructure
- Nonequilibrium Effects: High-Rate Weld Solidification and Composition Banding
Nature and Behavior of Fluxes Used for Welding
- Equilibrium Parameters Effect of Oxygen
- Basicity Index
- Pyrochemical Kinetics During Welding
- Alloy Modification
Types of Fluxes
- Fluxes Used For SMAW Applications
- Typical Functions and Compositions of Constituents for Selected Mild Steel SMAW Electrode Coatings
- Typical Composition of Minerals Used In SMAW Electrode Coatings
- Chemical Composition of Coverings Used in Electrodes For SMAW Welding Of Mild Steels and Low-Alloy Steels
- Typical Flux Compositions of Available Self-Shielded SMAW Electrodes.
- Typical Compositions of SMAW Fluxes
Shielding Gases for Welding
- Basic Properties of a Shielding Gas
- Typical Gases Purity and Moisture Content of Shielding
- Characteristics of the Components of a Shielding Gas Blend
- Shielding Gas Selection
- Accuracy of Gas Blends Shielding Gases for GMAW
- Recommended Shielding Gas Selection for GMAW
- Shielding Gas Selection for FCAW
- Shielding Gas Selection for GTAW
- Shielding Gas Selection for PAW
- Recommended Guidelines for Selecting PAW Shielding Gases
- Influence of Shielding Gas on Weld Mechanical Properties
- Shielding Gas and Fume Generation
- Self-Shielded Flux-Cored Arc Welding
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8
Week 9
Week 10
Week 11
Week 12
Week 13
