CourseNaval, Offshore & Sports Nautical Applications open

Course in Subsea Welding and Advanced Techniques

Online course of 300 hours in subsea welding and advanced techniques. 6 modules covering wet and dry hyperbaric welding, friction and laser techniques, quality, inspection and safety to AWS D3.6M and ISO 15618, and an underwater repair project, with an assigned technical tutor.

Duration3 months
ModeOnline
LanguageEnglish
Start datesSet by the faculty
AwardSEIUM Institute certificate
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Learning outcomes

What you will be able to do

01

Explain the metallurgical effects of pressure and water on welding.

02

Apply the wet welding technique in accordance with AWS D3.6M.

03

Plan dry hyperbaric welds in habitats and chambers.

04

Compare advanced techniques such as friction welding and laser welding.

05

Qualify procedures and welder-divers in accordance with ISO 15618.

06

Define inspection and safety plans for underwater work.

07

Design a welded repair of a subsea structure.

Profile

Who it's for

  • Welding engineers who want to specialise in subsea welding and advanced techniques.
  • Welder-divers who want to specialise in subsea welding and advanced techniques.
  • Underwater welding inspectors who want to specialise in subsea welding and advanced techniques.
  • Diving supervisors who want to specialise in subsea welding and advanced techniques.
  • Offshore repair engineers who want to specialise in subsea welding and advanced techniques.
  • Welding quality coordinators who want to specialise in subsea welding and advanced techniques.
  • Engineering or science graduates looking to enter the oil and gas industry.
Standards & tools

What you'll work with

  • AWS D3.6M (specification for underwater welding)
  • ISO 15618-1 (qualification of diver-welders for wet hyperbaric welding)
  • ISO 15618-2 (qualification of diver-welders for dry hyperbaric welding)
  • ISO 15614-1 (specification and qualification of welding procedures)
  • IMCA D 014 (international code of practice for offshore diving)
  • DNV-RP-F113 (subsea pipeline repair)
  • ISO 9606-1 (qualification testing of welders: steels)
  • ESI SYSWELD
  • Simufact Welding
  • Abaqus
  • Thermo-Calc
Syllabus

6 modules

  1. 1.1Wet, dry hyperbaric and local cavity welding
  2. 1.2Effects of pressure and rapid cooling
  3. 1.3Diffusible hydrogen and cold cracking
  4. 1.4Porosity and arc stability
  5. 1.5Applications in structural repair
  6. 1.6Evolution of hyperbaric welding
  7. 1.7Saturation diving and its risks
  8. 1.8Alternatives using mechanical connectors
  9. 1.9Applicable qualification framework
  10. 1.10Case study: method for repairing a tubular member
  1. 2.1Waterproofed covered electrodes
  2. 2.2Manual metal arc technique in wet conditions
  3. 2.3Wet welding with flux-cored wire
  4. 2.4AWS D3.6M weld quality classes
  5. 2.5Carbon equivalent and hardenability
  6. 2.6Temper bead technique
  7. 2.7Hydrogen control in the weld metal
  8. 2.8Welding of anodes and attachments
  9. 2.9Inspection of wet welds
  10. 2.10Lab: microstructure of a wet weld
  1. 3.1Welding habitats and chambers
  2. 3.2Hyperbaric TIG and MIG processes
  3. 3.3Influence of pressure on the arc
  4. 3.4Shielding gases and heliox mixtures
  5. 3.5Preheating and thermal control
  6. 3.6Welding of pipeline tie-ins
  7. 3.7Qualification of hyperbaric procedures
  8. 3.8Diverless automated systems
  9. 3.9Robotic welding at great depth
  10. 3.10Workshop: sequence of a hyperbaric tie-in
  1. 4.1Friction stud welding
  2. 4.2Friction hydro pillar processing (hole filling)
  3. 4.3Underwater laser welding
  4. 4.4Local dry chamber welding
  5. 4.5Subsea hot taps
  6. 4.6Thermal and abrasive water jet cutting
  7. 4.7Additive manufacturing for repairs
  8. 4.8Mechanical connections and clamps
  9. 4.9Technical and economic comparison between techniques
  10. 4.10Practical: choosing a technique by depth and material
  1. 5.1Welding procedure specification (WPS)
  2. 5.2Qualification of welder-divers
  3. 5.3Mechanical and hardness tests
  4. 5.4Visual and magnetic particle inspection
  5. 5.5Ultrasonic testing by diver and by ROV
  6. 5.6Electrical hazards underwater
  7. 5.7Safety in commercial diving
  8. 5.8Document control for the repair
  9. 5.9Lessons learned from repairs
  10. 5.10Case study: repair of a jacket node
  1. 6.1Damage diagnosis
  2. 6.2Selecting the technique
  3. 6.3Repair design
  4. 6.4Welding procedure
  5. 6.5Qualification plan
  6. 6.6Inspection plan
  7. 6.7Risk assessment
  8. 6.8Cost estimate
  9. 6.9Report and presentation
  10. 6.10Final review with the tutor
Methodology, software & labs

How you'll learn

A 100% online programme on the SEIUM campus, with downloadable material, recorded classes and an assigned technical tutor. There are no fixed timetables: you progress at your own pace within each intake, so you can combine it with your job.

Each module combines theory, guided reading of the original standard and applied exercises. The working software is ESI SYSWELD, Simufact Welding, Abaqus and Thermo-Calc, in free, academic or evaluation versions. Testing is studied through real procedures for qualifying a wet welding procedure, inspecting welds with underwater techniques and designing an underwater structural repair. Assessment is continuous by module plus the final capstone project.

Standards covered: AWS D3.6M, ISO 15618-1, ISO 15618-2, ISO 15614-1, IMCA D 014, DNV-RP-F113 and ISO 9606-1.

Assigned technical tutor:every module ends with a deliverable that your tutor marks individually.
Standards-based learning:guided reading of AWS D3.6M, ISO 15618-1 and ISO 15618-2 applied to real cases, not as a theoretical annex.
Industry software:ESI SYSWELD, Simufact Welding, Abaqus and Thermo-Calc, in free, academic or evaluation versions.
Final project:an underwater repair project, from damage diagnosis to welding procedure, qualification, inspection and cost estimate, reviewed by your tutor.
Flexible format:100% online, no fixed timetables, compatible with full-time work.
Capstone project

Build it end to end

Your final project follows the real engineering workflow, step by step, reviewed by your tutor.

Damage diagnosis
Diagnose the damage to the subsea structure and define the repair requirements.
Technique selection
Select the welding technique according to depth, material and cost.
Repair and procedure design
Design the repair and write the welding procedure specification.
Qualification and inspection plans
Draw up the qualification, inspection and risk assessment plans for the repair.
Final project
Complete underwater repair project with cost estimate, reviewed by your tutor.
Career opportunities

Where this takes you

Welding engineerWelder-diverUnderwater welding inspectorDiving supervisorOffshore repair engineerWelding quality coordinator
Admissions & scholarships

Requirements

  • No prior qualification is required.
  • An internet connection and a computer capable of running the programme software.
  • English sufficient to read technical standards.

Ready to start?

Send your application today. Our admissions team replies within 72 hours with your study plan and funding options.

FAQ

Frequently asked questions

The course totals 300 hours over 3 months. You set your own pace within each intake, and your tutor helps you plan the workload around your job.

You will work with ESI SYSWELD, Simufact Welding, Abaqus and Thermo-Calc. Free, academic or evaluation versions are used, and your tutor indicates the free alternative where one exists.

A SEIUM Institute diploma, awarded on passing the continuous assessment and the final project. It is SEIUM's own qualification, not an official state degree; its recognition depends on the programme completed and the regulations of each country.

Yes. Modules passed are recognised in a higher programme in the same area (postgraduate diploma or master's). Ask about the recognition policy when you enrol.

No prior qualification is required. You need an internet connection, a computer capable of running the software, and English sufficient to read technical standards.

Start dates are set by SEIUM's faculty for each intake. Our admissions team will confirm the next available date when you apply.

Course in Subsea Welding and Advanced TechniquesEnrol
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