Offshore Mechanical Maintenance


upon completion of the course, participants will be able to:

  • know the basics of technical drawing, characterize a part, a mechanical assembly,
  • identify the different mechanical construction materials,
  • know the fundamentals of mechanical system design, the main assemblies (bearing assemblies),
  • know the main power transmission elements (gears, joints…), wisely use the metrology devices used in workshop,
  • describe the mechanical strength, chemical resistance and thermal resistance.


    • Technical drawing agreement: 2D and isometric views, projections, section and cut-away views, perspectives, technical vocabulary.
    • Dimensioning of parts and mechanical systems, ISO tolerances and main adjustments.
    • Dimensional tolerances and clearance.
    • Geometric tolerances and surface condition characterization.
    • Presentation of the tools in a metrology shop, performances and rules of use.
    • Practical exercises:
    • Dimensioning and full geometric control of a pump shaft.
    • Understanding of a simple machine cut-away view.
    • Representation of a machine element in 2D projection and perspectives.
    • Materials used in the Oil & Gas industry: identification of the metals, alloys, plastics and composites, operating and maintenance rules.
    • Expansion and effects on the assemblies.
    • Manufacturing process of metallic parts, molding, forging.
    • Frequent screwed, bolted, welded and stuck constructions.
    • Characterization of threads and bores, petroleum thread pitch.
    • Removable power transmission: keys, gears, hinged connections (joint…), cone interface.
    • Non-removable power transmission: shrink fitting.
    • Bearings: characterization, types, identification, assembly rules.
    • Seals of static systems (between flanges) and dynamic systems (mechanical seals on bearing boxes), analysis and selection of the materials.
    • Pipe, valves and main line accessories: identification, operation and maintenance rules.
    • Practical exercises: selection, identification and assembly of the ball bearings in a simple process pump.
    • Tightening: importance of torque, order, techniques.
    • Alignment: understanding the operation, controlling the mating of piping.
    • Lubrication: properties and characterization of common oil and greases, lubricating systems.
    • Controlling the condition of parts at disassembly: corrosion, defaults, mating, wear, rupture.
    • Controlling the clearances at disassembly.
    • Practical exercise: mechanical completion of a pump on site (control and implementation).
    • Surface treatments and coatings.
    • Overlay welding and reconstitution.
    • Machining.
    • Casing repair with staples.
    • Expertise controlling: dye penetrant testing, metrology, ultrasonic, hardness testing.
    • Test and requalification: balancing, test, control of performances.

Course Duration 48hrs/4weeks

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