MARINE RISERS D & I, REPAIR & RECERTIFICATION

Location:  Perth                                                       Date:  2019

Our client – Oil States Industries

A Marine Riser String from one of the MODU’s currently drilling off the WA north west coast was sent to WPF for full D & I, repair, re-assembly, re-coating, testing and re-certification. This was the first time a project of this nature and scale had ever been undertaken in Australia.

WPF’s scope of work included:

• Engineering and project management.
• Yard preparation.
• Design and build special tooling for the project.
• Provide cranage and other machinery and handling equipment for the project.
• Receipt and lay down a total of fifty-seven x 75ft risers and spare parts.
• A full dismantle and clean up prior to inspection by OEM.
• UHP cleaning of main tube, choke & kill line internals.
• Inspection and repairs to buoyancy modules.
• Assistance with inspection by OEM – including visual, NDT, PMI, dimensional and hardness testing.
• Major repairs where necessary and hand dressing of minor damage.
• Parts and seals replacement where necessary.
• Replacement of damaged/corroded fasteners with new DROPS compliant fasteners.
• Paint repairs to all corroded areas of main tubes, choke, kill and booster lines.
• Pressure testing of all auxiliary lines.
• Reassembly in accordance with OEM procedures including buoyancy modules.
• UHP washing and sealing of hydraulic lines
• Installation of new protectors onto all main tube and auxiliary line ends.
• A full DROPS compliance survey prior to load out.
• Protect and prepare risers for long term storage and load out.
• QA documentation as required.

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