Neptune Marine Services’ Subsea Stabilisation division has completed the structural grouting of the Riser Support Structure (RSS) under contract to a subsidiary of McDermott International, Inc. for the INPEX-operated Ichthys LNG Project, off Australia.
McDermott is the appointed main contractor for the subsea Umbilicals, Risers and Flowlines engineering, procurement, construction and installation portion of the project. McDermott awarded two subcontracts to Neptune in September 2014.
The project was the first of this complexity performed by Neptune. A team of seven Neptune personnel, including two engineers, performed 24 hour operations to complete the work on schedule.
The offshore works started following the testing of the grout mix design at independent NATA accredited facilities. Subsequent to the project completion, testing was undertaken and the structural grouting passed all compressive strength requirements.
Following completion of the RSS scope of work, Neptune completed the initial campaign of subsea grouting of the scour protection systems (SPS). The SPS were designed, fabricated and installed to the subsea structures prior to installation.
Neptune Chief Executive Officer, Robin King, said: “This project was unique and demonstrates Neptune’s capabilities in structural grouting. Our proven capabilities, combined with the successful completion of this project, have led to further structural grouting scopes with other key clients.”