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    CSO wins Echo-Yodel installation

    News // November 3, 2000
    Coflexip Stena Offshore's Australian subsidiary, Coflexip Stena Offshore Asia Pacific (CSOAP), has been awarded the subsea installation contract for the Echo-Yodel project by Woodside Petroleum.

    The contract includes pipelay, caisson installation, umbilical installation and subsea tie-ins.

    The Echo-Yodel development lies in approximately 140m of water 23km south-west of Woodside's existing Goodwyn Alpha gas production platform (GWA), which is located on the North West Shelf of Australia. The Echo-Yodel field is being developed using subseafacilities to produce gas and condensate to GWA for processing.

    CSOAP's scope of work includes all project management, engineering and construction support from its local Fremantle base, with responsibility for the transportation and installation of a 23km, 12-inch 13% Cr export pipeline, a subsea electrohydraulic umbilical and a new riser caisson, which weighs approx. 160tons on GWA. Work is due to commence immediately and installation is scheduled to commence Q4 2001.

    CSOAP will perform all works utilising the Group's specialist reelship CSO Apache and the large dynamically positioned diving support vessel CSO Venturer. An onshore temporary pipe spoolbase will be established in the Dampier area (Western Australia) tofabricate the pipe strings which will be spooled onto the CSO Apache's reel for transport and installation offshore. The CSO Venturer will install the caisson and carry out all diving and subsea construction support work.

    The Echo-Yodel contract also contains options for additional work, including the abandonment of eight subsea wellheads, the installation of the Lambert 5 and Laminaria Phase 2 subsea facilities and the support of the North Rankin Bypass Works. In addition there is a stated objective for the two companies to review and develop beneficial ways of working together on future projects.

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