Arctic Directory: Global Diving & Salvage ROV group travels to Hawaii

Global Diving & Salvage Inc. said its ROV team, operating off of the Healy Tibbitts 544 crane barge, was tasked with restoring the pipeline to an as-designed condition. Many of the tasks required had never been done by an ROV and purpose built tools and fixtures had to be built to perform the work.

All of the tooling and techniques were tested in Seattle prior to departure. Tasks included; removal of marine growth at new clamp locations, cutting 1-1/2” stud link chain, installation of hydraulic actuated clamps, replacement and tensioning of two 500 foot sections of 1-1/2” stud link chain from newly installed clamps to 40 ton gravity anchors, installation of 1-5/8” stud link chain bridles, and installation of 1-1/2 tons of flotation to each new clamp.

The ROV crew consisting of Warren Posten, Matt Nienow, Chris Moritz, Colins Goertzen, Dan Anderson, Scott Blair, and Eric Crumpton encountered many obstacles but persevered and finished the job to the many thanks of a happy customer.

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