Following the profitable manufacture of 4 strings of Helically Grooved Buoyancy for Diamond’s ‘Blackship’ vessels, mixed with a particularly optimistic market reception to efficiency validation knowledge, Diamond Offshore Drilling have prolonged the unique license for Trelleborg’s offshore operation to this patented expertise till 2029.

Helically grooved buoyancy is the results of a joint improvement between Trelleborg’s offshore operation and Diamond Offshore Drilling that integrates VIV suppression and drag discount with drill riser buoyancy, growing rig effectivity with out compromising on security or structural integrity. The design dimensions are optimized to make sure uncompromised uplift, whereas successfully eliminating riser motions and better ranges of drag in onerous offshore present environments when in comparison with conventional riser buoyancy. The multi-functional resolution integrates the expertise to suppress VIV and cut back drag into DRBM gear throughout manufacturing, primarily eliminating the requirement of ancillary suppression gear, assuaging sophisticated and time intensive riser working and retrieval procedures.


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