Composite riser technology advances to field applications

10/15/2001
Norske Conoco AS and Kvaerner Oil Field Products AS have developed a high-pressure composite drilling riser for field demonstration, which they believe is the world's first.Partially sponsored by EU Thermie, the companies successfully tested the composite riser during live drilling operations, at the Statoil AS-operated Heidrun tension-leg platform in the Norwegian Sea. During the test, a 15-m joint of the new riser replaced an equivalent high pressure 22-in. titanium joint in the drillstring riser.The composite riser joints, developed for production and drilling operations in deep waters, are made of carbon fibers and epoxy resin. The weight is less than one-half that of a steel rise...
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