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 TLP (tension-leg platform) in the Norwegian Sea. During the test, a 15-m joint of the new riser replaced an equivalent high pressure 22-inch 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 riser and two-thirds that of a titanium riser. After the first drilling cycle on a Heidrun well, the composite riser was thoroughly inspected and pressure tested by DNV (Det Norske Veritas), say the companies. The new riser joints will remain on the Heidrun TLP for further testing and operation.
Composite riser technology advances to field applications
Eine neue Steigrohrtechnologie zur Offshore-Erdölbohrung mit Verbundwerkstoffen
Oil and Gas Journal ; 99 , 42 ; 41-44
2001
3 Seiten, 4 Bilder, 1 Tabelle
Aufsatz (Zeitschrift)
Englisch
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