COUPLINGS PROVIDE ALTERNATIVE IN TLP TENDON DESIGN

A three-piece coupling design has been developed to suit the extreme demands of tension leg platform (TLP) tendon service. Using couplings is an alternative to one-piece tendons welded together onshore. The prototype model of Hydril Co.'s XST coupling (Fig. 1), the XST-26S, has been designed under the auspices of a major oil company and is currently being tested, Hydril says.

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