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.