THE TENSIONED RISER COMPLIANT TOWER

The Tensioned Riser Compliant Tower (TRCT) is a new concept in deepwater compliant towers which utilizes top-tensioned production risers instead of conventional laterally-supported drivepipes to provide individual well communication to the surface. A detailed design has been performed for 3000 foot water depth and compared with conventional designs to identify weight savings. Weight correlations have been developed for 15 and 30 well cases over a water depth range of 1350 to 3250 feet. Payload sensitivity has been examined, and detailed riser interference checks have been performed to determine minimum riser spacing.