Author(s)

Nelson Szilard Galgoul

Abstract

The assembly and installation of the Shell Auger and Mars TLP tendons was performed in segments, using a heavy crane vessel to build the tendon columns in the vertical position, thus avoiding having to upend them. The corresponding segments were added on to the top, one at a time, using a purpose built connector, after which the column was lowered into position for the next segment. The cost of this operation had a great impact on the price of the tendons, not only because of the connectors, but also due to the vessel costs over the period required to perform this assembly. In order to try to reduce the tendon costs for the next Shell TLP coming on schedule, Ursa, an alternative assembly and installation procedure was investigated, based on the siz

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