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During the winter of 2001–2002, while drilling over the Leman Delta platform in the southern North Sea, a modern harsh-environment jack-up operating in shallow water on a hard sandy bottom encountered an incrementally increasing, partly scour-induced, problem with eccentric spudcan loading and associated rack phase difference (RPD). After 3 months on location, while the unit was in the process of...
Full-scale measurements and analyses of environmental conditions and dynamic response of the GSF Magellan jack-up for calibration of seabed fixity have now been completed for five winter seasons. During this time, the unit was operating at the Elgin and Franklin platform sites in the North Sea in about 90m of water depth. The instrumentation system installed on the jack-up acquired continuous data...
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