... Station keeping of drillships in ice has emerged as a key enabling factor for offshore developments in intermediate and deep Arctic waters. A drillship would have to keep position within strict offset limits for safe operations. This requires reliable information concerning levels of ice...

... Numerical simulations are carried out to examine the interaction of a managed ice cover with a drillship. Station keeping is maintained using a mooring system and Thruster-Assisted Mooring. The ice model is based on solving the momentum and constitutive equations, which determine the stresses...

... This paper reports on an exercise to predict ice loads on Arctic drill ships using analytical, model ice basin test-based empirical, and numerical methods. An example drillship has been employed, and pack ice has been considered in theoretical and numerical analyses. Two analytical models...

... A new type of drillship and floating production platform concept has been has been a developed by the author. This is based on lessons learned from azimuth thruster icebreakers and lessons of station keeping with dynamically positioned and moored vessels in real life operations. The new concept...

..., with the result that the upper 15 million years of sediments are saline. drilling operation upstream oil & gas thickness drillship floe arctic coring project information buoy ice forecast radarsat image ice drift vidar viking satellite drill site september 2004 th august drillsite...