The Sakhalin2, phase 1 project by Sakhalin Energy Investment Company Ltd. (SEIC) has operated 9 years with the support of Beaufort Sea icebreakers and traditional Far East Shipping Company (FESCO) escort icebreakers. This resulted in a comprehensive risk control system as well as successful oil production in the presence of ice [1, 8-11]. In 2006, three new supply icebreakers, equipped with azimuth thrusters, which were capable of managing ice with the wake of their propulsion, were introduced to the support of the oil production in this project [3-7]. They enabled safe production of a Floating Storage and Offloading (FSO) via a Single Arm Leg Mooring (SALM) Buoy and allowed exportation of oil from the FSO with a tanker. Furthermore, SEIC also acquired new terminal tugs equipped with azimuth thrusters that were available for 2007. Two such terminal tugs were also made available for the ice management support of oil production and export operation in the spring and late season of 2007. This paper summarizes the significantly enhanced ice operational capability and the positive results directly linked to the applications of these new azimuth thruster equipped vessels.

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