A conceptual design drillship

Federal State Unitary Enterprise "Central Research Institute. Acad. AN Krylov "developed a conceptual design for a drill ship (BS) for the Russian Arctic shelf with increased autonomy, reliability and safety when operating in heavy ice meteorological conditions

 

Ice class vessel — ARS-6. Ice strengthening allow the vessel to carry out the work in the North Sea and the Arctic shelf sparse ice thickness from 1 to 1.5 meters. Independent navigation in ice permissible in ice thickness up to 1 meter.

The draft of the vessel meets all the requirements for stability and resistance to flooding. Moreover, the vessel is designed in such a way that is capable of performing the work: drilling in a storm — up to 7 points on the formulation of a point — in a storm up to 8 points, can operate in survival mode during a storm — up to 9 points.

Drilling vessel designed for exploration drilling, equipped with technical means of surveys of the seabed in accordance with the requirements of minimal sufficiency, technical and commercial feasibility, so the focus is on ensuring the vessel monitoring the drilling.

In the body of the vessel is provided cutout diameter of 17 meters, which is a rotating mechanism (turret). The turret is held by anchors. The vessel is rotatable around the turret. This allows the vessel to be kept in place and turn to safer course corners without stopping the process of drilling.

Minimum BS adequate facilities for the survey of the seabed is provided by using remotely operated underwater vehicle.

The rescue ship other than those set forth in the regulations on the equipment of the Russian Maritime Register and the requirements of international conventions, has fore and aft rescue slopes that allow the crew in case of an accident safely descend into the survival craft on the water and ice.

The ship provides welcome and the basing of helicopters Mi-8 and Ka-32 helicopters and foreign production.

Scientists' Krylovskogo State Scientific Center "conducted experimental and analytical study of the model in the ice drilling vessel seaworthy and pools in order to develop the basic design decisions on the definition of ice and wave loads.

  • Tests of the model in broken ice
  • Tests of the model in broken ice

To determine the resistance of the hull of the ice used an extended test program model. Ice tests were conducted to determine the interaction forces from the drilling vessel to drift ice in self-motion and with broken ice when driving behind the icebreaker.

Obtained from experimental research in the ice and seaworthy basins — the results have allowed to prove the technical solutions for the project drilling vessel, and the possibility of safe operation in harsh Arctic conditions.

The work was commissioned by the Industry and Trade of Russia within the framework of the Federal Program "Development of civil marine engineering" in 2009 — 2016 years.


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