Norway-based Inocean has developed a new Arctic drillship, dubbed ‘IN-ICE’, based on its modern INO-80 concept.
The PC-4 ice class environmentally friendly vessel is designed to operate in extended drilling season in the Arctic region.
The IN-ICE vessel will be completely enclosed and equipped to operate in extreme winter conditions and will feature improved logistics/storage facilities.
Inocean project manager Jørgen Jorde said the drillship gives the company an opportunity to keep a conventional bow for operations in rough open water wave conditions and also to implement a moderate stern for aft-way operations in managed ice.
"We envisage the stern more optimised for avoiding ice into the moon pool than for ice breaking, but also because drilling operations in Arctic areas are expected to be conducted primarily in ‘managed ice’," Jorde said. "Positioning will be done through thruster assisted turret mooring in the shallow parts of the operational area, and by DP in the deeper parts."
Inocean said a heavy ice class vessel like PC-1/2 will not be widely used in the region for a number of years due to the lack of experience in drilling operations in heavy ice conditions with a floating drilling unit, as well as limited qualified rescue and oil collection concepts in ice.
INO-80 is a compact drillship with large free deck areas, designed for year-round operations in ultra deep waters.
The drillship features a utility arrangement with safe and reliable material handling, and a suitable shape for easy and cost-efficient fabrication as well as for challenging conditions during station-keeping and transit.
The vessel can be used for exploration, appraisal and development drilling.
Image: Inocean’s new IN-ICE drillship concept incorporates a moderate stern for aft-way operations in managed ice. Credit: Inocean.