(cn) Globetrotter Drill Ship
Mid 2008, Huisman was awarded a contract by a subsidiary of Noble Drilling Corp for the new drill ship HuisDrill 10000 with options for an additional three. The drilling equipment is based on the drilling mast and pipe storage in carousels as currently under construction for the Frontier/Shell "Bully" <link to Bully page>. The vessel will be self-propelled with DP-3 classification. By fully integrating the designs of the equipment and vessel, its displacement is only 54,000mt with operational capabilities equal to units with a displacement of 100,000mt. It is suitable for both Marine Drilling Riser (MDR) and Pressure Riser Drilling (PRD) in unrestricted waters including ice-infested waters.
We are responsible for the design and build of the drilling equipment but also for the concept design of the vessel. Our concept design allows a highly optimized integration of drilling equipment and vessel from the start of the design process, resulting in a more compact drilling vessel and lower building and operational costs.
The selection of our compact box type drilling tower instead of a conventional derrick allows for a significantly smaller sized vessel compared to other deepwater drill ships of similar capacity. The drilling capabilities however match the new generation large drill ships with a max water depth capability of 10,000ft, 2400 kips static hook load capacity at both the fore and aft side of the mast and 43,000ft pipe storage capacity. In addition, it offers improved operational efficiency as a result of the different equipment layout.
Besides the derrick, also the vessel design is unconventional. The engine room is placed forward, underneath the accommodation, freeing the entire aft ship for drilling equipment or tubular storage. All risers and most of the drilling tubulars are stored below deck, aft of the drilling mast. The holds are covered by hatches. This leaves a large "free" deck area of 4,200m2 (45,000ft2) which can be used for non permanent equipment. The various deck load is a generous 20,000t.
The low drill floor - max 5m above main deck - is generated by the absence of a substructure below the drilling mast. This reduces sideways motions at the drill floor and considerably lowers the centre of gravity of the drilling equipment. This is made possible by lowering the BOP through a large hatch aft of the drill mast before skidding it to the well centre, forward of the mast. The top section of the mast can be removed to allow passage through the Panama and Suez Canals as well as below the Bosporus bridge.
Huisman will supply the drilling mast with active heave compensated draw works inside, all pipe racking and pipe handling gear, riser handling cranes and the riser tensioning system. We will also supply the driller's cabin and we are responsible for all system integration including 3rd party equipment. Due to the combination of simple robust designs and the incorporation of redundancy at multiple levels, the system will maximize safety for the crew and minimize equipment downtime.
The equipment will be constructed, installed and commissioned at our Dutch facility in 2011. The vessel will be built by Korean shipyard STX in a newly built location in Dalian, China.