Bollinger delivers Sara Jane to MNM BoatsVessel & ROV News // January 3, 2003
The new design is a joint effort between Bollinger, MNM and other Bollinger customers to produce a high cargo capacity offshore support vessel (OSV) that can operate on and off the US Continental Shelf. Bollinger claims that the new 220 'super shelf' series can carry as much or more as some 230ft OSVs.
Scott Theriot, executive vice president new construction of Bollinger, said: "Because of her design, she can work on and off the shelf and can access oil and gas well installations in shallow water as well as deep water locations. The 220 series is a natural follow-on to our 145ft and 166ft classes of supply boats that have capacities of much larger OSVs, proving that less can be more."
He added that many existing OSVs are old and do not meet new regulatory standards and cannot take advantage of new, more efficient hull designs, new machinery and new systems without costly modifications to the older platforms.
Theriot said, "Sara Jane's liquid mud tanks can carry over 6,000 barrels of drilling mud and her dry bulk tanks are able to carry over 6,000 cubic feet of material. It has three separate pump systems that can handle three different liquid mud products without danger of contamination. All pump systems valves can be operated through a central control system in the pilot house that also controls the boat's ABS class DP1 dynamic positioning system."
Propulsion power for Sara Jane is provided by two Caterpillar 3516D diesel engines developing 2,000hp through Reintjes reduction gears with a ratio of 6.44:1. They drive Bollinger 102in propellers and independent rudders. Electrical power is produced bytwo Caterpillar 3408 diesels generating 370 KW each.
Theriot said the vessel has a sustained speed of 11kt. He attributed the extra speed to the hull design and the reduced roll to bilge keels. Brunvoll 700hp and 400hp bow thruster and stern thrusters enhance manoeuverability.