Rig Designs

Innovative engineering solutions – tailor made to customer request

Frigstad Engineering has provided modern semisubmersible rig designs and  engineering services to the offshore drilling and production industry since 1981. With offices in Singapore, Norway, Cyprus and Brazil, we have strong ties with major offshore shipyards and suppliers of drilling equipment and we are able to serve our clients world-wide.

Frigstad Engineering operates with a deeply embedded philosophy of designing and modifying rigs according to the operational needs of the professionals who work on them - with the expectations of oil companies and investors in mind. Particular emphasis is placed upon equipment selection and arrangement which offers superior safety and operational performance while maintaining the highest levels of environmental protection and cost-efficiency.

Frigstad D90 - NOV Version

The Frigstad D90 is our largest semi-submersible drilling unit design which has been purposely developed for ultra deepwater exploration & development.

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Frigstad D90 - MHWirth Version

The Frigstad D90 is our largest semi-submersible drilling unit design which has been purposely developed for ultra deepwater exploration & development.

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Frigstad D85 MW

The Frigstad D85 is our upper end mid water semi-submersible drilling unit design capable of operating in water depths up to 1,500 m water depth. Rig is developed for exploration & development

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Frigstad D80 MW

Frigstad D80 is a purpose-designed mid water semi-submersible drilling unit developed by Frigstad Engineering .

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Frigstad D80 DP3

Frigstad D80 DP3 is a purpose-designed semi-submersible drilling unit for water depths down to 9,000 ft, developed by Frigstad Engineering.

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Frigstad T70

Tender Unit - The T70 is a purpose designed tender rig for deep water operations with SPAR/TLP in areas such as the Gulf of Mexico. Equiped with a 400 mT crane for handling of DES, two x 50 mT cranes for logistics on the 2,800 square meeter deck, makes this a superb tender rig.

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Frigstad A70 DP3

The Frigstad A70 DP3 is our Accommodation Unit with capacity for 500 POB, upgradable to 800 POB. The hull design is Frigstad's proprietay design providing suppurb motion, huge payload and stability. The DP3 rig is equipped with 1 and 2 men cabins with private sleeping area's. The rig has a personal transfer bridge with 38,5 meter reach and automated lift off features for improved safety.

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