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Exploration Assets

ABS provided the first classification for a mobile offshore drilling units based on the ABS Rules for Building and Classing Mobile Offshore Drilling Units (MODUs)originally published in 1968.

ABS has continuously improved its MODU Rules to remain at the forefront of providing technical assistance for these units. Customers from drilling contractors, operating companies, shipyards and designers participate in the ABS Special Committee on Mobile Offshore Drilling Units (MODUs) and provide direct input to ABS Rules.

Jackups

Development into deeper and harsher environments requires the refurbishment and modification of many of the world’s self-elevating jackup units.  ABS can provide detailed guidance for modification or new designs. 

Drillships

ABS has been involved with the upgrade of existing units for service in deeper waters and has classed many of the next generation newbuild drillships that are higher specification units rated for operation in water depths of 7,500 feet or greater.  Many of these drillships are intended for ultra deepwater operation at locations approaching 12,000 feet depth. 

Semisubmersibles

Semisubmersibles have become a strong choice for some operators in their deepwater field developments.  ABS can review the key elements of semisubmersible design criteria with its proprietary ABS Eagle Offshore Structural Assessment Program (OSAP) designed specifically to evaluate the dynamic loads, hull strength and site-specific fatigue assessments.

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