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ABS Guide for the Certification of Drilling Systems Includes Risk-Based Options

“We’re offering drilling unit owners and builders a more streamlined approach to ABS classification, with the option of certifying the drilling system,”

Merih Unuvar, ABS Project Leader/Principal Surveyor.


echnical advances in the offshore industry and regulatory developments have spurred
an update of the ABS Guide for the Certification of Drilling Systems. The Guide, now in its final stages, references current standards and the recommendations of the American Petroleum Institute (API). Most importantly, the Guide provides industry with an option for a safety case or risk-based analysis approach to certification, rather than applying the more traditional prescriptive rules.

“We’re offering drilling unit owners and builders a more streamlined approach to ABS classification, with the option of certifying the drilling system,” says Merih Unuvar, ABS project leader and principal surveyor.

He adds that with continued changes in regulatory regimes, the certification of drilling units including the drilling systems is expected to further evolve.

“Our new Guide readies the industry for ongoing regulatory and technological developments,” said Unuvar. ABS’ market share for rig classification is around 76 percent of the worldwide fleet, representing 512 drilling units classed with ABS.


Twenty of the units built since 1990 not only have certification to regulatory regimes but also include the ABS Class Notation CDS, meaning they have met ABS standards.

“We’re reducing the burden on regulatory documentation for industry, eliminating duplicative steps. That is, if a unit is classified by a recognized society, industry can expect it to be in compliance with most international regulations. Industry will reap the benefit of the lessons learned with more cost-efficient rig certification,” said Unuvar.

Drilling equipment vendors and a number of drilling companies have contributed to the technical document as well, says Unuvar, by reviewing the Guide update and providing feedback.

The ABS Guide for Certification of Drilling Systems will be available for free download from the ABS website in the first quarter of 2004. Visit the ABS Rules & Guides section on our website. The Guide will be publication #57.

For more information, visit the ABS newsroom at: http://www.eagle.org/news/press/oct2203.html.

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