ABS approved the design and certified the GMS cantilever system for its self-elevating support vessel (SESV) GMS Evolution, delivered in May 2017.
As an industry first, GMS Evolution is fitted with a small removable skidding cantilever system, installed with a well ‘work over unit’ (WOU) designed in partnership with Dwellop A.S. The novel removable cantilever system provides an efficient and versatile vessel for well services, according to GMS.
The innovative combination of a self-propelled jack-up with a removable cantilever and workover unit is not only the first to achieve ABS SEU certification, but also the first mobile offshore drilling unit of its kind in the industry. In addition to the WOU, which can be skidded over a platform or subsea well, GMS Evolution has a self-propelled speed of more than 8 knots, DP 2 positioning, accommodation for 150 personnel and multi cranes including one of 200 tonnes capacity.
“This system offers cost-effective solutions for work that has traditionally been performed by more expensive non-propelled drilling rigs,” says GMS CEO Duncan Anderson. “This has opened up a new area of the market that had previously been predominantly served by drilling rigs, at a greater cost to operators. The new cantilever system will be able to replace them.”
GMS, based in Abu Dhabi, builds and operates its own fleet and has 14 SESVs, all of which are classed by ABS.