Page 30: of Offshore Engineer Magazine (Jul/Aug 2023)

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INTERVIEW PAUL JOHNSON, VP, TECHNICAL SERVICES, TRANSOCEAN

When designing the vessel, multiple factors need to be

What signifcant upgrades to the deck and the considered: deck space, deadweight carrying capacity, sta- hull are required for a drillship to become an of- bility, maneuverability, effciency, and vessel speed. All of shore wind installation vessel? these factors were carefully considered and applied. We

We have designed the vessel to tackle the largest foun- dations. It would be capable of handling a 3,500-ton will be confgured to carry six monopiles at a time.

monopile, 12+ meters in diameter and 120+ meters in

In your April 2023 announcement, the company length. To handle such large monopiles, we need a very said that the converted vessels would have "ef- large crane. We have selected a crane with a lifting capac- ciency-enhancing operating features." Could you ity of 5,200 tons.

elaborate on some of these features and how they

Do you already know which Transocean drilling will optimize the installation process?

We plan to install the following energy-saving and emis- vessels exactly are conversion candidates?

We have identifed a class of vessels for the basic design sion-reduction features: • Energy Storage System to reduce emissions by cap- and front-end engineering. However, this is fexible.

turing and storing excess power for future use • IMO Tier 3 compliance and lower emissions, uses ul-

Can you talk about the planned deck space? Is tra-low-sulfur diesel, NOx reduction by up to 95%, CO2 it limited to the current drillship size, can it be reduction by 20%+ expanded? How many of the currently biggest • Dual-fuel ready monopiles will you be able to load onboard?

Boskalis’ Bokalift 2 installs first

This is not the frst time a Transocean

US-made offshore wind farm drilling rig has been converted to serve the substation at South Fork Wind offshore wind industry. Namely, Transocean sold its Jack Ryan drillship to Boskalis back in 2017. The vessel has since been converted to an offshore wind installation vessel, and has secured and completed important work in the offshore wind space, including the recent substation installation for an offshore wind project in New York.

Read More

Boskalis Installs First U.S.-Made Offshore

Substation for South Fork Wind Project

Boskalis 30 OFFSHORE ENGINEER OEDIGITAL.COM