Houston-based subsea company Oceaneering International has taken delivery of a subsea construction support vessel, Ocean Evolution.
The vessel has completed sea trials and received all necessary ABS and U.S. Coast Guard certifications and is currently in Port Fourchon, Louisiana, completing final outfitting and preparing for project work scheduled to begin in June, Oceaneering said on Monday.
The Ocean Evolution is a U.S.-flagged, Jones Act-compliant, multi-service vessel (MSV) in the market. Its capabilities are headlined by its 250 mT active heave compensated (AHC) crane, two work-class remotely operated vehicles (ROVs) with AHC launch systems, survey systems and subsea tooling all built for work in up to 4,000 m water depths.
According to the company, the vessel serves the deepwater stimulation and intervention needs with its well stimulation and well intervention design, ABS Well Stimulation and Well Intervention (WS/WI) ready notation and under deck capacity to store special products.
Mike Ellis, Vice President, Subsea Projects, said, “The Ocean Evolution is a world class vessel ready to service the construction and intervention needs of our customers in deepwater. We are excited about the upcoming integrated services that will be provided with this vessel when combined with Oceaneering’s portfolio of subsea products and services.”
Measuring 353 ft (108 m) long, 72 ft (22 m) wide and Light Ship weight 6,900 T, Ocean Evolution is an ABS class DP2 subsea multi-service vessel built in the US under Jones Act requirements for coast-wise trade of personnel and equipment. The vessel has accommodations for 110 persons, helideck and a working moonpool measuring 23 ft x 23 ft (7 m x 7 m).
The vessel’s 12,595 ft2 (1170 m2) steel-constructed deck is designed to carry heavy loads and equipment. The deck is rated to support 10 mT/m2 with a total cargo carrying capacity of 1,900 mT.
The vessel is equipped with a 250 mT AHC main crane with a 13,000 ft (4,000 m) working depth capacity. A second auxiliary crane on deck adjacent to the working moonpool is capable of 40 mT for lifting and handling of equipment on deck and to water depths of 600 ft (180 m).
Ocean Evolution features a unique layout bridge, configured with port and starboard redundant control stations. It is built with five low-emission EPA Tier 4 diesel engines with a combined generating capacity of 16 MW on a three-bus system.
Oceaneering emphasized that Ocean Evolution features enhanced station keeping capabilities, which allows it to maintain position even during extreme weather conditions. The vessel’s position is held using two tunnel thrusters and a drop down thruster in the bow along with two Azipull thrusters in the stern.
The vessel’s design and construction was done with well stimulation and light well intervention in mind as a key capability. The underdeck storage capacity of up to 109,000 gal (413 m3) of special products maximizes use of the critical deck space for pumping and intervention equipment.
The vessel is equipped with two Oceaneering work class ROV systems. One 220 hp Millennium Plus and one 250 hp NEXXUS systems are onboard each with active heave compensated launch and recovery systems installed in a custom indoor hanger for port and starboard launch.
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