Polar Onyx (Orient Adventurer)
New name: Orient Adventurer. A flexible platform for various assignments, delivered initially as a high-capacity flexible pipelay/subsea construction vessel for harsh conditions and deep waters for operations in the SURF/Construction/IMR market.
Primary specifications as built
Additional Data
Ship history
IMO number: 9664706
2014, 4 March:
The 'Polar Onyx' was another on-time delivery from the Ulstein Verft shipyard. Irene W. Basili, CEO of GC Rieber Shipping, stated: "The vessel is designed to meet the increasing expectations from our clients in the high-end subsea segment regarding operational redundancy and flexibility. Our cooperation with Ulstein Verft has been excellent, which has again been essential to supporting our client. Ceona chartered the vessel for a fixed period of five years. After delivery, a 275t vertical lay system was installed before she entered operations in May 2014. Her first assignment was to deliver deepwater SURF services to Petrobras offshore Brazil.
The SX121 design has a high capacity for flexible-pipe cargo on and below the main deck. The X-BOW delivers excellent seakeeping and fuel efficiency. Polar Onyx was built to the highest standard for station keeping, redundancy and dynamic positioning with DP3 and Operation +, providing reliability in operation.
"Polar Onyx" is certified according to Special Purpose Ships (SPS) and Clean Design and carries a Green Passport. She has an extensive construction/cargo deck area of 1,700 m2. She has an AHC offshore crane capable of lifting 250 tonnes at a 14-metre outreach and a 12-tonne AHC offshore crane. She carries two work-class ROVs, one to be deployed through a moon pool and the other over the starboard side.
November 2015:
GC Rieber Shipping acquired the Polar Onyx from Ceona. The first assignment after the takeover was a charter agreement with Marine Platforms Limited for a fixed period of 60 days starting in January 2016, with an option for up to 2 months of additional work. The assignment was to conduct flex-laying activities for Chevron offshore Nigeria. Later, the contract was extended to May 2021.
February 2021:
GC Rieber Shipping announced another contract for the vessel from a Tier 1 subsea contractor for three months in the North Sea, starting on 1 July 2021. The assignment included options to extend this into Q4 2021.
December 2021:
GC Rieber Shipping sold the Polar Onyx to the Taiwan-based offshore wind service player Dong Fang Offshore, a subsidiary of Hung Hua Construction. Delivery took place in February 2022. The vessel would be working on a 2022 construction campaign in Taiwanese waters. Her new name is Orient Adventurer.
March 2024:
Seaway7 announced that, after less than 6 weeks of work at the ST Marine shipyard, the vessel had been converted into a cable layer (CLV) and would begin cable-laying operations at the Yunlin offshore wind farm. The conversion involved using Seaway7's cable-laying spread and DFO’s vessel to create a dedicated cable-laying asset for Taiwan.
January 2025:
DeepOcean reunited with the Orient Adventurer and signed a charter contract with Dong Fang Offshore. The Orient Adventurer would go through an extensive conversion - toggle to the aftermarket reference to read more.
