New High Capacity Subsea Support Vessel Joins CNOOC’s Fleet

Hai Yang Shi You 286
Hai Yang Shi You 286, image via CSSC

China State Shipbuilding Corporation’s (CSSC) Huangpu Wenchong shipyard delivered a highly advanced deepwater subsea support vessel just before the new year to CNOOC called the Hai Yang Shi You 286.

The ship is the highest capacity vessel in China’s fleet which permits subsea operations in ultra-deepwater water up to 3,000 meters deep.  The vessel features a 400-ton active heave compensated (AHC) Huisman offshore mast crane and a 50-ton AHC Macgregor knuckle boom crane, two ROV hangars, a 2500 ton pipelay reel and support for saturation diving operations.

The vessel is DP-3 equipped and has six engines powering two azimuthing thrusters, four tunnel thrusters and a retractable thruster.

  • Length over all: 141.05 meters
  • Beam: 29 meters
  • Depth: 12.8 m
  • Draft: 8.5 meters