85 - meter Platform Supply Vessel
The 85 - meter platform supply vessel is a type of ship used to provide material resupply, equipment transportation, and related support services to offshore oil platforms, drilling platforms, etc. Here is the relevant introduction:
- **Main Dimensions**: The overall length is generally around 85.5 meters, the breadth moulded is approximately 18.2 meters, the depth moulded is about 7.8 meters, and the designed draft is around 6.5 meters.
- **Displacement and Deadweight**: The full - load displacement is approximately 7105 tons, and the deadweight is not less than 4000 tons.
- **Tank Capacity Configuration**: The fuel oil tank is about 1250 cubic meters, the fresh water tank is 830 cubic meters, the ballast water tank and the drilling water tank are each about 1980 cubic meters, the mud tank is about 1000 cubic meters, the recovered oil tank is about 850 cubic meters, the dry cargo hold is about 300 cubic meters, the base oil tank is about 100 cubic meters, and the brine tank is about 105 cubic meters.
- **Power System**: Usually equipped with 4 main generator sets, each with an output power of 1600 kilowatts, and the diesel engines of Chongqing Cummins QSK50 - DM model are often used. The propulsion system consists of 2 fully - rotating electric thrusters of 1800 kilowatts and 2 bow thrusters of 800 kilowatts. There is also 1 emergency and berthing generator set of 270 kilowatts.
- **Speed**: The speed can reach about 14.2 knots, and the economic speed is generally between 9 - 12 knots.
- **Operation Capability**: The main deck has an operation space of about 800 square meters, which can carry various types of materials and working media simultaneously, meeting the diverse resupply needs of the platform. Some vessels are also equipped with a DP2 dynamic positioning system, a Fi - Fi1 - class external fire - fighting system, etc., and can perform positioning operations and fire - fighting tasks.
- **Living Conditions**: The living area on the ship can accommodate about 50 people, including crew members and special operation personnel.