The "Offshore Oil 286" ship can undertake hoisting and pipe-laying missions and support underwater robot and diving missions. It can also carry out underwater equipment maintenance work, state-run news agency reported.

Built with an investment of more than one billion yuan (USD 163 million), the ships belongs to the Offshore Oil Engineering Co Ltd which is an affiliate of China National Offshore Oil Corporation.

The 141 meters long and 29 metres wide vessel, which was put under operation on Sunday, is China's largest offshore oil and gas producer.

It has a maximum loading capacity of 11,228 tons and can accommodate upto 150 crew members.

It is equipped with a 400-ton crane to fulfill installing missions under the water, the report said.

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