participate in interactive graph is China's first in operating in the Arctic waters of semi submersible drilling platform "Viking dragon" number. Wang Jiaoni pictured the trial team of "Viking dragon" debugging. Wang photo Yantai October 17 (Wang Zhen Lei Zhao) on October 16, by China offshore companies CIMC Raffles built China's first can be operating in the Arctic waters of semi submersible drilling platform "Viking dragon" number in the completion of the trial.