..............page:30-34+37
Intelligent Buffer Anti-collision Device for Drilling Rig
Sun Jiangfeng;Zhang Wenying;Huang Yuechuan;Tian Fengxian;Jiang Heyan;National Oil & Gas Drilling Equipment Research Center;CNPC Baoji Oilfield Machinery Co.;Ltd.;Hunan Drilling Company;SINOPEC Southwest Petroleum Engineering Company;
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Analysis on the Marine Riser Fill-up Valve
Li Aili;Xiao Rui;Wang Dingya;Zuo Qichuan;Li Feng;Wang Yaofeng;Guo Yanxiao;CNPC Baoji Oilfield Machinery Co.;Ltd.;National Oil & Gas Drilling Equipment Research Center;
..............page:109-114
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