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3. Analysis and calculation of drilling tool friction in 3D horizontal wells;Hongbo Yan;Petrochemical Technology,2018
4. Research on drag reduction control technology of top drive torsional pendulum in sliding drilling;Gan Li;Petroleum Machinery,2018
5. Tan Tianyi . Prediction of friction and torque of horizontal wells in long horizontal section and research on top drive torque reduction technology , China University of Petroleum ( Beijing) , 2018 . Tan Tianyi. Prediction of friction and torque of horizontal wells in long horizontal section and research on top drive torque reduction technology, China University of Petroleum (Beijing), 2018 .