Experimental study on motion and mechanical characteristics of the vertical wheel in the rock-breaking process

作     者：Yan Yang Ying-Xin Yang Hai-Tao Ren Qing-Liang Qi Ze-Quan Huang Chun-Xiao Zhou 

作者机构：International Faculty of Applied TechnologyYibin UniversityYibinSichuan 644000China College of Mechanical and Electrical EngineeringSouthwest Petroleum UniversityChengduSichuan 610500China State Key Laboratory of Oil and Gas Reservoir Geology and ExploitationSouthwest Petroleum UniversityChengduSichuan 610500China Faculty of Intelligence ManufacturingYibin UniversityYibinSichuan 644000China College of EngineeringSouthwest Petroleum UniversityNanchongSichuan 637001China 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2023年第20卷第1期

页      面：495-506页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 0808[工学-电气工程] 08[工学] 0820[工学-石油与天然气工程] 082001[工学-油气井工程] 0707[理学-海洋科学] 0817[工学-化学工程与技术] 0818[工学-地质资源与地质工程] 0708[理学-地球物理学] 0807[工学-动力工程及工程热物理] 0815[工学-水利工程] 0816[工学-测绘科学与技术] 0827[工学-核科学与技术] 0703[理学-化学] 0813[工学-建筑学] 0825[工学-航空宇航科学与技术] 0704[理学-天文学] 0814[工学-土木工程] 

基　　金：This work was supported by the open fund project of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation in 2021(Grant No.PLN2021-18) City-school Science and Technology Strategic Cooperation Project of Nanchong City and Southwest Petroleum University(Grant No.SXHZ014) Postdoctoral Science Foundation of China(Grant No.2021M693909) 

主　　题：Difficult to drill formation Vertical wheel Vertical wheel PDC bit Rock-breaking mechanism Pre-damage 

摘      要：Polycrystalline diamond compact(PDC)drill bit often performs with low ROP,short service life and poor stability under complicated and difficult to drill ***,a vertical wheel PDC bit is proposed,which is a new drill bit technology applying an integrated unit combining the tooth wheel and the rotary shaft ***,the experiments on motion and mechanical characteristics of the vertical wheel under the conditions of tooth shape and number of teeth,normal deflection angle of the wheel,and different cutting depth were carried out using variable parameter experimental device,and the movement,force law,and crushing specific work of vertical wheel under different experimental conditions were *** comparative experiments of PDC cutting rock breaking under the conditions of parallel cutting of PDC unit and pre-damage of the wheel were also carried out,and the cutting load of PDC teeth under pre-damage conditions is between 38.72% and 70.95%lower than that of parallel cutting was ***,a comparative experiment of indoor drilling between vertical wheel PDC bit and conventional PDC bit was carried *** show than when drilling in gravel rock,under the same WOB,the torque response of vertical wheel PDC bit is equivalent to that of the PDC bit,while the ROP of vertical wheel PDC bit is 22.94%-53.33% higher than that of conventional PDC bit,and the threedimensional acceleration of the vertical wheel PDC bit is 19.17%-76.23% of that of the PDC *** experimental results contribute to a better understanding of vertical wheels and provide technical support for their use in PDC bits.