Hongbo Lan, Yulin Zhang, Guanqi Zhang, Zechao Wang, Bo Li
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Finite element stress analysis of nano copper-based anti-friction coating for improved threaded connections in petroleum drilling tools
Threaded connections are commonly used in connecting petroleum drilling tools (PDTs). In this study, we use nano copper (NaCU) and epoxy-resin binder to prepare a NaCU-based anti-friction coating (NaCU-AFC). Furthermore, we use finite element analysis (FEA) to validate torque and pressure
distribution on the contact tooth surface of threaded joints of PDTs. The results demonstrate that the NaCU-AFC can effectively reduce torque by 35.66%, and significantly improve anti-sticking performance, thereby extending the service life of PDTs. In summary, this study provides valuable
insights for practical applications in coating processes for PDTs.
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