强研磨性地层中PDC钻头井底热-流-固三场耦合研究

祝效华,李聪,刘伟吉,谭宾,徐文

Study on bottom hole thermal-fluid-solid coupling of PDC bit in strong abrasive formation

Xiao-hua ZHU,Cong LI,Wei-ji LIU,Bin TAN,Wen XU

图8 1号刀翼各钻齿表面的钻井液平均流速及其与钻井液之间传递的热量

Fig.8 Average velocity of drilling fluid on each drill tooth surface and transferred heat between it and drilling fluid of No.1 blade