沙溪庙组硬质砂岩地层异形PDC齿的设计与研究

马亚超,罗逸非,荣准,陶垒,曾汇川,蒋东,张文远

Design and study of special-shaped PDC cutter for hard sandstone strata of Shaximiao Formation

Yachao MA,Yifei LUO,Zhun RONG,Lei TAO,Huichuan ZENG,Dong JIANG,Wenyuan ZHANG

图20 PDC齿切削破岩产生的岩屑对比

Fig.20 Comparison of rock debris produced by PDC cutters cutting and breaking rock