一种下座键式近钻头测量系统的研发与应用
陈友学
①
, 赵新全
①
, 张翰钊
②
, 凡刚
③
Research and application of a near-bit measurement system with lower seat key
CHEN Youxue
①
, ZHAO Xinquan
①
, ZHANG Hanzhao
②
, FAN Gang
③