钻井机械旋转循环防卡装置的研制与应用

张耀先^①, 李开荣^②, 张创科^①, 万军^①, 张强^①, 刘玉白^①

Development and application of rotating circulation anti-sticking device for drilling machine

ZHANG Yaoxian^①, LI Kairong^②, ZHANG Chuangke^①, WAN Jun^①, ZHANG Qiang^①, LIU Yubai^①