鉆桿壽命 的英文怎麼說
中文拼音 [zhēngǎnshòumìng]
鉆桿壽命
英文
drill-rod life-
Field operation shows that, by using the hydrodynamic propulsor, not only the penetration rate is increased, the vibration of the bit and drill stem is reduced as well, thereby the service life of the bit is extended
1995 - 1998年井下液力推進器在大港油田等地區不同區塊20餘口井上施工的實踐證明,使用這種推進器不但可以提高機械鉆速,而且減輕了鉆頭和鉆桿的振動,進而延長了鉆頭壽命。A new type rod damping stabilizer for rotary drills ispresented. it can increase the service life of rotary bit by about 27 % and its own life is over ten thousand meters. as a result, good econom ic benefit can be obtained
介紹了牙輪鉆機用的一種新型減振穩桿器,提高牙輪鉆頭使用壽命27 %左右,其本身使用壽命超萬米,獲得了良好的經濟效益。Analysis of factors that influence working life of screw drill
影響螺桿鉆具工作壽命的使用因素分析
分享友人