钻头寿命 meaning in Chinese
bit life
bit lift
crown life
drilling life
Examples
- Drill efficiency could be promoted sharply in penetration of high - medium hard sand rock rock formation . its wings are of higher wear resistance and impact efficiency . to repeat repair grind are not necessary
大幅提高中硬岩层砂岩的钻进效率,刀翼耐磨抗冲击性强,不需反复修磨,钻头寿命长。 - According to achievements in research , using face - radial sealing structures can adapt to the developing trend of increasing rotary speed of cone bit to a certain extent in lubricating system of bearing seal , which is cramp to bit service life
本文的研究表明，在伟l ]约钻头寿命的轴承密封润滑系统中，采用端面一径向组合密封结构能够在一定程度上适应牙轮钻头转速提高的发展趋 - 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年井下液力推进器在大港油田等地区不同区块20余口井上施工的实践证明，使用这种推进器不但可以提高机械钻速，而且减轻了钻头和钻杆的振动，进而延长了钻头寿命。