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    • 51. 发明申请
    • A DOWN HOLE DRILL ASSEMBLY AND A METHOD OF OPERATING A DOWN HOLE DRILL ASSEMBLY
    • 一种向下钻孔组件和一种操作向下钻孔组件的方法
    • WO2010129675A3
    • 2010-11-11
    • PCT/US2010/033733
    • 2010-05-05
    • ATLAS COPCO SECOROC LLCPLUNKETT, Timothy, J.WOLFER, Dale, R.CAMPBELL, Paul
    • PLUNKETT, Timothy, J.WOLFER, Dale, R.CAMPBELL, Paul
    • E21B4/14
    • A down hole drill, includes a drill bit (40), a reciprocating piston (75) operable to deliver an impact load to the drill bit, and means for changing the frequency with which the piston delivers impact loading to the drill bit, also resulting in a change in overall power of the drill. The means for changing frequency and overall power may operate during continuous operation of the drill. The means for changing the frequency and overall power may include a valve (130) for selectively changing the effective volume of a drive or return chamber, an actuator (140) for changing the timing of placing the drive (25) or return chamber (30) in communication with exhaust (95), or a system for changing the frequency in response to sensing an predetermined operating parameter of the drill, such as pressure or piston position.
    • 井下钻具包括钻头(40),可操作以将冲击载荷传递到钻头的往复式活塞(75),以及用于改变活塞传递冲击的频率的装置 装载到钻头上,也会导致钻机的总功率发生变化。 用于改变频率和整体功率的手段可以在钻机的连续操作期间运行。 用于改变频率和总功率的装置可以包括用于选择性地改变驱动或返回腔室的有效容积的阀(130),用于改变驱动器(25)或返回腔室(30)的放置时间的致动器(140) )与排气装置(95)连通,或者响应于检测到钻头的预定操作参数(例如压力或活塞位置)而改变频率的系统。
    • 55. 发明申请
    • A DOWN HOLE DRILL ASSEMBLY AND A METHOD OF OPERATING A DOWN HOLE DRILL ASSEMBLY
    • 下钻孔组件和操作下钻孔组件的方法
    • WO2010129675A2
    • 2010-11-11
    • PCT/US2010033733
    • 2010-05-05
    • ATLAS COPCO SECOROC LLCPLUNKETT TIMOTHY JWOLFER DALE RCAMPBELL PAUL
    • PLUNKETT TIMOTHY JWOLFER DALE RCAMPBELL PAUL
    • E21B4/14
    • E21B4/14
    • A down hole drill, includes a drill bit (40), a reciprocating piston (75) operable to deliver an impact load to the drill bit, and means for changing the frequency with which the piston delivers impact loading to the drill bit, also resulting in a change in overall power of the drill. The means for changing frequency and overall power may operate during continuous operation of the drill. The means for changing the frequency and overall power may include a valve (130) for selectively changing the effective volume of a drive or return chamber, an actuator ()140 for changing the timing of placing the drive (25) or return chamber (30) in communication with exhaust (95), or a system for changing the frequency in response to sensing an predetermined operating parameter of the drill, such as pressure or piston position.
    • 钻孔钻头包括钻头(40),可操作以将冲击载荷传递到钻头的往复活塞(75),以及用于改变活塞将冲击载荷传递到钻头的频率的装置,还产生 在演练的整体力量的变化。 用于改变频率和总体功率的方法可以在钻头的连续操作期间操作。 用于改变频率和整体功率的装置可以包括用于选择性地改变驱动或返回室的有效体积的阀(130),用于改变放置驱动器(25)或返回室(30)的定时的致动器()140 )或用于响应于感测钻头的预定操作参数(例如压力或活塞位置)而改变频率的系统。