会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Hydraulic lift inner barrel in a drill string coring tool
    • 液压提升内筒在钻柱取芯工具中
    • US4553613A
    • 1985-11-19
    • US530492
    • 1983-09-09
    • Steven R. Radford
    • Steven R. Radford
    • E21B25/10E21B25/00E21B25/14
    • E21B25/00E21B25/14
    • An automatically operable hydraulic lift inner barrel is devised to lift the inner tube of the core barrel on a drill string. An inner mandrel is axially disposed within the outer tube of the coring tool. An outer piston which is selectively locked to the inner mandrel is telescopically and concentrically disposed about the inner mandrel. Fluid is selectively diverted from the outer tube into the inner mandrel and inside the outer piston. An inner locking piston within the inner mandrel responds to the hydraulic pressure to unlock the outer piston from the inner mandrel. The outer piston is then longitudinally displaced by the hydraulic pressure thereby lifting the inner tube which is connected to it. After the outer piston has moved a predetermined distance, the hydraulic pressure supplied to the inner mandrel and inside the outer piston reaches a second predetermined magnitude. Burst disks are then blown thereby relieving the hydraulic pressure within the outer piston inner mandrel. The inner locking piston reassumes its initial position thereby locking the inner mandrel once again to the outer piston which is now in an extended position. Therefore, an inner tube within a coring tool can be selectively lifted, moved a predetermined longitudinal distance with respect to the outer tube, and then locked into position all in an automatic operation initiation by the initial diversion of hydraulic fluid to the inner mandrel and outer piston.
    • 设计了可自动操作的液压提升内筒,以将钻芯筒的内管提升到钻柱上。 内心轴轴向设置在取芯工具的外管内。 选择性地锁定到内心轴的外活塞可围绕内心轴伸缩并同心地设置。 液体选择性地从外管转入内心轴和外活塞内。 内心轴内的内锁定活塞响应于液压压力以从内心轴解锁外活塞。 然后外部活塞通过液压纵向移位,从而提升与其连接的内管。 在外活塞已经移动预定距离之后,供应到内心轴和外活塞内的液压达到第二预定量级。 爆破盘然后被吹动,从而减轻外活塞内心轴内的液压。 内锁定活塞重新开始其初始位置,从而将内心轴再次锁定到现在处于伸出位置的外活塞上。 因此,取芯工具内的内管可以选择性地升高,相对于外管移动预定的纵向距离,然后通过液压流体初始转移到内心轴和外部的外部处于自动操作开始中的位置 活塞。