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    Sediment sampler
    2.
    发明授权
    Sediment sampler 失效
    沉积物采样器

    公开(公告)号：US4729437A

    公开(公告)日：1988-03-08

    申请号：US853886

    申请日：1986-04-21

    Applicant: Michael M. Zapico

    Inventor： Michael M. Zapico

    IPC: E21B25/04 ,  E21B49/02 ,  E21B25/00

    CPC classification number: E21B25/04

    Abstract: The sampler disclosed comprises a barrel assembly (21) that is hammered into the ground, from the surface. Hammer-drive-rods are disconnectable from the barrel by manipulation from the surface by means of a left-hand-screw-thread connection (31). The barrel is pulled out of the hole by means of a draw-cable (20). The barrel includes an inner sleeve (16), made of thin aluminum or plastic. This sleeve is cut open to reveal the sample. The sleeve itself is relieved of the hammer blows and other stresses, which are taken entirely by the barrel.

    Abstract translation: 所公开的取样器包括从表面敲入地面的筒组件（21）。 锤式驱动杆通过左手螺纹连接（31）从表面操纵而与筒体断开。 桶通过拉绳（20）从孔中拉出。 桶包括由薄铝或塑料制成的内套（16）。 将该套筒切开以露出样品。 套筒本身可以减轻锤击和其他压力，这些压力完全由机筒完成。

    Method and apparatus for coring rock
    3.
    发明授权
    Method and apparatus for coring rock 失效
    取芯岩石的方法和装置

    公开(公告)号：US4679636A

    公开(公告)日：1987-07-14

    申请号：US919650

    申请日：1986-10-16

    Applicant: James L. Ruhle

    Inventor： James L. Ruhle

    IPC: E21B4/04 ,  E21B7/10 ,  E21B10/02 ,  E21B25/04

    CPC classification number: E21B25/04 ,  E21B10/02 ,  E21B4/04 ,  E21B7/10

    Abstract: A low-cost retrievable light-weight high-speed thin-kerf reversible electrically-driven core-sampling method and apparatus that is independent of the weight of any drill pipe, drill collars, or any other heavy cylindrical or tubular conduit associated with the coring operation. The flow direction of electric current to the direct-current electric motor of the core-sampling assembly is automatically reversed at frequent intervals so as to cause corresponding reversals in the direction of rotation of its core bit, resulting in the cancellation of any lateral forces on the core bit produced by reactive torque created during the coring operation, since such forces are alternately applied in opposite directions, thus, eliminating any corehole deviation that, otherwise, might occur from the lateral force created by the reactive torque of a down-hole motor that is rotated in just one direction. Geologically-induced lateral forces on the core bit are also minimized because of the light weight and high speed of the reversible electrically-driven core-sampling assembly, which quickly decreases its angle with the vertical, should its trajectory deviate from the vertical.

    Abstract translation: 低成本可回收的轻质高速薄切可逆电驱动芯取样方法和装置，其独立于任何钻杆，钻铤或与取心相关联的任何其它重的圆柱形或管状导管的重量 操作。 对于芯采样组件的直流电动机的电流的流动方向以频繁的间隔自动地反转，从而在其芯钻头的旋转方向上引起相应的反转，导致任何侧向力的消除 由于这种力在相反的方向交替地施加，因此在取芯操作期间产生的反作用转矩产生的芯钻头，消除了由井下电机的反作用转矩产生的横向力产生的任何芯孔偏差 这只是在一个方向旋转。 由于可重复的电驱动铁芯采样组件的重量轻和高速度，如果其轨迹偏离垂直方向，其可以快速降低其与垂直角度的角度，从而将芯钻头上的地质诱导侧向力最小化。

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