公开(公告)号：US06695078B2

公开(公告)日：2004-02-24

申请号：US09859127

申请日：2001-05-16

申请人： Young-Chin Kim ,  Sung-Wan Hong ,  Hyun-Min Kim

发明人： Young-Chin Kim ,  Sung-Wan Hong ,  Hyun-Min Kim

IPC分类号： E21B2510

CPC分类号： E21B49/02

摘要： A cutting apparatus for use in a sampler is disclosed. The cutting apparatus includes an extension tube having a round unit on a bottom side of the extension tube; a cutting ring located in a bottom portion of a protecting tube; a guide tube which is internally equipped within the cutting ring; a plurality of cutters equipped to an outside of the cutting ring for closing a bottom portion of the sampling tube when the cutting ring is pulled by uplifting an up-lifting rod of the sampler, wherein a plurality of the cutters are uplifted followed by the guide tube and bended according the round unit in order to be gathered and closed; and a connection means for fixing a plurality of the cutters on the cutting ring. A sampler having the cutting apparatus can gather a sample of un-cohesive soil such as a sandy soil without spilling.

摘要翻译： 公开了一种用于采样器的切割装置。 切割装置包括在延伸管的底侧上具有圆形单元的延伸管; 位于保护管的底部的切割环; 内部配备在切割环内的导管; 多个切割器，其设置在所述切割环的外侧，用于当通过提升所述取样器的提升杆来拉动所述切割环时闭合所述采样管的底部，其中，多个所述切割器被提升，随后是所述导向件 按照圆形单位弯曲，收集和关闭; 以及用于将多个切割器固定在切割环上的连接装置。 具有切割装置的采样器可以收集诸如沙土之类的非粘性土样品而不会溢出。

公开(公告)号：US06457538B1

公开(公告)日：2002-10-01

申请号：US09789309

申请日：2001-02-20

申请人： Gerard T. Pittard ,  J. Christopher Hetmaniak ,  Curtis Leitko ,  William J. Mcdonald

发明人： Gerard T. Pittard ,  J. Christopher Hetmaniak ,  Curtis Leitko ,  William J. Mcdonald

IPC分类号： E21B2510

CPC分类号： E21B25/10 ,  E21B47/182

摘要： A system of apparatus for use in a coring tool measures the height of a core sample being recovered and transmits data relative thereto to the surface of a formation concurrently during the coring operation. A transmitter of an electromagnetic ranging system rides atop a core sample being formed in the barrel chamber and a receiver member of the electromagnetic ranging system is fixed at a top end of the barrel it known distance above the transmitter. During the coring operation the transmitter transmits a fixed frequency signal to the receiver through drilling fluid disposed therebetween. The distance between the transmitter and receiver decreases and the amplitude of the transmitted signal changes as a function of the separation distance between the transmitter and receiver as the core sample enters the inner barrel and the height of the core sample within the barrel is determined as a function of time and depth. The pressure of the drilling fluid is modulated to transmit a series of pressure pulses from the barrel to the surface encoded to produce a binary digital or pulse-width modulation signal. The electromagnetic ranging system may be incorporated into a coring tool having a core bit disposed at a lower end and a full closure ball valve and core retention assembly movable to a closed position to close the bottom end of the inner barrel and prevent the loss of core collected in the inner barrel chamber.

摘要翻译： 在取芯工具中使用的装置系统测量正在回收的芯样品的高度，并且在取芯操作过程中同时将相对于其的数据传送到地层的表面。 电磁测距系统的发射器在形成在筒室中的芯样品的顶部上方，并且电磁测距系统的接收器构件固定在其在发射器上方已知距离的筒的顶端。 在取芯操作期间，发射器通过设置在其间的钻井液将接收机传输固定频率信号。 当核心样品进入内筒时，发射器和接收器之间的距离减小，并且发射信号的幅度随着发射器和接收器之间的间隔距离的变化而变化，并且将筒体内的芯样品的高度确定为 时间和深度的功能。 调节钻井液的压力以将一系列压力脉冲从筒体传送到编码的表面，以产生二进制数字或脉冲宽度调制信号。 电磁测距系统可以结合到具有设置在下端的芯钻头的取芯工具和全闭合球阀和芯保持组件可移动到关闭位置以封闭内筒的底端并防止芯损失 收集在内桶腔中。