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    • 7. 发明申请
    • CORING APPARATUS AND METHODS TO USE THE SAME
    • CORING装置及其使用方法
    • US20110094801A1
    • 2011-04-28
    • US12603855
    • 2009-10-22
    • Steven E. BuchananLennox E. Reid, JR.Rachel Lavaure
    • Steven E. BuchananLennox E. Reid, JR.Rachel Lavaure
    • E21B25/00
    • E21B49/06E21B4/04E21B25/16
    • Example coring apparatus and methods to use the same are disclosed. A disclosed example apparatus includes a housing that is selectively pivotable in a downhole tool, a rotatable coring bit, a gear drive rotatively coupled to the housing, a key member configured to engage an inner surface of the gear drive and an outer surface of the coring bit and configured to maintain a rotational relationship between the coring bit and the gear drive, a pinion rotatively coupled to the housing, the pinion configured to engage an outer surface of the gear drive, and a motor affixed to the housing and operatively coupled to the pinion, wherein the gear drive, the key member, the pinion and the motor are configured to pivot in unison with the housing.
    • 公开了取样装置及其使用方法。 所公开的示例性装置包括壳体,该壳体可选择性地在井下工具中枢转,可旋转取芯钻头,可旋转地联接到壳体的齿轮传动装置,构造成接合齿轮传动装置的内表面和取芯 并且被配置为保持取芯钻头和齿轮传动之间的旋转关系,小齿轮可旋转地联接到壳体,小齿轮被配置为接合齿轮传动装置的外表面,以及固定到壳体的马达, 小齿轮,其中所述齿轮传动装置,所述关键部件,所述小齿轮和所述电动机构造成与所述壳体一致地枢转。