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    • 3. 发明申请
    • Remotely-Controlled Downhole Device and Method for Using Same
    • 远程控制井下装置及其使用方法
    • US20120048571A1
    • 2012-03-01
    • US13217939
    • 2011-08-25
    • Steven R. RadfordJohn G. EvansBruce StaufferJohannes Witte
    • Steven R. RadfordJohn G. EvansBruce StaufferJohannes Witte
    • E21B34/06E21B43/00E21B34/00
    • E21B47/12E21B10/322E21B23/04E21B34/06
    • In one aspect, an apparatus for use downhole is disclosed that in one configuration includes a downhole device configured to be in an active position and an inactive position and an actuation device that includes: a housing including an annular chamber configured to house a first fluid therein, a piston in the annular chamber configured to divide the annular chamber into a first section and a second section, the piston being coupled to a biasing member, a control unit configured to enable movement of the first fluid from the first section to the second section to supply a second fluid under pressure to the tool to move the tool into the active position and from the second section to the first section to stop the supply of the second fluid to the tool to cause the tool to move into the inactive position. In another aspect, the apparatus includes a telemetry unit that sends a first pattern recognition signal to the control unit to move the tool in the active position and a second pattern recognition signal to move the tool in the inactive position.
    • 在一个方面,公开了一种井下使用的装置,在一种结构中包括构造成处于活动位置和非活动位置的致动装置,该井下装置包括:壳体,其包括构造成在其中容纳第一流体的环形室 所述环形室中的活塞构造成将所述环形室分成第一部分和第二部分,所述活塞联接到偏置部件,所述控制单元被构造成使所述第一流体能够从所述第一部分移动到所述第二部分 以向工具提供压力下的第二流体以将工具移动到活动位置并且从第二部分到第一部分停止向工具供应第二流体,以使工具移动到非活动位置。 在另一方面,该装置包括遥测单元,该遥测单元向控制单元发送第一模式识别信号以将工具移动到活动位置和第二模式识别信号以将工具移动到非活动位置。
    • 9. 发明授权
    • Methods for designing and fabricating earth-boring rotary drill bits having predictable walk characteristics and drill bits configured to exhibit predicted walk characteristics
    • 用于设计和制造具有可预测的步行特征的钻孔旋转钻头和被配置为展现预测步行特征的钻头的方法
    • US07866413B2
    • 2011-01-11
    • US11404389
    • 2006-04-14
    • Bruce StaufferWilliam H. HeuserJim L. Jacobsen
    • Bruce StaufferWilliam H. HeuserJim L. Jacobsen
    • E21B7/04
    • E21B10/00
    • Walk characteristics of an earth-boring rotary drill bit may be predicted by measuring locations and orientations of cutting elements thereof and calculating the magnitude and direction of an imbalance force of the drill bit using the measurements obtained. The calculated imbalance force may be compared to the imbalance force of at least one other drill bit having a calculated imbalance force and observed walk characteristics. An earth-boring rotary drill bit may be designed by constructing a database including the magnitude and direction of a calculated imbalance force and observed walk characteristics for a number of drill bits. Desired walk characteristics are selected, the database is referenced, and the bit may be configured to exhibit an imbalance force selected to impart desired walk characteristics to the drill bit. Drill bits are configured to exhibit an imbalance force oriented in a predetermined direction relative to a blade of the drill bit. A system may be employed to monitor the imbalance force of an operating drill bit and to provide or implement desirable operational parameters to compensate for same.
    • 可以通过测量其切削元件的位置和取向并使用所获得的测量值来计算钻头的不平衡力的大小和方向来预测钻地旋转钻头的行走特性。 计算的不平衡力可以与具有计算的不平衡力和观察到的行走特性的至少一个其他钻头的不平衡力进行比较。 可以通过构造数据库来设计钻孔旋转钻头,所述数据库包括计算的不平衡力的大小和方向以及用于多个钻头的观察到的行走特性。 选择期望的行走特征,参考数据库,并且该位可以被配置为表现出选择的不平衡力以将期望的行走特征赋予钻头。 钻头被配置为表现出相对于钻头刀片沿预定方向定向的不平衡力。 可以采用系统来监测操作钻头的不平衡力并提供或实现所需的操作参数以补偿它们。