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    APPARATUSES AND METHODS FOR AT-BIT RESISTIVITY MEASUREMENTS FOR AN EARTH-BORING DRILLING TOOL
    1.
    发明申请
    APPARATUSES AND METHODS FOR AT-BIT RESISTIVITY MEASUREMENTS FOR AN EARTH-BORING DRILLING TOOL 有权
    用于地球钻孔工具的位点电阻测量的装置和方法

    公开(公告)号：US20130270008A1

    公开(公告)日：2013-10-17

    申请号：US13839821

    申请日：2013-03-15

    申请人： BAKER HUGHES INCORPORATED

    发明人： Anthony A. DiGiovanni ,  Danny E. Scott ,  Daniel T. Georgi ,  David A. Curry ,  Rashid W. Khokhar ,  Rocco DiFoggio

    IPC分类号： E21B47/00

    CPC分类号： E21B49/003 ,  B22F7/06 ,  B22F2005/001 ,  B22F2005/005 ,  C22C26/00 ,  E21B10/42 ,  E21B10/567 ,  E21B47/00 ,  E21B47/01 ,  G01V3/20

    摘要： A cutting element for an earth-boring drilling tool comprises a cutting body having a cutting surface thereon, and a sensor coupled with the cutting surface, the sensor configured to determine resistivity of a contacting formation. An earth-boring drilling tool comprises a bit body and an instrumented cutting element coupled with the bit body. The cutting element includes a cutting body having a cutting surface thereon, and at least one sensor located proximate the cutting surface. The at least one sensor is oriented and configured to determine resistivity of a contacting formation. A method of determining resistivity of a subterranean formation during a drilling operation comprises energizing a sensor of an instrumented cutting element of a drill bit, sensing a return signal flowing on or through the subterranean formation through the instrumented cutting element, and determining a resistivity of the subterranean formation based, at least in part, on the return signal.

    摘要翻译： 用于钻孔钻具的切割元件包括其上具有切割表面的切割主体和与切割表面耦合的传感器，传感器被配置为确定接触形式的电阻率。 一种钻孔钻具包括钻头体和与钻头体结合的仪表切割元件。 切割元件包括在其上具有切割表面的切割主体和位于切割表面附近的至少一个传感器。 所述至少一个传感器被定向和构造成确定接触地层的电阻率。 在钻井操作期间确定地下地层的电阻率的方法包括激励钻头的仪表切割元件的传感器，感测通过仪表化的切割元件在地下地层上流动或通过地下地层的返回信号，以及确定 至少部分地基于返回信号的地下地层。

    Apparatuses and methods for at-bit resistivity measurements for an earth-boring drilling tool
    2.
    发明授权
    Apparatuses and methods for at-bit resistivity measurements for an earth-boring drilling tool 有权
    用于钻孔钻具的位电阻率测量的装置和方法

    公开(公告)号：US09394782B2

    公开(公告)日：2016-07-19

    申请号：US13839821

    申请日：2013-03-15

    申请人： Baker Hughes Incorporated

    发明人： Anthony A. DiGiovanni ,  Danny E. Scott ,  Daniel T. Georgi ,  David A. Curry ,  Rashid W. Khokhar ,  Rocco DiFoggio

    IPC分类号： E21B47/01 ,  E21B47/00 ,  E21B10/567 ,  B22F7/06 ,  C22C26/00 ,  B22F5/00

    CPC分类号： E21B49/003 ,  B22F7/06 ,  B22F2005/001 ,  B22F2005/005 ,  C22C26/00 ,  E21B10/42 ,  E21B10/567 ,  E21B47/00 ,  E21B47/01 ,  G01V3/20

    摘要： A cutting element for an earth-boring drilling tool comprises a cutting body having a cutting surface thereon, and a sensor coupled with the cutting surface, the sensor configured to determine resistivity of a contacting formation. An earth-boring drilling tool comprises a bit body and an instrumented cutting element coupled with the bit body. The cutting element includes a cutting body having a cutting surface thereon, and at least one sensor located proximate the cutting surface. The at least one sensor is oriented and configured to determine resistivity of a contacting formation. A method of determining resistivity of a subterranean formation during a drilling operation comprises energizing a sensor of an instrumented cutting element of a drill bit, sensing a return signal flowing on or through the subterranean formation through the instrumented cutting element, and determining a resistivity of the subterranean formation based, at least in part, on the return signal.

    摘要翻译： 用于钻孔钻具的切割元件包括其上具有切割表面的切割主体和与切割表面耦合的传感器，传感器被配置为确定接触形式的电阻率。 一种钻孔钻具包括钻头体和与钻头体结合的仪表切割元件。 切割元件包括在其上具有切割表面的切割主体和位于切割表面附近的至少一个传感器。 所述至少一个传感器被定向和构造成确定接触地层的电阻率。 在钻井操作期间确定地下地层的电阻率的方法包括激励钻头的仪表切割元件的传感器，感测通过仪表化的切割元件在地下地层上流动或通过地下地层的返回信号，以及确定 至少部分地基于返回信号的地下地层。

    Estimating parameters of Archie's law and formation texture information
    3.
    发明授权
    Estimating parameters of Archie's law and formation texture information 有权

    公开(公告)号：US11520076B2

    公开(公告)日：2022-12-06

    申请号：US15081434

    申请日：2016-03-25

    申请人： BAKER HUGHES INCORPORATED

    发明人： Babak Kouchmeshky ,  Rashid W. Khokhar

    IPC分类号： G01V99/00 ,  E21B49/00 ,  G01V3/08 ,  G01V3/28

    摘要： Methods and apparatus for evaluating an earth formation for generating a numerical model comprising an expression equating a representation for the effective conductivity under Archie's law with respect to direct current with a function for the effective conductivity representative of the mixing model with respect to direct current; and solving a system of equations to obtain values for the Archie parameters including at least i) the expression; ii) a second expression equating a first order variation of the representation with a first order variation of the function with respect to water saturation of the formation (Sw); and iii) a third expression equating a first order variation of the representation with a first order variation of the function with respect to porosity of the formation (φ). The second and third expressions may equate derivatives of the representation with derivatives of the function.