Bit Based Formation Evaluation Using A Gamma Ray Sensor
    3.
    发明申请
    Bit Based Formation Evaluation Using A Gamma Ray Sensor 有权
    使用γ射线传感器的位基形成评估

    公开(公告)号:US20100089645A1

    公开(公告)日:2010-04-15

    申请号:US12250072

    申请日:2008-10-13

    IPC分类号: E21B49/00 E21B10/00 B23P11/00

    摘要: A drill bit made according to one embodiment includes at least a gamma ray sensor configured to provide signals representative of a presence and/or amount of a naturally occurring gamma ray source when the drill bit is used for cutting into a formation. A circuit may be configured to process signals from the gamma ray sensor to provide an estimate a parameter relating to the naturally occurring gamma ray source, which may used for purposes such as optimizing drilling parameters and geosteering.

    摘要翻译: 根据一个实施例制造的钻头至少包括伽马射线传感器,其被配置为当钻头用于切割成地层时提供表示天然存在的伽马射线源的存在和/或数量的信号。 电路可以被配置为处理来自伽马射线传感器的信号以提供与天然存在的伽马射线源相关的参数的估计,其可以用于例如优化钻井参数和地理转向。

    Bit based formation evaluation using a gamma ray sensor
    4.
    发明授权
    Bit based formation evaluation using a gamma ray sensor 有权
    使用伽马射线传感器进行基于位的地层评估

    公开(公告)号:US08210280B2

    公开(公告)日:2012-07-03

    申请号:US12250072

    申请日:2008-10-13

    IPC分类号: E21B47/01

    摘要: A drill bit made according to one embodiment includes at least a gamma ray sensor configured to provide signals representative of a presence and/or amount of a naturally occurring gamma ray source when the drill bit is used for cutting into a formation. A circuit may be configured to process signals from the gamma ray sensor to provide an estimate a parameter relating to the naturally occurring gamma ray source, which may used for purposes such as optimizing drilling parameters and geosteering.

    摘要翻译: 根据一个实施例制造的钻头至少包括伽马射线传感器,其被配置为当钻头用于切割成地层时提供表示天然存在的伽马射线源的存在和/或数量的信号。 电路可以被配置为处理来自伽马射线传感器的信号以提供与天然存在的伽马射线源相关的参数的估计,其可以用于例如优化钻井参数和地理转向。

    Downhole rebound hardness measurement while drilling or wireline logging
    7.
    发明授权
    Downhole rebound hardness measurement while drilling or wireline logging 有权
    井下回弹硬度测量,同时钻孔或电缆测井

    公开(公告)号:US09291539B2

    公开(公告)日:2016-03-22

    申请号:US13050660

    申请日:2011-03-17

    IPC分类号: E21B49/00 G01N3/52

    CPC分类号: G01N3/52 E21B49/006

    摘要: A method and apparatus for estimating a rock strength profile of a formation is disclosed. A tool having a testing surface is conveyed into a wellbore in the formation. The testing surface is propelled to impact the formation at a plurality of depths in the wellbore. A measurement of hardness of the formation is obtained from a rebound of the testing surface from the formation at the plurality of depths. The rock strength profile of the formation is estimated using the obtained measurements of hardness at the plurality of depths. A parameter for drilling the wellbore can be affected using the estimated rock strength profile.

    摘要翻译: 公开了一种用于估计地层的岩石强度分布的方法和装置。 具有测试表面的工具被输送到地层中的井筒中。 测试表面被推进以在井眼中的多个深度处冲击地层。 从多个深度的地层的测试表面的反弹获得地层的硬度测量值。 使用所获得的多个深度处的硬度测量来估计地层的岩石强度分布。 使用估计的岩石强度分布可以影响钻井的参数。

    Strength (UCS) of carbonates using compressional and shear acoustic velocities
    8.
    发明授权
    Strength (UCS) of carbonates using compressional and shear acoustic velocities 有权
    使用压缩和剪切声速的碳酸盐的强度(UCS)

    公开(公告)号:US08387722B2

    公开(公告)日:2013-03-05

    申请号:US12754154

    申请日:2010-04-05

    IPC分类号: E21B47/00 E21B49/00

    CPC分类号: E21B49/003 G01V1/50 G01V3/32

    摘要: Acoustic velocities measured downhole are used to predict a rock strength using results of a regression analysis that include grain size. The grain size can be obtained from drill cuttings or from NMR measurements. The determined rock strength is used in drilling operations.

    摘要翻译: 使用井下测量的声速用于使用包括晶粒尺寸的回归分析结果来预测岩石强度。 晶粒尺寸可以从钻屑获得或从NMR测量获得。 确定的岩石强度用于钻井作业。

    Strength (UCS) of Carbonates Using Compressional and Shear Acoustic Velocities
    9.
    发明申请
    Strength (UCS) of Carbonates Using Compressional and Shear Acoustic Velocities 有权
    使用压缩和剪切声速的碳酸盐的强度(UCS)

    公开(公告)号:US20100263931A1

    公开(公告)日:2010-10-21

    申请号:US12754154

    申请日:2010-04-05

    IPC分类号: E21B49/00

    CPC分类号: E21B49/003 G01V1/50 G01V3/32

    摘要: Acoustic velocities measured downhole are used to predict a rock strength using results of a regression analysis that include grain size. The grain size can be obtained from drill cuttings or from NMR measurements. The determined rock strength is used in drilling operations.

    摘要翻译: 使用井下测量的声速用于使用包括晶粒尺寸的回归分析结果来预测岩石强度。 晶粒尺寸可以从钻屑获得或从NMR测量获得。 确定的岩石强度用于钻井作业。