公开(公告)号：US20140324353A1

公开(公告)日：2014-10-30

申请号：US14355289

申请日：2011-10-31

申请人： Junsheng Hou ,  Luis E. San Martin ,  Dagang Wu

发明人： Junsheng Hou ,  Luis E. San Martin ,  Dagang Wu

IPC分类号： G01V3/38

CPC分类号： G01V3/38 ,  G01V3/28

摘要： Various resistivity logging tools, systems, and methods are disclosed. At least some system embodiments include a logging tool and at least one processor. The logging tool provides transmitter-receiver coupling measurements that include at least direct coupling along the longitudinal tool axis (Czz), direct coupling along the perpendicular axis (Cxx or Cyy), and cross coupling along the longitudinal and perpendicular axes (Cxz, Cyz, Czx, or Czy). The processor combines a plurality of the coupling measurements to obtain inversion parameters. Based at least in part on the inversion parameter, the processor performs an inversion process to determine a vertical conductivity and, based in part on the vertical conductivity, determines borehole corrected values for said transmitter-receiver coupling measurements. One or more of the borehole corrected values can be provided as a function of borehole position.

摘要翻译： 公开了各种电阻率测井工具，系统和方法。 至少一些系统实施例包括测井工具和至少一个处理器。 测井工具提供发射机 - 接收机耦合测量，其包括至少沿着纵向工具轴线（Czz）的直接耦合，沿着垂直轴线（Cxx或Cyy）的直接耦合，以及沿纵轴和垂直轴的交叉耦合（Cxz，Cyz， Czx或Czy）。 处理器组合多个耦合测量以获得反演参数。 至少部分地基于反演参数，处理器执行反演处理以确定垂直电导率，并且部分地基于垂直电导率确定所述发射机 - 接收机耦合测量的钻孔校正值。 作为钻孔位置的函数，可以提供一个或多个钻孔校正值。

公开(公告)号：US10330818B2

公开(公告)日：2019-06-25

申请号：US14355289

申请日：2011-10-31

申请人： Junsheng Hou ,  Luis E. San Martin ,  Dagang Wu

发明人： Junsheng Hou ,  Luis E. San Martin ,  Dagang Wu

IPC分类号： G01V3/38 ,  G01V3/28

摘要： Various resistivity logging tools, systems, and methods are disclosed. At least some system embodiments include a logging tool and at least one processor. The logging tool provides transmitter-receiver coupling measurements that include at least direct coupling along the longitudinal tool axis (Czz), direct coupling along the perpendicular axis (Cxx or Cyy), and cross coupling along the longitudinal and perpendicular axes (Cxz, Cyz, Czx, or Czy). The processor combines a plurality of the coupling measurements to obtain inversion parameters. Based at least in part on the inversion parameter, the processor performs an inversion process to determine a vertical conductivity and, based in part on the vertical conductivity, determines borehole corrected values for said transmitter-receiver coupling measurements. One or more of the borehole corrected values can be provided as a function of borehole position.

公开(公告)号：US10302802B2

公开(公告)日：2019-05-28

申请号：US14377426

申请日：2012-02-16

申请人： Junsheng Hou ,  Luis E. San Martin

发明人： Junsheng Hou ,  Luis E. San Martin

IPC分类号： G01V3/26 ,  G01V3/38 ,  G01V3/20

摘要： Various embodiments include apparatus and methods to provide a skin-effect correction. The skin-effect correction can be based on a pre-calculated correction coefficient library. In various embodiments, a skin-effect correction procedure can be applied that only uses a single-frequency R-signal measurement. In addition, an embodiment of a skin-effect correction procedure using a single-frequency R-signal measurement can be applied whenever the quality of the data from one of the multiple frequencies normally used in a multi-frequency method is reliable. Additional apparatus, systems, and methods are disclosed.

公开(公告)号：US20150032376A1

公开(公告)日：2015-01-29

申请号：US14377426

申请日：2012-02-16

申请人： Junsheng Hou ,  Luis E. San Martin

发明人： Junsheng Hou ,  Luis E. San Martin

IPC分类号： G01V3/38 ,  G01V3/20

CPC分类号： G01V3/38 ,  G01V3/20 ,  G01V3/26

摘要： Various embodiments include apparatus and methods to provide a skin-effect correction. The skin-effect correction can be based on a pre-calculated correction coefficient library. In various embodiments, a skin-effect correction procedure can be applied that only uses a single-frequency R-signal measurement. In addition, an embodiment of a skin-effect correction procedure using a single-frequency R-signal measurement can be applied whenever the quality of the data from one of the multiple frequencies normally used in a multi-frequency method is reliable. Additional apparatus, systems, and methods are disclosed.

摘要翻译： 各种实施例包括提供皮肤效应校正的装置和方法。 皮肤效应校正可以基于预先计算的校正系数库。 在各种实施例中，可以应用仅使用单频R信号测量的皮肤效应校正程序。 此外，只要来自多频方法中通常使用的多个频率之一的数据的质量可靠，可以应用使用单频R信号测量的皮肤效应校正过程的实施例。 公开了附加装置，系统和方法。

公开(公告)号：US20160054467A1

公开(公告)日：2016-02-25

申请号：US14409931

申请日：2012-07-13

申请人： Shanjun Li ,  Dagang Wu ,  Luis E. San Martin ,  Yumei Tang

发明人： Shanjun Li ,  Dagang Wu ,  Luis E. San Martin ,  Yumei Tang

IPC分类号： G01V3/28 ,  G01V3/34 ,  G01V3/38 ,  E21B49/00

摘要： Improved algorithm for estimating anisotropic formation resistivity profile using a multi-component induction tool are disclosed. A method for estimating anisotropic formation resistivity profile of a formation comprises obtaining borehole corrected log data and determining at an azimuth angle of the formation. One or more formation bed boundaries are located and initial formation properties are calculated. One of a plurality of inversion windows is sequentially selected and a one-dimensional inversion of each of the sequentially selected one of the plurality of inversion windows is performed.

摘要翻译： 公开了一种使用多分量感应工具估算各向异性地层电阻率剖面的改进算法。 用于估计地层的各向异性地层电阻率剖面的方法包括获得井眼校正的对数数据并且确定地层的方位角。 定位一个或多个地层边界，并计算初始形成性质。 依次选择多个反转窗口中的一个，并且执行多个反转窗口中的顺序选择的一个的每一个的一维反转。

公开(公告)号：US10227861B2

公开(公告)日：2019-03-12

申请号：US14234621

申请日：2011-07-26

申请人： Dagang Wu ,  Luis E. San Martin

发明人： Dagang Wu ,  Luis E. San Martin

IPC分类号： G01V3/28 ,  E21B47/022

摘要： Tools, systems, and methods are disclosed for multi-component induction logging with iterative analytical conversion of tool measurements to formation parameters. At least some system embodiments include a logging tool and at least one processor. The logging tool provides transmitter-receiver coupling measurements that include at least diagonal coupling measurements (Hzz, Hxx, and/or Hyy) and cross-coupling measurements (Hxy, Hxz, and Hyz). The processor employs an iterative analytical conversion of the cross-coupling measurements into formation resistive anisotropy and dip information. The processor may further provide one or more logs of the resistive anisotropy and/or dip information.

公开(公告)号：US10416336B2

公开(公告)日：2019-09-17

申请号：US14409931

申请日：2012-07-13

申请人： Shanjun Li ,  Dagang Wu ,  Luis E. San Martin ,  Yumei Tang

发明人： Shanjun Li ,  Dagang Wu ,  Luis E. San Martin ,  Yumei Tang

IPC分类号： G01V3/28 ,  G01V3/18 ,  G01V3/38 ,  E21B49/00 ,  G01V3/34

摘要： Improved algorithm for estimating anisotropic formation resistivity profile using a multi-component induction tool are disclosed. A method for estimating anisotropic formation resistivity profile of a formation comprises obtaining borehole corrected log data and determining at an azimuth angle of the formation. One or more formation bed boundaries are located and initial formation properties are calculated. One of a plurality of inversion windows is sequentially selected and a one-dimensional inversion of each of the sequentially selected one of the plurality of inversion windows is performed.

公开(公告)号：US20140163887A1

公开(公告)日：2014-06-12

申请号：US14234621

申请日：2011-07-26

申请人： Dagang Wu ,  Luis E. San Martin

发明人： Dagang Wu ,  Luis E. San Martin

IPC分类号： E21B47/022

CPC分类号： E21B47/022 ,  G01V3/28

摘要： Tools, systems, and methods are disclosed for multi-component induction logging with iterative analytical conversion of tool measurements to formation parameters. At least some system embodiments include a logging tool and at least one processor. The logging tool provides transmitter-receiver coupling measurements that include at least diagonal coupling measurements (Hzz, Hxx, and/or Hyy) and cross-coupling measurements (Hxy, Hxz, and Hyz). The processor employs an iterative analytical conversion of the cross-coupling measurements into formation resistive anisotropy and dip information. The processor may further provide one or more logs of the resistive anisotropy and/or dip information.

摘要翻译： 公开了用于多分量感应测井的工具，系统和方法，其中工具测量与地层参数的迭代分析转换。 至少一些系统实施例包括测井工具和至少一个处理器。 测井工具提供发射 - 接收耦合测量，包括至少对角耦合测量（Hzz，Hxx和/或Hyy）和交叉耦合测量（Hxy，Hxz和Hyz）。 处理器采用交叉耦合测量的迭代分析转换为形成电阻各向异性和倾角信息。 处理器还可以提供电阻各向异性和/或倾斜信息的一个或多个日志。

公开(公告)号：US10553927B2

公开(公告)日：2020-02-04

申请号：US13499739

申请日：2009-10-09

申请人： Luis E. San Martin ,  Evan L. Davies ,  Michael S. Bittar

发明人： Luis E. San Martin ,  Evan L. Davies ,  Michael S. Bittar

IPC分类号： H01F27/28 ,  H01Q1/04

摘要： A downhole tool including a transmitter coil assembly and a receiver coil assembly. The coil assembly includes at least one first coil having a first support member with a first single layer of wire wound therearound. The coil assembly further includes at least one second coil. The second coil includes a second support member having a second single layer of wire wound therearound. The first support member is disposed within the second support member, and the first single layer spaced apart from the second single wire by a distance of D.

公开(公告)号：US20140306710A1

公开(公告)日：2014-10-16

申请号：US14356139

申请日：2012-07-13

申请人： Xiaochun Nie ,  Shanjun Li ,  Burkay Donderici ,  Luis E. San Martin

发明人： Xiaochun Nie ,  Shanjun Li ,  Burkay Donderici ,  Luis E. San Martin

IPC分类号： G01V3/20

CPC分类号： G01V3/24

摘要： Multi-array laterolog tool systems and methods acquire a set of array measurements sufficient to provide laterolog tool measurements of differing array sizes. Such systems and method offer multiple depths of investigation while offering greater measurement stability in borehole environments having high resistivity contrasts. In at least some system embodiments, a wireline or LWD tool body has a center electrode positioned between multiple pairs of guard electrodes and a pair of return electrodes. At least some of the guard electrodes are positioned between component electrodes of associated split monitor electrodes that enable more accurate measurement of the guard electrode potential. The tool's electronics provide a current from the center electrode to the pair of return electrodes and currents from each pair of guard electrodes to the pair of return electrodes. Each of the currents may be distinguishable by frequency or distinguishable by some other means.

摘要翻译： 多阵列后验工具系统和方法获取足够的阵列测量集，以提供不同阵列大小的后者工具测量。 这种系统和方法提供多个调查深度，同时在具有高电阻率对比度的钻孔环境中提供更大的测量稳定性。 在至少一些系统实施例中，有线或LWD工具主体具有位于多对保护电极和一对返回电极之间的中心电极。 至少一些保护电极位于相关联的分离监视器电极的组件电极之间，从而能够更准确地测量保护电极电势。 工具的电子器件提供从中心电极到一对返回电极的电流以及从每对保护电极到一对返回电极的电流。 每个电流可以通过频率区分或通过某种其他方式可区分。