公开(公告)号：US11002876B2

公开(公告)日：2021-05-11

申请号：US14114742

申请日：2011-05-03

申请人： Luis Emilio San Martin ,  Dagang Wu

发明人： Luis Emilio San Martin ,  Dagang Wu

IPC分类号： G01V3/38 ,  G01V3/28

摘要： A system and method for determining formation parameters is provided. The system includes an induction logging tool having a plurality of transmitter coils. The induction logging tool further includes a plurality of receiver coils, each of the receiver coils being spaced apart from the transmitter coils by a predetermined distance and receiving a response signal from the formation. The system includes circuitry coupled to the induction logging tool, the circuitry determining voltages induced in the plurality of receiver coils by the response signal. The circuitry separates real or in-phase portions of the determined voltages from imaginary of ninety degrees out of phase portions of the determined voltages and determines formation parameters using imaginary portions of the measured voltages.

公开(公告)号：US20150142320A1

公开(公告)日：2015-05-21

申请号：US14408774

申请日：2012-08-28

申请人： Dagang Wu ,  Luis Emilio San Martin ,  Batakrishna Mandal

发明人： Dagang Wu ,  Luis Emilio San Martin ,  Batakrishna Mandal

IPC分类号： G01V3/38 ,  G01V13/00 ,  G01V3/30

CPC分类号： G01V3/38 ,  G01V3/18 ,  G01V3/30 ,  G01V13/00

摘要： In some embodiments, an apparatus and a system, as well as a method and an article, may operate to receive electromagnetic measurement data characterizing a formation from at least one transmitter-receiver pair. Further activity includes transforming the electromagnetic measurement data into transformed measurement data by computing a wavelet transform over the electromagnetic measurement data to provide wavelet coefficients, removing the wavelet coefficients below a selected threshold to provide remaining coefficients, and synthesizing the transformed measurement data by computing a reverse wavelet transform over a combination of the remaining coefficients. Additional apparatus, systems, and methods are described.

摘要翻译： 在一些实施例中，设备和系统以及方法和物品可以操作以从至少一个发射机 - 接收机对接收表征地层的电磁测量数据。 进一步的活动包括通过计算电磁测量数据上的小波变换来将电磁测量数据变换成变换的测量数据，以提供小波系数，去除低于所选阈值的小波系数以提供剩余系数，以及通过计算反向来合成变换的测量数据 通过剩余系数的组合进行小波变换。 描述了附加装置，系统和方法。

公开(公告)号：US20140067272A1

公开(公告)日：2014-03-06

申请号：US14114742

申请日：2011-05-03

申请人： Luis Emilio San Martin ,  Dagang Wu

发明人： Luis Emilio San Martin ,  Dagang Wu

IPC分类号： G01V3/38 ,  G01V3/28

CPC分类号： G01V3/38 ,  G01V3/28

摘要： A system and method for determining formation parameters is provided. The system includes an induction logging tool having a plurality of transmitter coils. The induction logging tool further includes a plurality of receiver coils, each of the receiver coils being spaced apart from the transmitter coils by a predetermined distance and receiving a response signal from the formation. The system includes circuitry coupled to the induction logging tool, the circuitry determining voltages induced in the plurality of receiver coils by the response signal. The circuitry separates real or in-phase portions of the determined voltages from imaginary of ninety degrees out of phase portions of the determined voltages and determines formation parameters using imaginary portions of the measured voltages.

摘要翻译： 提供了一种用于确定地层参数的系统和方法。 该系统包括具有多个发射器线圈的感应测井工具。 感应测井工具还包括多个接收器线圈，每个接收器线圈与发射器线圈间隔预定距离并接收来自地层的响应信号。 该系统包括耦合到感应测井工具的电路，电路通过响应信号确定在多个接收器线圈中感应的电压。 电路将确定电压的实部或同相部分与确定电压的相位部分的90度的虚数进行分离，并使用测量电压的虚部确定形成参数。

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：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：US09255849B2

公开(公告)日：2016-02-09

申请号：US13406196

申请日：2012-02-27

申请人： Dagang Wu

发明人： Dagang Wu

IPC分类号： G01K1/20

CPC分类号： G01K1/20

摘要： In some embodiments, an apparatus and a system, as well as a method and an article, may operate to receive down hole tool environmental temperature data, axial temperature data, radial temperature data, and log data. Further activity may include applying temperature effects compensation associated with the environmental temperature data and the down hole log data using a fitting function model obtained from a trained neural network to transform the down hole log data into corrected log data. Additional apparatus, systems, and methods are described.

摘要翻译： 在一些实施例中，装置和系统以及方法和制品可以用于接收井下工具环境温度数据，轴向温度数据，径向温度数据和对数数据。 进一步的活动可以包括使用从经过训练的神经网络获得的拟合函数模型来应用与环境温度数据和井下对数数据相关联的温度效应补偿，以将井下日志数据变换为校正的日志数据。 描述了附加装置，系统和方法。

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：US20130226460A1

公开(公告)日：2013-08-29

申请号：US13406196

申请日：2012-02-27

申请人： Dagang Wu

发明人： Dagang Wu

IPC分类号： G06F19/00 ,  G01V3/10 ,  G01K13/00

CPC分类号： G01K1/20

摘要： In some embodiments, an apparatus and a system, as well as a method and an article, may operate to receive down hole tool environmental temperature data, axial temperature data, radial temperature data, and log data. Further activity may include applying temperature effects compensation associated with the environmental temperature data and the down hole log data using a fitting function model obtained from a trained neural network to transform the down hole log data into corrected log data. Additional apparatus, systems, and methods are described.

摘要翻译： 在一些实施例中，装置和系统以及方法和制品可以用于接收井下工具环境温度数据，轴向温度数据，径向温度数据和对数数据。 进一步的活动可以包括使用从经过训练的神经网络获得的拟合函数模型来应用与环境温度数据和井下对数数据相关联的温度效应补偿，以将井下日志数据变换为校正的日志数据。 描述了附加装置，系统和方法。

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：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.