公开(公告)号：US07382135B2

公开(公告)日：2008-06-03

申请号：US10709212

申请日：2004-04-21

申请人： Qiming Li ,  Lawrence Chou ,  Dzevat Omeragic ,  Libo Yang ,  Alain Dumont ,  Lingyun Hu

发明人： Qiming Li ,  Lawrence Chou ,  Dzevat Omeragic ,  Libo Yang ,  Alain Dumont ,  Lingyun Hu

IPC分类号： G01B3/08

CPC分类号： G01V3/28 ,  G01V3/30

摘要： A novel on-the-fly data processing technique is useful for extracting signals from the azimuthal variation of the directional measurements acquired by a logging tool within a borehole. The relevant boundary, anisotropy and fracture signals are extracted from the formation response through fitting of the azimuthal variation of the measured voltages to some sinusoidal functions. The orientation of the bedding is also obtained as a result. The extracted directional signals are useful for obtaining boundary distances and making geosteering decisions. Two techniques involving inversion and cross-plotting may be employed, depending on the nature of the boundary. A Graphical User Interface (GUI) is part of a system to facilitate flexible definition of inversion objectives, for improving the inversion results, and for visualization of the formation model as well as inversion measurements.

摘要翻译： 一种新颖的实时数据处理技术可用于从钻孔内的测井工具获取的方向测量的方位角变化中提取信号。 通过将测量电压的方位角变化拟合到某些正弦函数，从形成响应中提取相关边界，各向异性和断裂信号。 因此也获得了床上用品的取向。 提取的方向信号对于获得边界距离和进行地理转向决定是有用的。 取决于边界的性质，可以采用涉及倒置和交叉绘图的两种技术。 图形用户界面（GUI）是系统的一部分，以便于灵活地定义反演目标，改善反演结果，以及形成模型的可视化以及反演测量。

公开(公告)号：US07366616B2

公开(公告)日：2008-04-29

申请号：US11332736

申请日：2006-01-13

申请人： Nicholas Bennett ,  Richard T. Coates ,  Alberto Malinverno ,  Dzevat Omeragic

发明人： Nicholas Bennett ,  Richard T. Coates ,  Alberto Malinverno ,  Dzevat Omeragic

IPC分类号： G01V3/20 ,  G01V3/38

CPC分类号： E21B49/00 ,  G01V3/38

摘要： A computer-based method is provided for modeling and visualizing a property of a subterranean earth formation while drilling a borehole therethrough. The computer-based method gathers electromagnetic signals corresponding to a current measurement station location of a measurement-while-drilling tool, and generates a multilayer model corresponding to such electromagnetic signals. A histogram characterizing uncertainty of the multilayer model is used to generate a set of color hue values which represent predictions of the formation property for depth values above/below the tool, and a corresponding set of saturation values (which represent uncertainties for these predictions). A curtain plot is generated and displayed. The curtain plot employs colors to visualize formation property predictions for depth values above/below the tool over successive measurement station locations. A new column of the curtain plot is generated for the current measurement station location. The color values of the new column are based upon the set of color hue values and the set of saturation values derived from the histogram. The saturation levels of the new column represent uncertainties for the corresponding predictions.

摘要翻译： 提供了一种基于计算机的方法，用于在钻孔通过其中的地下地层的性质的建模和可视化。 基于计算机的方法收集对应于钻孔测量工具的当前测量站位置的电磁信号，并且生成对应于这种电磁信号的多层模型。 表征多层模型的不确定性的直方图用于生成一组色调值，它们表示对于工具以上/下方的深度值的形成属性的预测，以及对应的一组饱和度值（这代表这些预测的不确定性）。 生成并显示窗帘图。 窗帘绘图使用颜色来显示在连续的测量站位置上的工具上方/下方的深度值的地层性质预测。 为当前测量站位置生成一个新的窗帘图。 新列的颜色值基于色彩值的集合和从直方图导出的饱和度集合。 新列的饱和度水平表示相应预测的不确定性。

公开(公告)号：US07239145B2

公开(公告)日：2007-07-03

申请号：US10812369

申请日：2004-03-29

申请人： Dean M. Homan ,  Dzevat Omeragic ,  Tianhua Zhang ,  Nicolas Sebline

发明人： Dean M. Homan ,  Dzevat Omeragic ,  Tianhua Zhang ,  Nicolas Sebline

IPC分类号： G01V3/18

CPC分类号： G01V3/30

摘要： Sensor assemblies including transmitter and receiver antennas to respectively transmit or receive electromagnetic energy. The sensor assemblies are disposed in downhole tools adapted for subsurface disposal. The receiver is disposed at a distance less than six inches (15 cm) from the transmitter on the sensor body. The sensor transmitter or receiver includes an antenna with its axis tilted with respect to the axis of the downhole tool. A sensor includes a tri-axial system of antennas. Another sensor includes a cross-dipole antenna system.

摘要翻译： 传感器组件包括用于分别发送或接收电磁能的发射机和接收机天线。 传感器组件设置在适于地下处置的井下工具中。 接收器设置在距离传感器主体上的发射器小于6英寸（15厘米）的距离处。 传感器发射器或接收器包括其轴线相对于井下工具的轴线倾斜的天线。 传感器包括三轴天线系统。 另一传感器包括一个交叉偶极天线系统。

公开(公告)号：US06927578B2

公开(公告)日：2005-08-09

申请号：US10248119

申请日：2002-12-19

申请人： Dean M. Homan ,  Dzevat Omeragic

发明人： Dean M. Homan ,  Dzevat Omeragic

IPC分类号： G01V3/28 ,  G01V3/18

CPC分类号： G01V3/28

摘要： The invention provides an apparatus for making an electromagnetic measurement from within a subsurface borehole. The apparatus comprises an elongated support having electrically conductive segments and adapted for disposal within the borehole; an antenna adapted to transmit electromagnetic energy disposed on the support such that its axis is tilted or perpendicular with respect to the axis of the support; a sensor disposed on the support and adapted to detect a current flow along the support when the antenna is activated to transmit electromagnetic energy; and means to process the detected current flow to provide an indication of the measurement quality or the position of the support within the borehole.

摘要翻译： 本发明提供一种用于从地下钻孔内进行电磁测量的装置。 该装置包括具有导电段并且适于在钻孔内处置的细长支撑件; 天线，其适于传输设置在所述支撑件上的电磁能量，使得其轴线相对于所述支撑件的轴线倾斜或垂直; 传感器，其设置在所述支撑件上并且适于在所述天线被激活以传送电磁能量时检测沿着所述支撑件的电流; 以及用于处理检测到的电流以提供测量质量或支撑件在钻孔内的位置的指示的装置。

公开(公告)号：US20050140373A1

公开(公告)日：2005-06-30

申请号：US10709212

申请日：2004-04-21

申请人： Qiming Li ,  Lawrence Chou ,  Dzevat Omeragic ,  Libo Yang ,  Alain Dumont ,  Lingyun Hu

发明人： Qiming Li ,  Lawrence Chou ,  Dzevat Omeragic ,  Libo Yang ,  Alain Dumont ,  Lingyun Hu

IPC分类号： G01V3/28 ,  G01V3/30 ,  G01V3/18

CPC分类号： G01V3/28 ,  G01V3/30

摘要： A novel on-the-fly data processing technique is useful for extracting signals from the azimuthal variation of the directional measurements acquired by a logging tool within a borehole. The relevant boundary, anisotropy and fracture signals are extracted from the formation response through fitting of the azimuthal variation of the measured voltages to some sinusoidal functions. The orientation of the bedding is also obtained as a result. The extracted directional signals are useful for obtaining boundary distances and making geosteering decisions. Two techniques involving inversion and cross-plotting may be employed, depending on the nature of the boundary. A Graphical User Interface (GUI) is part of a system to facilitate flexible definition of inversion objectives, for improving the inversion results, and for visualization of the formation model as well as inversion measurements.

摘要翻译： 一种新颖的实时数据处理技术可用于从钻孔内的测井工具获取的方向测量的方位角变化中提取信号。 通过将测量电压的方位角变化拟合到某些正弦函数，从形成响应中提取相关边界，各向异性和断裂信号。 因此也获得了床上用品的取向。 提取的方向信号对于获得边界距离和进行地理转向决定是有用的。 取决于边界的性质，可以采用涉及倒置和交叉绘图的两种技术。 图形用户界面（GUI）是系统的一部分，以便于灵活地定义反演目标，改善反演结果，以及形成模型的可视化以及反演测量。

公开(公告)号：US20050083063A1

公开(公告)日：2005-04-21

申请号：US10710188

申请日：2004-06-24

申请人： Dzevat Omeragic ,  Qiming Li ,  Lawrence Chou ,  Libo Yang ,  Chengbing Liu ,  Jan Smits

发明人： Dzevat Omeragic ,  Qiming Li ,  Lawrence Chou ,  Libo Yang ,  Chengbing Liu ,  Jan Smits

IPC分类号： G01V3/18 ,  G01V3/28 ,  G01V3/08

CPC分类号： G01V3/28

摘要： A method employs an apparatus for generating a directional signal associated with the electromagnetic energy response of a subsurface formation. The method is useful to derive both the strike angle of formation boundary and the relative dip. The true dip and azimuth can be computed from the relative dip information coupled with borehole orientation. Other applications of the method are also described.

摘要翻译： 一种方法采用一种用于产生与地下地层的电磁能量响应相关联的方向信号的装置。 该方法有助于导出地层边界的撞击角和相对倾角。 真实的倾角和方位角可以从与钻孔方向相关的相对倾角信息计算出来。 还描述了该方法的其他应用。

公开(公告)号：US20050067190A1

公开(公告)日：2005-03-31

申请号：US10674179

申请日：2003-09-29

申请人： Jacques Tabanou ,  Dzevat Omeragic ,  Jean Seydoux ,  Attilio Pisoni

发明人： Jacques Tabanou ,  Dzevat Omeragic ,  Jean Seydoux ,  Attilio Pisoni

IPC分类号： G01V3/24 ,  E21B47/026

CPC分类号： G01V3/24

摘要： A resistivity logging sensor for logging while drilling a well using an oil-based mud includes a sensor body; a first current injector electrode disposed on the sensor body, wherein the first current injector electrode is electrically insulated from the sensor body; at least two current return electrodes disposed on the sensor body at a selected distance from the first current injector electrode, wherein the at least two current return electrodes are disposed proximate to each other and are electrically insulated from the sensor body; and an electrical source configured to energize the first current injector electrode with a current having a voltage of no less than 50 mvolts and a frequency of no less than 1 KHz.

摘要翻译： 使用油基泥浆钻井时的测井电阻率测井传感器包括传感器体; 设置在所述传感器主体上的第一电流注入器电极，其中所述第一电流注入器电极与所述传感器主体电绝缘; 至少两个电流返回电极，其布置在距离第一电流注入器电极选定距离的传感器主体上，其中至少两个电流返回电极彼此靠近设置并且与传感器主体电绝缘; 以及电源，其被配置为用具有不小于50mV的电压和不小于1KHz的频率的电流来激励所述第一电流注入器电极。

公开(公告)号：US06566881B2

公开(公告)日：2003-05-20

申请号：US09746927

申请日：2000-12-22

申请人： Dzevat Omeragic ,  Jean Seydoux ,  Richard A. Rosthal

发明人： Dzevat Omeragic ,  Jean Seydoux ,  Richard A. Rosthal

IPC分类号： G01V330

CPC分类号： G01V3/28 ,  G01V3/30 ,  H01Q1/526 ,  H01Q7/00 ,  H01Q13/10 ,  H01Q17/001

摘要： A shielding method and apparatus for an antenna disposed on an elongated support adapted for disposal within a borehole. The shield providing predetermined attenuation of one or more electromagnetic energy field components as the field components interact with the shield. The shield composed of a flexible strip or cylindrical body and respectively comprising a transverse conductive element or a transverse slot therein. The shields being adapted to cover an antenna mounted on the support. The shields being compatible for use in conjunction with saddle, tilted coils or multi-layered tri-axial coils to produce a pure transverse magnetic dipole electromagnetic field. The shields are also used in methods for shielding an antenna disposed on a support to provide predetermined attenuation of an electromagnetic field component as the field components interact with the shield.

摘要翻译： 一种用于天线的屏蔽方法和装置，其设置在适于在钻孔内处理的细长支撑件上。 屏蔽层当场分量与屏蔽相互作用时提供一个或多个电磁能量场分量的预定衰减。 该屏蔽由柔性条或圆柱体组成，分别包括横向导电元件或横向槽。 屏蔽件适于覆盖安装在支撑件上的天线。 该屏蔽件与鞍座，倾斜线圈或多层三轴线圈结合使用以产生纯横向磁偶极电磁场。 屏蔽还用于屏蔽设置在支撑件上的天线的方法，以在场屏元件与屏蔽件相互作用时提供电磁场分量的预定衰减。

公开(公告)号：US06297639B1

公开(公告)日：2001-10-02

申请号：US09452576

申请日：1999-12-01

申请人： Brian Clark ,  Richard A. Rosthal ,  Dean M. Homan ,  Dzevat Omeragic ,  Stephen D. Bonner ,  Scott S. Chesser ,  Thomas D. Barber

发明人： Brian Clark ,  Richard A. Rosthal ,  Dean M. Homan ,  Dzevat Omeragic ,  Stephen D. Bonner ,  Scott S. Chesser ,  Thomas D. Barber

IPC分类号： G01V330

CPC分类号： G01V3/30

摘要： Methods and apparatus for making directional measurements of earth formations surrounding a borehole. New antenna coil shield designs are utilized to provide selective attenuation of at least one electromagnetic energy field component as the component interacts with the shield. The new shields are implemented in several downhole tool configurations to provide azimuthally focused formation measurements. In effect, the new shield filters interacting electromagnetic energy field components to pass those components corresponding to a magnetic dipole oriented at an angle from the tool axis. The shields thereby alter a coil's envelope of influence to electromagnetic energy. The new shields also form part of a system for making directional measurements while drilling.

摘要翻译： 用于对钻孔周围的地层进行方向测量的方法和装置。 新的天线线圈屏蔽设计被用于在组件与屏蔽件相互作用时提供至少一个电磁能量场分量的选择性衰减。 新的防护罩在几个井下工具配置中实现，以提供方位角聚焦的地层测量。 实际上，新的屏蔽滤波器与电磁能场分量相互作用以通过对应于与工具轴成一定角度取向的磁偶极子的那些部件。 屏蔽因此改变了线圈对电磁能的影响。 新的盾牌也构成了钻井时进行方向测量的系统的一部分。