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公开(公告)号：US10371781B2
公开(公告)日：2019-08-06
申请号：US13695216
申请日：2011-04-27
申请人： Dean M. Homan , Emmanuel Legendre , Reza Taherian , Jean Seydoux , Eunmi Choi , Gerald N. Minerbo , Sergiy Kryukov , Robert C. Smith
发明人： Dean M. Homan , Emmanuel Legendre , Reza Taherian , Jean Seydoux , Eunmi Choi , Gerald N. Minerbo , Sergiy Kryukov , Robert C. Smith
摘要： A method to obtain gain-corrected measurements. A measurement tool having one or more arrays is provided, wherein the arrays include two co-located triaxial transmitters and two co-located triaxial receivers. Measurements are obtained using the transmitters and the receivers. Impedance matrices are formed from the obtained measurements and the impedance matrices are combined to provide gain-corrected measurements. The apparatus may alternatively be a while-drilling logging tool having one or more arrays, wherein each array comprises a transmitter, a receiver, and a buck, and wherein the signal received by the receiver is subtracted from the signal received by the buck or vice versa. A slotted shield may be incorporated into either embodiment of the tool. The slots may form one or more island elements. A material is disposed in the slots. The islands and shield body have complementary tapered sides that confine the islands within the shield body.
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公开(公告)号：US20130191028A1
公开(公告)日：2013-07-25
申请号：US13695216
申请日：2011-04-27
申请人： Dean M. Homan , Emmanuel Legendre , Reza Taherian , Jean Seydoux , Eunmi Choi , Gerald N. Minerbo , Sergiy Kryukov , Robert C. Smith
发明人： Dean M. Homan , Emmanuel Legendre , Reza Taherian , Jean Seydoux , Eunmi Choi , Gerald N. Minerbo , Sergiy Kryukov , Robert C. Smith
CPC分类号： G01R35/005 , G01V3/18 , G01V3/28 , G06F15/00 , G21F3/00
摘要： A method to obtain gain-corrected measurements. A measurement tool having one or more arrays is provided, wherein the arrays include two co-located triaxial transmitters and two co-located triaxial receivers. Measurements are obtained using the transmitters and the receivers. Impedance matrices are formed from the obtained measurements and the impedance matrices are combined to provide gain-corrected measurements. The apparatus may alternatively be a while-drilling logging tool having one or more arrays, wherein each array comprises a transmitter, a receiver, and a buck, and wherein the signal received by the receiver is subtracted from the signal received by the buck or vice versa. A slotted shield may be incorporated into either embodiment of the tool. The slots may form one or more island elements. A material is disposed in the slots. The islands and shield body have complementary tapered sides that confine the islands within the shield body.
摘要翻译： 获得增益校正测量的方法。 提供了具有一个或多个阵列的测量工具，其中阵列包括两个共同定位的三轴发射器和两个共同定位的三轴接收器。 使用发射机和接收机获得测量结果。 阻抗矩阵由所获得的测量形成，并且阻抗矩阵被组合以提供增益校正的测量。 该装置可替代地是具有一个或多个阵列的同时钻井测井工具，其中每个阵列包括发射器，接收器和降压器，并且其中由接收器接收的信号从由降压器或副部件接收的信号中减去 反之亦然。 开槽的护罩可以并入工具的任一实施例中。 槽可以形成一个或多个岛元件。 材料设置在槽中。 岛屿和盾体具有互补的锥形边，将岛屿限制在盾体内。
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公开(公告)号：US10247846B2
公开(公告)日：2019-04-02
申请号：US14234584
申请日：2012-06-28
申请人： Scott Dyas , Dean M. Homan , Sergiy Kryukov , Reza Taherian , Daniel Codazzi
发明人： Scott Dyas , Dean M. Homan , Sergiy Kryukov , Reza Taherian , Daniel Codazzi
摘要： Various triaxial antenna designs having are provided. Some embodiments include a split-z coil that can include two axial coils with saddle coils in the x- and y-directions located therebetween. The split z-coils can function by having a combined magnetic moment similar to that of a single axial coil located between the two parts of the split z-coil. In some examples, the antenna assemblies can include a protrusion or other non-planar structure.
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公开(公告)号：US20160202382A1
公开(公告)日：2016-07-14
申请号：US14234584
申请日：2012-06-28
申请人： Scott Dyas , Dean M. Homan , Sergiy Kryukov , Reza Taherian , Daniel Codazzi
发明人： Scott Dyas , Dean M. Homan , Sergiy Kryukov , Reza Taherian , Daniel Codazzi
IPC分类号： G01V3/28
摘要： Various triaxial antenna designs having are provided. Some embodiments include a split-z coil that can include two axial coils with saddle coils in the x- and y-directions located therebetween. The split z-coils can function by having a combined magnetic moment similar to that of a single axial coil located between the two parts of the split z-coil. In some examples, the antenna assemblies can include a protrusion or other non-planar structure.
摘要翻译： 提供了各种各样的三轴天线设计。 一些实施例包括分裂z线圈，其可以包括两个轴向线圈，其中位于它们之间的x和y方向上具有鞍形线圈。 分离的z线圈可以通过具有与分开的z-线圈的两个部分之间的单个轴向线圈的组合磁矩类似的功能。 在一些示例中，天线组件可以包括突起或其他非平面结构。
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公开(公告)号：US20100277176A1
公开(公告)日：2010-11-04
申请号：US12434888
申请日：2009-05-04
IPC分类号： G01V3/00
CPC分类号： G01R1/18 , E21B47/102 , G01V3/20 , G01V3/28
摘要： The present invention relates to a downhole logging tool having on its tool body a set of co-located antennas, one or more additional antennas spaced longitudinally apart from the set of co-located antennas, an electromagnetically transparent shield circumferentially surrounding the set of co-located antennas, and an electromagnetically transparent shield circumferentially surrounding each of the one or more additional antennas. The downhole logging tool may be a wireline or while-drilling tool, and it may be an induction or propagation tool. The shields may have slots that are locally perpendicular to the windings of underlying coil antennas.
摘要翻译： 本发明涉及一种井下测井工具，其在其工具主体上具有一组共同定位的天线，一个或多个与所述一组同位置天线纵向间隔开的附加天线，围绕所述一组共同定位天线的电磁透明屏蔽， 以及围绕所述一个或多个附加天线中的每一个的周向环绕的电磁透明屏蔽。 井下测井工具可以是有线或同时钻孔的工具，并且其可以是感应或传播工具。 屏蔽件可以具有局部垂直于下面的线圈天线的绕组的槽。
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公开(公告)号：US08368403B2
公开(公告)日：2013-02-05
申请号：US12434888
申请日：2009-05-04
IPC分类号： G01V3/00
CPC分类号： G01R1/18 , E21B47/102 , G01V3/20 , G01V3/28
摘要： The present invention relates to a downhole logging tool having on its tool body a set of co-located antennas, one or more additional antennas spaced longitudinally apart from the set of co-located antennas, an electromagnetically transparent shield circumferentially surrounding the set of co-located antennas, and an electromagnetically transparent shield circumferentially surrounding each of the one or more additional antennas. The downhole logging tool may be a wireline or while-drilling tool, and it may be an induction or propagation tool. The shields may have slots that are locally perpendicular to the windings of underlying coil antennas.
摘要翻译： 本发明涉及一种井下测井工具，其在其工具主体上具有一组共同定位的天线，一个或多个与所述一组同位置天线纵向间隔开的附加天线，围绕所述一组共同定位天线的电磁透明屏蔽， 以及围绕所述一个或多个附加天线中的每一个的周向环绕的电磁透明屏蔽。 井下测井工具可以是有线或同时钻孔的工具，并且其可以是感应或传播工具。 屏蔽件可以具有局部垂直于下面的线圈天线的绕组的槽。
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7.发明授权Apparatus and methods for determining isotropic and anisotropic formation resistivity in the presence of invasion 有权在存在入侵时确定各向同性和各向异性地层电阻率的装置和方法公开(公告)号：US07091877B2
公开(公告)日：2006-08-15
申请号：US10707813
申请日：2004-01-14
申请人： Thomas D. Barber , Stephen D. Bonner , Dean M. Homan , Gerald N. Minerbo , Richard A. Rosthal , Kuo-Chiang Chen
发明人： Thomas D. Barber , Stephen D. Bonner , Dean M. Homan , Gerald N. Minerbo , Richard A. Rosthal , Kuo-Chiang Chen
IPC分类号： G01V3/00
CPC分类号： G01V3/28
摘要： A logging tool includes a tool body; a simple transmitter comprising a single antenna disposed on the tool body; four simple receivers, each comprising a single antenna, disposed on the tool body and spaced apart from the simple transmitter to form four arrays; and an electronic module for controlling operation of the four arrays, wherein the simple transmitter is configured to generate a magnetic field having a transverse component, wherein each of the four simple receivers is sensitive to the magnetic field generated by the simple transmitter, and at least one of the four simple receivers is sensitive to the transverse component of the magnetic field generated by the simple transmitter, and wherein the four arrays are configured to provide measurements at at least three depths of investigation.
摘要翻译： 测井工具包括工具体; 简单的发射机，包括设置在所述工具主体上的单个天线; 四个简单接收器，每个包括单个天线，设置在工具主体上并与简单发射器间隔开以形成四个阵列; 以及用于控制四个阵列的操作的电子模块，其中简单发射器被配置为产生具有横向分量的磁场，其中四个简单接收机中的每一个对由简单发射机产生的磁场敏感，并且至少 四个简单接收器之一对由简单发射器产生的磁场的横向分量敏感，并且其中四个阵列被配置为在至少三个调查深度提供测量。
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公开(公告)号：US07733093B2
公开(公告)日：2010-06-08
申请号：US11964157
申请日：2007-12-26
申请人： Dean M. Homan , Joshua W. Gibson , Jonatan Jalfin , Hanming Wang , Christophe Dupuis , Gerald N. Minerbo
发明人： Dean M. Homan , Joshua W. Gibson , Jonatan Jalfin , Hanming Wang , Christophe Dupuis , Gerald N. Minerbo
IPC分类号： G01V3/18
CPC分类号： G01V3/28 , Y10T29/4902
摘要： An induction or propagation apparatus for performing measuring the tensor resistivity of a sample of matter includes a non-conductive, generally cylindrical tubular member adapted to receive the matter therein, a triaxial transmitter, at least one triaxial receiver, and an electronic module. The electronic module is adapted to energize the triaxial transmitter, control acquisition of signals by the at least one triaxial receiver, and perform anisotropic measurements and analysis. The triaxial transmitter and the at least one triaxial receiver are disposed on the generally cylindrical tubular member in axial spaced relationship.
摘要翻译： 用于测量物质样品的张量电阻率的感应或传播装置包括适于在其中接收物质的非导电的，大致圆柱形的管状构件，三轴发射器，至少一个三轴接收器和电子模块。 电子模块适于对三轴发射器通电，控制由至少一个三轴接收器获取信号，并执行各向异性测量和分析。 三轴发射器和至少一个三轴接收器以轴向间隔的关系设置在大致圆柱形的管状构件上。
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公开(公告)号：US07414391B2
公开(公告)日：2008-08-19
申请号：US10616710
申请日：2003-07-10
CPC分类号： G01V13/00
摘要： Techniques for calibrating an electromagnetic logging tool equipped with a plurality of antennas, with at least one antenna having its axis at an angle with respect to a tool axis, include disposing a test loop about the tool such that an axis of the tool and a plane on which the test loop lies form a tilt angle that is between about 0 and 90 degrees. An induced signal is measured at one of the antennas by energizing another of the antennas. Embodiments analyze the induced signal corresponding to a max or min extrema associated with a coupling effect due to the test loop. In other embodiments a corrected signal is compared with a calculated signal.
摘要翻译： 用于校准配备有多个天线的电磁测井工具的技术，其中至少一个天线具有相对于工具轴线成一定角度的轴线，包括设置围绕所述工具的测试环，使得所述工具的轴线和平面 测试环位于其上形成约0和90度之间的倾斜角。 通过对另一个天线通电来在一个天线处测量感应信号。 实施例分析由于测试环路而与耦合效应相关联的最大或最小极值对应的感应信号。 在其他实施例中，将校正信号与计算出的信号进行比较。
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公开(公告)号：US07026813B2
公开(公告)日：2006-04-11
申请号：US10605375
申请日：2003-09-25
CPC分类号： G01V3/28
摘要： A composite shell adapted to cover a source or sensor, particularly for subsurface applications. The shell provides transparency to the passage of signals to or from the source or sensor. The shell is adapted with a uniform semi-conductive surface providing a path for electric currents flowing within a subsurface borehole to short near the source or sensor.
摘要翻译： 适用于覆盖源或传感器的复合外壳，特别是用于地下应用。 外壳提供信号到源或传感器通过的透明度。 壳体适配于均匀的半导电表面，为在地下钻孔中流动的电流提供路径，以在源极或传感器附近短路。
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