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公开(公告)号：US07759943B2
公开(公告)日：2010-07-20
申请号：US11752112
申请日：2007-05-22
申请人： Dean M. Homan , Dzevat Omeragic , Tianhua Zhang , Nicolas Sebline
发明人： Dean M. Homan , Dzevat Omeragic , Tianhua Zhang , Nicolas Sebline
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。
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公开(公告)号：US20090160449A1
公开(公告)日：2009-06-25
申请号：US11961751
申请日：2007-12-20
摘要： Improved receiver antennas are disclosed for long offset tensor induction army logging tools. The disclosed antennas include a bobbin which accommodates a ferromagnetic core. The outer surface of the bobbin is wrapped around a binding so that winding is thicker or includes more turns towards a center of the bobbin and is thinner or includes less turns towards the outer ends of the bobbin. The result is that the primary winding with a curved or parabolic profile that enhances the effective magnetic permeability and magnetic moment of the antenna. A secondary winding may also be utilized for flux feedback compensation. The elimination of winding turns towards the ends of the magnetic coil result in reduced DC resistance and the reduction in parasitic capacitance of the antennas. The disclosed antennas may be used in x-y-z receiver arrays.
摘要翻译： 公开了改进的接收天线用于长偏移张力感应陆军测井工具。 所公开的天线包括容纳铁磁芯的线轴。 绕线筒的外表面缠绕在捆扎上，使得绕组较厚或包括朝向线轴的中心的更多匝，并且更薄或包括朝向线轴的外端的较少匝。 结果是，具有弯曲或抛物线轮廓的初级绕组增强了天线的有效磁导率和磁矩。 次级绕组也可用于磁通反馈补偿。 绕线圈的消除转向电磁线圈的端部导致降低的直流电阻和天线的寄生电容的减小。 所公开的天线可以用在x-y-z接收机阵列中。
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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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公开(公告)号：US10371852B2
公开(公告)日：2019-08-06
申请号：US13333354
申请日：2011-12-21
申请人： Dean M. Homan , Mark T. Frey , Sergiy Kryukov
发明人： Dean M. Homan , Mark T. Frey , Sergiy Kryukov
摘要： A logging tool having a plurality of spatially separated antennas is provided and used to make propagation-style measurements in a formation. Tensors are formed using the propagation-style measurements and one or more quantities are computed using the tensors. A formation evaluation is performed using the computed quantities. The formation evaluation determines a formation property or parameter such as horizontal resistivity, vertical resistivity, relative dip, azimuthal dip, bed boundary location, or bed thickness. The computed quantities may include compensated phase shift resistivity, compensated attenuation resistivity, symmetrized phase shift resistivity, symmetrized attenuation resistivity, anti-symmetrized phase shift resistivity, and anti-symmetrized attenuation resistivity. The measurements may be corrected for antenna gain errors and an air calibration may be performed. A zero-dimension inversion may be performed, while drilling, and the determined horizontal resistivity, vertical resistivity, relative dip, and/or azimuthal dip information may be sent to an uphole processor in real-time.
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公开(公告)号：US20110316542A1
公开(公告)日：2011-12-29
申请号：US12825765
申请日：2010-06-29
申请人： Mark T. Frey , Dean M. Homan
发明人： Mark T. Frey , Dean M. Homan
IPC分类号： G01V3/30
CPC分类号： G01V3/26
摘要： An LWD tool with a tubular having a longitudinal axis and a set of co-located antennas carried in a recess on the tubular is disclosed. The tool carries a shield having an open slot configuration and circumferentially surrounds the set of co-located antennas, a first end of the shield being mechanically and electrically connected to the tubular. The tool also includes an insulating ring carried on the tubular, at least a portion of the insulating ring being disposed between the tubular and a second end of the shield.
摘要翻译： 公开了具有管状的LWD工具，其具有承载在管状物上的凹部中的纵向轴线和一组共同定位的天线。 该工具携带具有开口槽结构的屏蔽件，并周向地围绕该组共同定位的天线，该屏蔽件的第一端机械地和电连接到管状。 该工具还包括承载在管状物上的绝缘环，该绝缘环的至少一部分设置在该管状件与该屏蔽件的第二端之间。
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公开(公告)号：US20110291855A1
公开(公告)日：2011-12-01
申请号：US13122122
申请日：2009-08-25
申请人： Dean M. Homan , Jian Yang , Jean Seydoux
发明人： Dean M. Homan , Jian Yang , Jean Seydoux
IPC分类号： G01V3/00
CPC分类号： G01V3/30
摘要： The present disclosure relates to a downhole logging tool that includes two or more tilted antennas having equal tilt angles mounted in or on the tool body. The downhole logging tool may be, for example, a wireline or while-drilling tool, and it may be an induction or propagation tool. Various symmetrized and anti-symmetrized responses may be computed and used to infer formation properties and drilling parameters.
摘要翻译： 本公开涉及一种井下测井工具，其包括安装在工具主体内或上的具有相等倾斜角的两个或多个倾斜天线。 井下测井工具可以是例如有线或同时钻孔的工具，并且其可以是感应或传播工具。 可以计算各种对称和反对称化的响应，并用于推断地层性质和钻井参数。
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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：US20080290873A1
公开(公告)日：2008-11-27
申请号：US11752112
申请日：2007-05-22
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： G01V3/12
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。
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公开(公告)号：US07183778B2
公开(公告)日：2007-02-27
申请号：US11184527
申请日：2005-07-19
申请人： Dean M. Homan , Andrew Hieu Cao , Brian Clark
发明人： Dean M. Homan , Andrew Hieu Cao , Brian Clark
IPC分类号： G01R27/08
摘要： An apparatus for measuring fluid resistivity includes a flow line adapted to be in fluid communication with formation fluids, wherein the flow line includes a first section comprising a first conductive area, a second section comprising a second conductive area, and an insulating section disposed between the first section and the second section to prevent direct electrical communication between the first section and the second section; a first toroid and a second toroid surrounding the flow line around the first section and the second section, respectively, wherein the first toroid is configured to induce an electrical current in a fluid in the flow line and the second toroid is configured to measure the electrical current induced in the fluid in the flow line; and an electronic package to control functions of the first toroid and the second toroid.
摘要翻译： 一种用于测量流体电阻率的装置包括适于与地层流体流体连通的流动管线，其中流动管线包括第一部分，该第一部分包括第一导电区域，第二部分包括第二导电区域，以及绝缘部分， 第一部分和第二部分，以防止第一部分和第二部分之间的直接电气连通; 分别围绕第一部分和第二部分围绕流动管线的第一环形线圈和第二环形线圈，其中第一环形线圈被配置为在流动线路中的流体中感应电流，并且第二环形线圈被配置为测量电气 在流线中的流体中引起的电流; 以及用于控制第一环形线圈和第二环形线圈的功能的电子封装。
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