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1. 发明授权

US07536261B2 Anti-symmetrized electromagnetic measurements 有权
标题翻译：抗对称电磁测量
公开(公告)号：US07536261B2
公开(公告)日：2009-05-19
申请号：US11279739
申请日：2006-04-13
申请人： Dzevat Omeragic , Gerald N. Minerbo , Richard A. Rosthal
发明人： Dzevat Omeragic , Gerald N. Minerbo , Richard A. Rosthal
IPC分类号： G01V3/10
CPC分类号： E21B47/026 , G01V3/28
摘要： A method to determine a parameter of a subsurface formation such as anisotropy and dip comprises making at least two cross dipole measurements and forming an anti-symmetrized combination from the at least two cross dipole measurements.
摘要翻译：确定地下地层诸如各向异性和浸渍的参数的方法包括进行至少两个交叉偶极子测量并从所述至少两个交叉偶极子测量形成抗对称结合。

2. 发明授权

US06969994B2 Directional electromagnetic measurements insensitive to dip and anisotropy 有权
标题翻译：定向电磁测量对浸渍和各向异性不敏感
公开(公告)号：US06969994B2
公开(公告)日：2005-11-29
申请号：US10113132
申请日：2002-03-29
申请人： Gerald N. Minerbo , Dzevat Omeragic , Richard A. Rosthal
发明人： Gerald N. Minerbo , Dzevat Omeragic , Richard A. Rosthal
IPC分类号： G01V3/28 , G01V3/10 , G01V3/08
CPC分类号： G01V3/28
摘要： Systems and methods are provided for directional propagation-type logging measurements not sensitive to dip and anisotropy over a wide frequency range. Estimates of the distance of the logging tool to a bed boundary are obtained using “up-down” measurements with antenna configurations having tilted magnetic dipoles. These estimates are insensitive to anistropy and dip, undesirable complications of directional measurements.
摘要翻译：提供了系统和方法，用于在宽频率范围内对倾角和各向异性不敏感的定向传播型测井测量。使用具有倾斜磁偶极子的天线配置的“上下”测量来获得测井工具到床边界的距离的估计。这些估计对方向测量的熵和倾斜不良并发症不敏感。

3. 发明授权

US06680613B2 Method and apparatus for cancellation of borehole effects due to a tilted or transverse magnetic dipole 有权
标题翻译：用于消除由于倾斜或横向磁偶极子引起的井眼效应的方法和装置
公开(公告)号：US06680613B2
公开(公告)日：2004-01-20
申请号：US10367413
申请日：2003-02-14
申请人： Richard A. Rosthal , Dean Homan , Thomas D. Barber , Stephen Bonner , Brian Clark , Dzevat Omeragic
发明人： Richard A. Rosthal , Dean Homan , Thomas D. Barber , Stephen Bonner , Brian Clark , Dzevat Omeragic
IPC分类号： G01V310
CPC分类号： G01V3/28
摘要： Methods and apparatus are disclosed for minimizing or eliminating an undesired axial electric current induced along a subsurface borehole in the process of subsurface measurements with transmitter and/or receiver antennas which are substantially time varying magnetic dipoles with their dipole moments aligned at an angle to the axis of the borehole. Some antennas are disposed within the borehole on instruments having a non-conductive support member. One instrument includes a conductive all-metal body with an antenna adapted for induction frequencies. Antenna shields adapted for controlled current flow are also provided with an all-metal instrument. Methods include providing an alternate path for the current along the instrument body. Another method includes emitting a controlled current to counter the undesired current. Another method corrects for the effect of the current using a superposition technique. An embodiment of the instrument includes an antenna disposed between a pair of electrically coupled electrodes. The antenna is disposed on the instrument such that it comprises a tilted or transverse magnetic dipole. Another embodiment of the instrument includes a non-conductive housing with a conductive segment disposed thereon. An antenna is disposed on the instrument about the conductive segment. Another embodiment includes an antenna disposed between two pairs of electrodes with means to measure a voltage at the electrodes when electromagnetic energy is transmitted within the borehole. Yet another instrument includes an antenna disposed between a first pair of electrodes and means to measure a voltage at the electrodes when electromagnetic energy is transmitted within the borehole. This embodiment also includes means to energize a second electrode pair in response to the voltage measured at the first electrode pair.
摘要翻译：公开了用于在地下测量过程中沿着地下钻孔感应的不期望的轴向电流的发射机和/或接收机天线的最小化或消除的方法和装置，所述发射机和/或接收机天线是基本上时变的磁偶极，其偶极矩与轴成一定角度的钻孔。一些天线设置在具有非导电支撑构件的仪器上的钻孔内。一种仪器包括具有适用于感应频率的天线的导电全金属体。适用于受控电流流动的天线屏蔽还配有全金属仪器。方法包括提供沿着仪器主体的电流的替代路径。另一种方法包括发射受控电流以对抗不需要的电流。另一种方法使用叠加技术来纠正当前的效果。仪器的一个实施例包括设置在一对电耦合电极之间的天线。天线设置在仪器上，使得其包括倾斜或横向磁偶极子。仪器的另一实施例包括其上设置有导电段的非导电壳体。天线设置在仪器周围导电段。另一个实施例包括设置在两对电极之间的天线，其具有当电磁能量在钻孔内传输时测量电极处的电压的装置。另一种仪器包括设置在第一对电极之间的天线和当电磁能量在钻孔内传输时测量电极处的电压的装置。该实施例还包括响应于在第一电极对测量的电压来激励第二电极对的装置。

4. 发明授权

US06573722B2 Method and apparatus for cancellation of borehole effects due to a tilted or transverse magnetic dipole 有权
公开(公告)号：US06573722B2
公开(公告)日：2003-06-03
申请号：US09737891
申请日：2000-12-15
申请人： Richard A. Rosthal , Dean Homan , Thomas D. Barber , Stephen Bonner , Brian Clark , Dzevat Omeragic
发明人： Richard A. Rosthal , Dean Homan , Thomas D. Barber , Stephen Bonner , Brian Clark , Dzevat Omeragic
IPC分类号： G01V302
CPC分类号： G01V3/28
摘要： Methods and apparatus are disclosed for minimizing or eliminating an undesired axial electric current induced along a subsurface borehole in the process of subsurface measurements with transmitter and/or receiver antennas which are substantially time varying magnetic dipoles with their dipole moments aligned at an angle to the axis of the borehole. Some antennas are disposed within the borehole on instruments having a non-conductive support member. One instrument includes a conductive all-metal body with an antenna adapted for induction frequencies. Antenna shields adapted for controlled current flow are also provided with an all-metal instrument. Methods include providing an alternate path for the current along the instrument body. Another method includes emitting a controlled current to counter the undesired current. Another method corrects for the effect of the current using a superposition technique. An embodiment of the instrument includes an antenna disposed between a pair of electrically coupled electrodes. The antenna is disposed on the instrument such that it comprises a tilted or transverse magnetic dipole. Another embodiment of the instrument includes a non-conductive housing with a conductive segment disposed thereon. An antenna is disposed on the instrument about the conductive segment. Another embodiment includes an antenna disposed between two pairs of electrodes with means to measure a voltage at the electrodes when electromagnetic energy is transmitted within the borehole. Yet another instrument includes an antenna disposed between a first pair of electrodes and means to measure a voltage at the electrodes when electromagnetic energy is transmitted within the borehole. This embodiment also includes means to energize a second electrode pair in response to the voltage measured at the first electrode pair.

5. 发明授权

US06380744B2 Shielding apparatus for selective attenuation of an electromagnetic energy field component 有权
公开(公告)号：US06380744B2
公开(公告)日：2002-04-30
申请号：US09932249
申请日：2001-08-17
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： G01V3/28
摘要： A shield apparatus for use in conjunction with a well tool to selectively attenuate one or more electromagnetic energy field components as the components interact with the shield. The shield composed of a flexible strip or conductive body and comprising at least one sloped slot or sloped conductive element therein. The shield being adapted to surround an antenna mounted on a well tool. A method for rotating the axis of the magnetic dipole of a transmitter or receiver coil. A method for winding and shielding an electric coil such that the resultant coil emits or receives selected electromagnetic energy field components.

6. 发明授权

US06351127B1 Shielding method and apparatus for selective attenuation of an electromagnetic energy field component 有权
标题翻译：用于选择性衰减电磁能场分量的屏蔽方法和装置
公开(公告)号：US06351127B1
公开(公告)日：2002-02-26
申请号：US09452660
申请日：1999-12-01
申请人： Richard A. Rosthal , Dean M. Homan , Dzevat Omeragic , Stephen D. Bonner , Brian Clark , Scott S. Chesser , Thomas D. Barber
发明人： Richard A. Rosthal , Dean M. Homan , Dzevat Omeragic , Stephen D. Bonner , Brian Clark , Scott S. Chesser , Thomas D. Barber
IPC分类号： G01V312
CPC分类号： G01V3/28
摘要： A shield apparatus for use in conjunction with a well tool to selectively attenuate one or more electromagnetic energy field components as the components interact with the shield. The shield composed of a flexible strip or conductive body and comprising at least one sloped slot or sloped conductive element therein. The shield being adapted to surround an antenna mounted on a well tool. A method for rotating the axis of the magnetic dipole of a transmitter or receiver coil. A method for winding and shielding an electric coil such that the resultant coil emits or receives selected electromagnetic energy field components.
摘要翻译：一种与阱工具结合使用的屏蔽装置，用于当该部件与屏蔽件相互作用时选择性地衰减一个或多个电磁能量场分量。该屏蔽由柔性条带或导电体构成，并且包括至少一个倾斜的槽或倾斜的导电元件。屏蔽适于包围安装在井具上的天线。一种用于旋转发射器或接收器线圈的磁偶极子的轴线的方法。一种用于缠绕和屏蔽电线圈使得所得线圈发射或接收所选择的电磁能量分量的方法。

7. 发明授权

US06630830B2 Shielding method and apparatus using flexible strip 有权
标题翻译：使用柔性条的屏蔽方法和装置
公开(公告)号：US06630830B2
公开(公告)日：2003-10-07
申请号：US10382237
申请日：2003-03-05
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。

8. 发明授权

US06566881B2 Shielding method and apparatus using transverse slots 有权
标题翻译：使用横槽的屏蔽方法和装置
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。

9. 发明授权

US06297639B1 Method and apparatus for directional well logging with a shield having sloped slots 有权
标题翻译：用于具有倾斜槽的屏蔽件进行定向测井的方法和装置
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。

10. 发明授权

US07091877B2 Apparatus and methods for determining isotropic and anisotropic formation resistivity in the presence of invasion 有权
标题翻译：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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