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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

US06556015B1 Method and system for determining formation anisotropic resistivity with reduced borehole effects from tilted or transverse magnetic dipoles 有权
标题翻译：用倾斜或横向磁偶极子减小钻孔效应来确定地层各向异性电阻率的方法和系统
公开(公告)号：US06556015B1
公开(公告)日：2003-04-29
申请号：US09975411
申请日：2001-10-11
申请人： Dzevat Omeragic , Gerald N. Minerbo
发明人： Dzevat Omeragic , Gerald N. Minerbo
IPC分类号： G01V326
CPC分类号： G01V3/28
摘要： Systems and methods are provided for determining subsurface formation properties using an antenna system disposed within a borehole traversing the formation. A logging system includes a well tool implemented with an antenna system having transverse or tilted magnetic dipoles. One antenna implementation uses a set of three coils having non-parallel axes. Through mechanical or electromagnetic rotation of an antenna about its axis in order to maximize or minimize couplings, the systems and methods are used to estimate formation anisotropic resistivity, providing reduced borehole effects in vertical and small deviation wells. This invention may also be applied in deviated wells when the borehole is perpendicular to the strike direction, as is often the case in wireline logging.
摘要翻译：提供的系统和方法用于使用设置在穿过地层的钻孔内的天线系统来确定地下地层特性。测井系统包括用具有横向或倾斜磁偶极子的天线系统实现的井具。一个天线实现使用一组具有非平行轴的三个线圈。通过围绕其轴线的天线机械或电磁旋转以使耦合最大化或最小化，系统和方法用于估计形成各向异性电阻率，在垂直和小偏差井中提供降低的井眼效应。当钻孔垂直于冲击方向时，本发明也可以应用于偏斜井中，如在电缆测井中通常情况。

4. 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。

5. 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.

6. 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.

7. 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。

8. 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。

9. 发明授权

US06710601B2 Borehole current correction for tilted or transverse magnetic dipoles on conductive supports 有权
标题翻译：导电支撑上倾斜或横向磁偶极子的钻孔电流校正
公开(公告)号：US06710601B2
公开(公告)日：2004-03-23
申请号：US10367475
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： G01V318
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 a device 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 a device to measure a voltage at the elecrodes when electromagnetic energy is transmitted within the borehole. This embodiment also includes a device 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，当电磁能量在钻孔内传输时，该天线具有用于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在井眼内传输电磁能量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而激励第二电极对的装置。

10. 发明授权

US06624634B2 Borehole current correction methods and apparatus 有权
标题翻译：井眼电流校正方法和装置
公开(公告)号：US06624634B2
公开(公告)日：2003-09-23
申请号：US10367398
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： 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 a device 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 a device to measure a voltage at the elecrodes when electromagnetic energy is transmitted within the borehole. This embodiment also includes a device 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，当在钻孔内传输电磁能时，器件测量电极处的电压。另一种仪器包括设置在第一对电极之间的天线和当在井眼内传输电磁能量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而激励第二电极对的装置。

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