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41. 发明授权

US07093672B2 Systems for deep resistivity while drilling for proactive geosteering 有权
标题翻译：深层电阻率系统，用于主动地质导向钻井
公开(公告)号：US07093672B2
公开(公告)日：2006-08-22
申请号：US10707985
申请日：2004-01-29
申请人： Jean Seydoux , Dzevat Omeragic , Jacques R. Tabanou
发明人： Jean Seydoux , Dzevat Omeragic , Jacques R. Tabanou
IPC分类号： E21B25/00 , G01J3/18
CPC分类号： G01V3/28 , E21B7/04 , E21B47/00
摘要： A method for geosteering while drilling a formation includes generating a plurality of formation models for the formation, where each of the plurality of the formation models includes a set of parameters and a resistivity tool therein and locations of the resistivity tool differ in the plurality of the formation models. The method may also include computing predicted tool responses for the resistivity tool in the plurality of formation models, acquiring resistivity measurements using the resistivity tool in the formation, and determining an optimum formation model based on a comparison between the actual tool response and the predicted tool responses. The method may also include steering a bottom home assembly based on the optimum formation model.
摘要翻译：在钻孔地层时，用于地质导向的方法包括产生用于地层的多个地层模型，其中多个地层模型中的每一个包括一组参数和其中的电阻率工具，并且电阻率工具的位置在多个形成模型。该方法还可以包括计算多个地层模型中的电阻率工具的预测工具响应，使用地层中的电阻率工具获取电阻率测量值，以及基于实际的工具响应与预测的工具之间的比较来确定最佳地层模型回应。该方法还可以包括基于最佳形成模型来转向底部主组件。

42. 发明申请

US20060074561A1 METHODS FOR VISUALIZING DISTANCES BETWEEN WELLBORE AND FORMATION BOUNDARIES 有权
标题翻译：用于在井眼和形成边界之间可视化距离的方法
公开(公告)号：US20060074561A1
公开(公告)日：2006-04-06
申请号：US11161809
申请日：2005-08-17
申请人： PEIWEN XIA , JAN SMITS , LAWRENCE CHOU , QIMING LI , DZEVAT OMERAGIC , JAMES BRISTOW , PAUL WAND , JEAN MICHEL DENICHOU
发明人： PEIWEN XIA , JAN SMITS , LAWRENCE CHOU , QIMING LI , DZEVAT OMERAGIC , JAMES BRISTOW , PAUL WAND , JEAN MICHEL DENICHOU
IPC分类号： G06F19/00
CPC分类号： G01V1/34 , G01V1/40
摘要： A method for displaying a formation model includes displaying a trajectory representing a three-dimensional structure of the wellbore; and displaying objects representing a bed boundary along the trajectory, wherein the objects are displayed at distances from the trajectory according to measurement data, wherein the objects are displayed in orientations reflecting azimuth angles of planes corresponding to the bed boundary.
摘要翻译：用于显示地层模型的方法包括显示表示井眼的三维结构的轨迹; 以及沿着轨迹显示表示床边界的物体，其中根据测量数据在距离轨迹的距离处显示物体，其中，以反映与床边界对应的平面的方位角的方向显示物体。

43. 发明申请

US20060066313A1 METHOD AND APPARATUS FOR MEASURING MUD RESISTIVITY 有权
标题翻译：测量电阻率的方法和装置
公开(公告)号：US20060066313A1
公开(公告)日：2006-03-30
申请号：US10711657
申请日：2004-09-29
申请人： DEAN HOMAN , DZEVAT OMERAGIC , NICOLAS SEBLINE , HANMING WANG
发明人： DEAN HOMAN , DZEVAT OMERAGIC , NICOLAS SEBLINE , HANMING WANG
IPC分类号： G01V3/10
CPC分类号： G01V3/28
摘要： A sensor for measuring mud resistivity in a borehole includes a transmitter having a magnetic moment in a first direction; and a receiver having a magnetic moment in a second direction, wherein the first direction and the second direction are substantially different, wherein the transmitter and the receiver are disposed in an insulating collar of a downhole tool, and wherein the transmitter is disposed at a selected distance no more than 10 inches from the receiver along a longitudinal axis of the downhole tool.
摘要翻译：用于测量钻孔中的泥浆电阻率的传感器包括：具有在第一方向上的磁矩的发射器; 以及具有在第二方向上的磁矩的接收器，其中所述第一方向和所述第二方向基本上不同，其中所述发射器和接收器设置在井下工具的绝缘环中，并且其中所述发射器设置在选定的沿着井下工具的纵向轴距离接收器不超过10英寸的距离。

44. 发明授权

US06924646B2 System and method for locating a fracture in an earth formation 有权
$System and method for locating a fracture in an earth formation$
标题翻译：用于定位地层断裂的系统和方法
公开(公告)号：US06924646B2
公开(公告)日：2005-08-02
申请号：US10335608
申请日：2002-12-31
申请人： Dzevat Omeragic
发明人： Dzevat Omeragic
IPC分类号： G01V3/28 , G01V3/18 , G01V3/30
CPC分类号： G01V3/28
摘要： The invention relates to techniques for locating and determining the orientation of a fracture in an earth formation. Systems and methods for detecting a fracture in an earth formation using a propagation tool include producing electromagnetic fields using a TMD transmitter in the tool; measuring corresponding voltage signals detected with one or more TMD receivers in the tool; determining harmonics from the measured signal responses by shifting the responses (e.g. by 90 degrees) and performing an addition or subtraction using the shifted response. In some embodiments, the second harmonic is processed to determine the fracture orientation.
摘要翻译：本发明涉及用于定位和确定地层中断裂取向的技术。使用传播工具检测地层断裂的系统和方法包括使用工具中的TMD发射器产生电磁场; 测量在工具中用一个或多个TMD接收器检测到的对应电压信号; 通过将响应（例如，90度）移位并使用偏移的响应来执行加法或减法来从所测量的信号响应确定谐波。在一些实施例中，处理二次谐波以确定断裂取向。

45. 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。

46. 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。

47. 发明授权

US06557794B2 Coil shielding method for selective attenuation of an electromagnetic energy field component 有权
公开(公告)号：US06557794B2
公开(公告)日：2003-05-06
申请号：US09932251
申请日：2001-08-17
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： B65H3916
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.

48. 发明申请

US20120119744A1 SYSTEM AND METHOD FOR IMAGING PROPERTIES OF SUBTERRANEAN FORMATIONS 有权
标题翻译：用于成像下层造型特性的系统和方法
公开(公告)号：US20120119744A1
公开(公告)日：2012-05-17
申请号：US12945928
申请日：2010-11-15
申请人： Tarek Habashy , Andrew Hayman , Yong-Hua Chen , Dzevat Omeragic , Philip Cheung
发明人： Tarek Habashy , Andrew Hayman , Yong-Hua Chen , Dzevat Omeragic , Philip Cheung
IPC分类号： G01V3/18
CPC分类号： G01V3/20 , E21B49/005 , G01V3/088 , G01V3/24
摘要： A system and method for imaging properties of subterranean formations in a wellbore is provided. The system comprises a formation sensor for collecting currents injected into the subterranean formations, the formation sensor positionable on a downhole tool deployable into the wellbore. The system comprises a controller for controlling the formation sensor and a formation imaging unit. The formation imaging unit comprises a current management unit for collecting data from the currents injected into the subterranean formations, the currents having at least two different frequencies. The formation imaging unit comprises a drilling mud data unit for determining at least one drilling mud parameter, a formation data unit for determining at least one formation parameter from the collected data, and an inversion unit for determining at least one formation property by inverting the at least one formation parameter.
摘要翻译：提供了一种用于在井筒中成像地层的特性的系统和方法。该系统包括用于收集注入到地层中的电流的地层传感器，地层传感器可定位在可部署到井筒中的井下工具上。该系统包括用于控制地层传感器和地层成像单元的控制器。地层成像单元包括用于从注入到地层中的电流收集数据的电流管理单元，该电流具有至少两个不同的频率。地层成像单元包括用于确定至少一个钻井泥浆参数的钻井泥浆数据单元，用于根据所收集的数据确定至少一个地层参数的地层数据单元，以及用于通过将at 至少一个地层参数。

49. 发明申请

US20110231098A1 MULTILEVEL WORKFLOW METHOD TO EXTRACT RESISTIVITY ANISOTROPY DATA FROM 3D INDUCTION MEASUREMENTS 有权
标题翻译：从三维感应测量中提取电阻率数据的多工作流方法
公开(公告)号：US20110231098A1
公开(公告)日：2011-09-22
申请号：US12888232
申请日：2010-09-22
申请人： Dzevat Omeragic , Keli Sun , Qiming Li , Tarek Habashy
发明人： Dzevat Omeragic , Keli Sun , Qiming Li , Tarek Habashy
IPC分类号： G01V3/12 , G06F19/00
CPC分类号： G01V3/20 , G01V3/28
摘要： A method is provided for determining formation resistivity, anisotropy and dip from wellbore measurements includes moving a well logging instrument through subsurface formations. The instrument includes longitudinal magnetic dipoles and at least one of tilted and transverse magnetic dipoles. Formation layer boundaries and horizontal resistivities of the formation layers are determined from longitudinal magnetic dipole measurements. Vertical resistivities of the formation layers are determined by inversion of anisotropy sensitive measurements. Improved vertical resistivities of the formation layers and dips are determined by inverting symmetrized and anti-symmetrized measurements. Improved vertical resistivities, improved boundaries and improved dips are determined by inversion of the all dipole measurements. Improved horizontal resistivities, further improved layer boundaries and further improved dips are determined by inversion of all dipole measurements.
摘要翻译：提供了一种用于确定井眼测量的地层电阻率，各向异性和倾角的方法，包括通过地下地层移动测井仪器。仪器包括纵向磁偶极子和倾斜和横向磁偶极子中的至少一个。由纵向磁偶极子测量确定地层的形成层边界和水平电阻率。通过各向异性敏感测量的反演确定形成层的垂直电阻率。通过反转对称和反对称测量来确定形成层和浸渍层的垂直电阻率的改善。通过所有偶极子测量的反演来确定改善的垂直电阻率，改善的边界和改善的倾角。通过所有偶极子测量的反演来确定改进的水平电阻率，进一步改善的层边界和进一步改善的下降。

50. 发明授权

US07991555B2 Electromagnetic directional measurements for non-parallel bed formations 有权
标题翻译：非平行床层的电磁方向测量
公开(公告)号：US07991555B2
公开(公告)日：2011-08-02
申请号：US12182896
申请日：2008-07-30
申请人： Jian Yang , Qiming Li , Dzevat Omeragic , Jean Seydoux , Jacques R. Tabanou , Bernadette Tabanou, legal representative
发明人： Jian Yang , Qiming Li , Dzevat Omeragic , Jean Seydoux , Jacques R. Tabanou
IPC分类号： G01V3/30
CPC分类号： G01V3/30
摘要： An orientation vector, referred to hereinafter as the “geosteering vector,” is directed to the more conductive formation area within the DOI of the tool and away from the more resistive formation areas. Accordingly, drilling in a direction opposite the geosteering vector leads to more resistive formation. Also, the disclosed geosteering vectors obtained from the real and imaginary components will not align with each other for non-planar formations and therefore the misalignment of the geosteering obtained from real and imaginary components is indicative of a non-planar formation. A superposition method is disclosed which can be used to calculate electromagnetic (EM) couplings in a non-planar geometry formation (as well as in a planar geometry formation) in real time, without requiring two or three dimensional modeling calculations.
摘要翻译：以下称为“地质导向矢量”的取向矢量指向工具的DOI内的更加导电的形成区域，并且远离更多电阻的形成区域。因此，在与地质导向矢量相反的方向钻孔导致更多的电阻形成。此外，从实部和虚部分获得的公开的地质导向矢量将不会相互对准以用于非平面形成，并且因此从实部和虚部分组获得的地质导向器的未对准表示非平面形成。公开了一种叠加方法，其可以用于实时地计算非平面几何形状（以及平面几何形状）中的电磁（EM）耦合，而不需要两维或三维建模计算。

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