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1. 发明申请

US20100109672A1 Transient EM for Geosteering and LWD/Wireline Formation Evaluation 有权
标题翻译：用于地质导向和LWD /电缆形成评估的瞬态EM
公开(公告)号：US20100109672A1
公开(公告)日：2010-05-06
申请号：US12263817
申请日：2008-11-03
申请人： Michael B. Rabinovich , Alexandre N. Bespalov , Stanislav W. Forgang , Daniel T. Georgi , Gregory B. Itskovich , Leonty A. Tabarovsky
发明人： Michael B. Rabinovich , Alexandre N. Bespalov , Stanislav W. Forgang , Daniel T. Georgi , Gregory B. Itskovich , Leonty A. Tabarovsky
IPC分类号： G01V3/30
CPC分类号： G01V3/28
摘要： A transmitter on an instrument is used to induce currents in an earth formation when it is turned on or off. A Fourier transform is applied to transient measurements made in the receivers. A multifrequency focusing of the transformed data is used for applications like determination of a distance to an interface in the formation, controlling the drilling direction, determination of formation resistivities and formation strike directions.
摘要翻译：仪器上的变送器用于在接地或关闭时感应地层中的电流。傅立叶变换被应用于在接收机中进行的瞬态测量。变换数据的多频聚焦用于确定到地层中的界面的距离，控制钻井方向，确定地层电阻率和地层撞击方向等应用。

2. 发明授权

US08049507B2 Transient EM for geosteering and LWD/wireline formation evaluation 有权
标题翻译：用于地质导向和LWD /电缆形成评估的瞬态EM
公开(公告)号：US08049507B2
公开(公告)日：2011-11-01
申请号：US12263817
申请日：2008-11-03
申请人： Michael B. Rabinovich , Alexandre N. Bespalov , Stanislav W. Forgang , Daniel T. Georgi , Gregory B. Itskovich , Leonty A. Tabarovsky
发明人： Michael B. Rabinovich , Alexandre N. Bespalov , Stanislav W. Forgang , Daniel T. Georgi , Gregory B. Itskovich , Leonty A. Tabarovsky
IPC分类号： G01V3/08
CPC分类号： G01V3/28
摘要： A transmitter on an instrument is used to induce currents in an earth formation when it is turned on or off. A Fourier transform is applied to transient measurements made in the receivers. A multifrequency focusing of the transformed data is used for applications like determination of a distance to an interface in the formation, controlling the drilling direction, determination of formation resistivities and formation strike directions.
摘要翻译：仪器上的变送器用于在接地或关闭时感应地层中的电流。傅立叶变换被应用于在接收机中进行的瞬态测量。变换数据的多频聚焦用于确定到地层中的界面的距离，控制钻井方向，确定地层电阻率和地层撞击方向等应用。

3. 发明申请

US20100213943A1 METHOD FOR ACCENTUATING SIGNAL FROM AHEAD OF THE BIT 审中-公开
标题翻译：从位的前端识别信号的方法
公开(公告)号：US20100213943A1
公开(公告)日：2010-08-26
申请号：US12710438
申请日：2010-02-23
申请人： Daniel T. Georgi , Gregory B. Itskovich , Michael B. Rabinovich , Leonty A. Tabarovsky
发明人： Daniel T. Georgi , Gregory B. Itskovich , Michael B. Rabinovich , Leonty A. Tabarovsky
IPC分类号： G01V3/18
CPC分类号： G01V3/28 , G01V11/00 , G01V2210/6163 , G01V2210/6167
摘要： A method for estimating a property of a portion of an earth formation ahead of a borehole penetrating the formation, the method includes: conveying a logging tool through the borehole; receiving one or more first signals from a previous depth of the logging tool; constructing a model of the earth formation using the one or more first signals; predicting one or more second signals from the portion of the earth formation ahead of the borehole using the model; receiving one or more third signals from the portion of the earth formation ahead of the borehole; calculating a difference between the one or more third signals and the one or more second signals; and estimating the property from the difference.
摘要翻译：一种用于估计穿过地层的井眼之前的地层的一部分的性质的方法，所述方法包括：将测井工具传送通过所述钻孔; 从测井工具的先前深度接收一个或多个第一信号; 使用所述一个或多个第一信号构造地层的模型; 使用该模型预测来自钻孔前方的地层部分的一个或多个第二信号; 从钻孔前面的地层部分接收一个或多个第三信号; 计算所述一个或多个第三信号与所述一个或多个第二信号之间的差; 并从差异估算属性。

4. 发明申请

US20100295548A1 METHODS AND APPARATUS FOR PROVIDING COMPLIMENTARY RESISTIVITY AND STANDOFF IMAGE 审中-公开
标题翻译：提供合成电阻率和标准图像的方法和装置
公开(公告)号：US20100295548A1
公开(公告)日：2010-11-25
申请号：US12784084
申请日：2010-05-20
申请人： Daniel T. Georgi , Gregory B. Itskovich , Alexandre N. Bespalov , Michael B. Rabinovich , Billy Harold Corley
发明人： Daniel T. Georgi , Gregory B. Itskovich , Alexandre N. Bespalov , Michael B. Rabinovich , Billy Harold Corley
IPC分类号： G01V3/02
CPC分类号： G01V3/24
摘要： A method for presenting a formation property to a user includes estimating an initial property of the formation using a tool conveyed in a borehole and estimating a relationship between the tool and the formation based on information received from the tool. The method also includes presenting the user a first output based at least in part on the initial property and presenting a second output based at least in part on the relationship proximate the first output.
摘要翻译：用于向用户呈现地层特性的方法包括使用在钻孔中传送的工具来估计地层的初始属性，并且基于从工具接收的信息来估计工具与地层之间的关系。该方法还包括至少部分地基于初始属性向用户呈现第一输出，并且至少部分地基于接近第一输出的关系呈现第二输出。

5. 发明授权

US08203344B2 Method and apparatus for resistivity imaging in boreholes with an antenna and two spaced apart electrodes 有权
标题翻译：在具有天线和两个间隔开的电极的钻孔中进行电阻率成像的方法和装置
公开(公告)号：US08203344B2
公开(公告)日：2012-06-19
申请号：US11521016
申请日：2006-09-14
申请人： Randy Gold , Rashid W. Khokhar , Alexandre N. Bespalov , Leonty A. Tabarovsky , Gregory B. Itskovich
发明人： Randy Gold , Rashid W. Khokhar , Alexandre N. Bespalov , Leonty A. Tabarovsky , Gregory B. Itskovich
IPC分类号： G01V3/00
CPC分类号： G01V3/24
摘要： An apparatus, method and computer-readable medium for evaluating an earth formation are disclosed. The apparatus includes at least one coil on a logging tool conveyed in a borehole in the earth formation. Passage of a current through the coil induces an electrical current in the earth formation. At least two electrodes associated with the logging tool and in proximity to a wall of the borehole have a potential difference in response to the induced electrical current that is indicative of a property of the earth formation. The at least one coil may be mounted on a mandrel of a downhole assembly. The electrodes may be positioned on a first pad extendable from a mandrel of the downhole assembly.
摘要翻译：公开了一种用于评估地层的装置，方法和计算机可读介质。该装置包括在地层中的钻孔中输送的测井工具上的至少一个线圈。通过线圈的电流在地层中引起电流。与测井工具相关联并且靠近钻孔壁的至少两个电极具有响应于感应电流的电位差，其表示地层的性质。至少一个线圈可以安装在井下组件的心轴上。电极可以定位在可从井下组件的心轴延伸的第一垫上。

6. 发明授权

US07876102B2 Mixed galvanic-inductive imaging in boreholes 有权
标题翻译：钻孔混合电感成像
公开(公告)号：US07876102B2
公开(公告)日：2011-01-25
申请号：US11852900
申请日：2007-09-10
申请人： Randy Gold , Rashid W. Khokhar , Alexandre N. Bespalov , Leonty A. Tabarovsky , Gregory B. Itskovich
发明人： Randy Gold , Rashid W. Khokhar , Alexandre N. Bespalov , Leonty A. Tabarovsky , Gregory B. Itskovich
IPC分类号： G01V3/02
CPC分类号： G01V3/24
摘要： A mixed mode tool uses an inductive source and detects galvanic currents and/or potentials at electrodes in proximity to a borehole wall to produce a resistivity image of the earth formation. Alternative, the magnetic field produced by a galvanic current is detected by an antenna coil and used to produce a resistivity image.
摘要翻译：混合模式工具使用感应源并检测靠近钻孔壁的电极处的电流和/或电位，以产生地层的电阻率图像。另一方面，由电流产生的磁场由天线线圈检测并用于产生电阻率图像。

7. 发明授权

US6060886A Radial sounding electrical well logging instrument 失效
标题翻译：径向探测电测井仪
公开(公告)号：US6060886A
公开(公告)日：2000-05-09
申请号：US7159
申请日：1998-01-14
申请人： Leonty A. Tabarovsky , Antonio Fabris , Alberto G. Mezzatesta , Gregory B. Itskovich
发明人： Leonty A. Tabarovsky , Antonio Fabris , Alberto G. Mezzatesta , Gregory B. Itskovich
IPC分类号： G01V3/24 , G01V3/18
CPC分类号： G01V3/24
摘要： An apparatus for determining radial distribution of resistivity of earth formations surrounding a wellbore. The apparatus includes a sonde mandrel having an insulating exterior surface and electrodes disposed on the insulating surface at spaced apart locations. The electrodes are connected to circuits for measuring a focused current resistivity within a predetermined longitudinal span. The electrodes are also connected to circuits for measuring electrical impedance between pairs of electrodes spaced apart at a plurality of different longitudinal spacings. The preferred embodiment includes a voltage measuring circuit interconnected between a pair of electrodes which is positioned between a closest spaced pair of electrodes connected to the impedance measuring circuits, so that a vertical resolution of the impedance measurements can be limited to approximately the axial spacing of the pair of electrodes connected to the voltage measuring circuit. A method according to the invention for determining the distribution of resistivity of earth formations surrounding a wellbore includes the steps of measuring a focused current resistivity of the earth formations to determine a composite resistivity of an uninvaded zone, an invaded zone and a flushed zone. Impedance is measured between pairs of electrodes, each pair having a different longitudinal spacing, and resistivity of the flushed zone and the invaded zone are determined from the measurements of impedance. The resistivity of the uninvaded zone can then be determined from the measurement of focused current resistivity.
摘要翻译：一种用于确定井筒周围的地层的电阻率的径向分布的装置。该设备包括具有绝缘外表面的探头心轴和在间隔开的位置处设置在绝缘表面上的电极。电极连接到用于测量预定纵向跨度内的聚焦电流电阻率的电路。电极还连接到用于测量以多个不同纵向间隔间隔开的电极对之间的电阻抗的电路。优选实施例包括互连在一对电极之间的电压测量电路，该对电极位于连接到阻抗测量电路的最近间隔的一对电极之间，使得阻抗测量的垂直分辨率可以被限制在近似于一对电极连接到电压测量电路。根据本发明的用于确定围绕井筒的地层的电阻率分布的方法包括以下步骤：测量地层的聚焦电流电阻率以确定未浸没区域，入侵区域和冲洗区域的复合电阻率。电阻对之间测量阻抗，每对电极具有不同的纵向间隔，并且从阻抗的测量值确定冲洗区域和入侵区域的电阻率。然后可以从聚焦电流电阻率的测量来确定非浸没区域的电阻率。

8. 发明授权

US09297921B2 DTEM with short spacing for deep, ahead of the drill bit measurements 有权
标题翻译： DTEM具有较短的间距深度，提前钻头测量
公开(公告)号：US09297921B2
公开(公告)日：2016-03-29
申请号：US13220363
申请日：2011-08-29
申请人： Gregory B. Itskovich , Arcady Reiderman , Michael B. Rabinovich , Sergey Martakov , Emma Iomdina
发明人： Gregory B. Itskovich , Arcady Reiderman , Michael B. Rabinovich , Sergey Martakov , Emma Iomdina
IPC分类号： G01V1/40 , G01V3/08 , G01V3/10 , G01V3/00 , G01V3/28 , E21B47/00 , E21B47/10 , E21B41/00
CPC分类号： G01V3/28 , E21B41/0092 , E21B47/00 , E21B47/10
摘要： A transmitter on a bottomhole assembly (BHA) is used for generating a transient electromagnetic signal in an earth formation. A processor estimates the distance to a resistivity interface using a signal produced by a receiver on the BHA. The transmitter-receiver distance may be less than 1 m. The estimation of the distance is done in real time using a thin conductive sheet approximation.
摘要翻译：井底组件（BHA）上的发射器用于在地层中产生瞬态电磁信号。处理器使用由BHA上的接收器产生的信号估计到电阻率界面的距离。发射机 - 接收机距离可能小于1米。距离的估计是使用薄导电片近似来实时实现的。

9. 发明申请

US20120059586A1 DTEM With Short Spacing for Deep, Ahead of the Drill Bit Measurements 有权
标题翻译： DTEM具有较短的间距，深入钻头测量
公开(公告)号：US20120059586A1
公开(公告)日：2012-03-08
申请号：US13220363
申请日：2011-08-29
申请人： Gregory B. Itskovich , Arcady Reiderman , Michael B. Rabinovich , Sergey Martakov , Emma Iomdina
发明人： Gregory B. Itskovich , Arcady Reiderman , Michael B. Rabinovich , Sergey Martakov , Emma Iomdina
IPC分类号： G01V3/38 , G01V3/30
CPC分类号： G01V3/28 , E21B41/0092 , E21B47/00 , E21B47/10
摘要： A transmitter on a bottomhole assembly (BHA) is used for generating a transient electromagnetic signal in an earth formation. A processor estimates the distance to a resistivity interface using a signal produced by a receiver on the BHA. The transmitter-receiver distance may be less than 1 m. The estimation of the distance is done in real time using a thin conductive sheet approximation.
摘要翻译：井底组件（BHA）上的发射器用于在地层中产生瞬态电磁信号。处理器使用由BHA上的接收器产生的信号估计到电阻率界面的距离。发射机 - 接收机距离可能小于1米。距离的估计是使用薄导电片近似来实时实现的。

10. 发明授权

US08554482B2 Monitoring reservoirs using array based controlled source electromagnetic methods 有权
标题翻译：使用基于阵列的受控源电磁方法监测储层
公开(公告)号：US08554482B2
公开(公告)日：2013-10-08
申请号：US12436005
申请日：2009-05-05
申请人： Roger W. Fincher , Michael B. Rabinovich , Gregory B. Itskovich
发明人： Roger W. Fincher , Michael B. Rabinovich , Gregory B. Itskovich
IPC分类号： G01V3/18 , G01V3/12 , G01V3/08
CPC分类号： G01V3/12 , G01V3/083
摘要： Electrical property contrast difference maps of the subsurface formations may be produced using surface and/or near surface array of transmitters and receivers tuned to emit and receive electromagnetic (EM) signals. The electrical property may be resistivity or conductivity. The maps may be time based. A time based trend change may be used to predict the location and movement of fluids within the hydrocarbon bearing or any other subsurface zones where resistivity and/or conductivity values of the fluids within these zones change over time.
摘要翻译：地下地层的电气特性对比差异图可以使用调谐发射和接收电磁（EM）信号的发射器和接收器的表面和/或近表面阵列产生。电性能可以是电阻率或电导率。地图可能是基于时间的。基于时间的趋势变化可用于预测烃轴承或任何其他地下区域内的流体的位置和运动，其中这些区域内的流体的电阻率和/或电导率值随时间而变化。

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