公开(公告)号：US08497685B2

公开(公告)日：2013-07-30

申请号：US11805230

申请日：2007-05-22

申请人： Junichi Sugiura

发明人： Junichi Sugiura

IPC分类号： G01V3/08

CPC分类号： E21B47/024

摘要： Aspects of this invention include a downhole tool having an angular position sensor disposed to measure the relative angular position between first and second members disposed to rotate about a common axis. A plurality of magnetic field sensors are deployed about the second member and disposed to measure magnetic flux emanating from first and second magnets deployed on the first member. A controller is programmed to determine the relative angular position based on magnetic measurements made by the magnetic field sensors. In a one exemplary embodiment, a downhole steering tool includes first and second magnets circumferentially spaced on the shaft and a plurality of magnetic field sensors deployed about the housing.

摘要翻译： 本发明的方面包括井下工具，其具有角位置传感器，该角度位置传感器设置成测量第一和第二构件之间的相对角位置，所述第一和第二构件被设置成围绕公共轴线 多个磁场传感器围绕第二构件展开并设置成测量从部署在第一构件上的第一和第二磁体发出的磁通量。 控制器被编程为基于由磁场传感器进行的磁测量来确定相对角位置。 在一个示例性实施例中，井下转向工具包括在轴上周向间隔开的第一和第二磁体以及围绕壳体展开的多个磁场传感器。

公开(公告)号：US08408331B2

公开(公告)日：2013-04-02

申请号：US12684205

申请日：2010-01-08

申请人： Ruchir S. Patwa ,  Pralay Das ,  Junichi Sugiura

发明人： Ruchir S. Patwa ,  Pralay Das ,  Junichi Sugiura

IPC分类号： E21B21/08

CPC分类号： E21B47/12 ,  E21B47/011 ,  E21B47/06 ,  E21B47/18

摘要： A downhole tool includes a downlinking system deployed in a downhole tool body having an internal through bore. The downlinking system includes a differential pressure transducer configured to measured a pressure difference between drilling fluid in the internal through bore and drilling fluid external to the tool (in the borehole annulus). The differential transducer is electrically connected with an electronic controller (deployed substantially anywhere in the drill string) that is configured to receive and decode pressure waveforms.

摘要翻译： 井下工具包括部署在具有内部通孔的井下工具主体中的下行系统。 下行链路系统包括差压传感器，其被配置为测量内部通孔中的钻井流体和工具外部（在井眼环空间）中的钻井流体之间的压力差。 差分换能器与配置为接收和解码压力波形的电子控制器（基本上在钻柱中的任何地方部署）电连接。

公开(公告)号：US20120090827A1

公开(公告)日：2012-04-19

申请号：US13333664

申请日：2011-12-21

申请人： Junichi Sugiura

发明人： Junichi Sugiura

IPC分类号： G01V3/18 ,  E21B47/12 ,  E21B17/02

CPC分类号： G01V11/002 ,  E21B17/028

摘要： Aspects of this invention include a downhole assembly having a non-contact, capacitive coupling including first and second transceivers deployed in corresponding first and second downhole tool members. The capacitive coupling is disposed to transfer electrical signals between the first and second transceivers. In one exemplary embodiment, the capacitive coupling is configured to transfer data and power between a substantially non-rotating tool member and a rotating tool member, for example, the shaft and blade housing in a steering tool. Exemplary embodiments of this invention provide a non-contact, high-speed data communication channel between first and second members of a downhole assembly. Moreover, exemplary embodiments of the invention also provide for simultaneous non-contact transmission of electrical power between the first and second tool members.

摘要翻译： 本发明的方面包括具有非接触电容耦合的井下组件，其包括部署在相应的第一和第二井下工具构件中的第一和第二收发器。 电容耦合被布置成在第一和第二收发器之间传送电信号。 在一个示例性实施例中，电容耦合被配置为在基本上不旋转的工具构件和旋转工具构件（例如，转向工具中的轴和刀片壳体）之间传送数据和动力。 本发明的示例性实施例提供了井下组件的第一和第二构件之间的非接触式高速数据通信通道。 此外，本发明的示例性实施例还提供了在第一和第二工具构件之间的同时非接触式电力传输。

公开(公告)号：US20110038559A1

公开(公告)日：2011-02-17

申请号：US12911851

申请日：2010-10-26

申请人： Junichi Sugiura ,  Jun Zhang ,  Paul Boonen ,  Zhipeng Liu

发明人： Junichi Sugiura ,  Jun Zhang ,  Paul Boonen ,  Zhipeng Liu

IPC分类号： G06K9/40 ,  G06K9/36

CPC分类号： G06T5/002 ,  G01V1/48 ,  G06T5/10

摘要： A method for removing cyclic noise from a borehole image includes transforming the image into the frequency domain using a two-dimensional (2-D) transform (e.g., using a discrete cosine transform). The cyclic noise components (peaks) are removed from the transformed image which is then inverse transformed back into the spatial domain using an inverse 2-D transform to obtain a corrected image. An automated method enables the cyclic peaks to be identified and removed from the borehole image via downhole processing.

摘要翻译： 从井眼图像中去除循环噪声的方法包括使用二维（2-D）变换（例如，使用离散余弦变换）将图像变换成频域。 循环噪声分量（峰值）从变换图像中去除，然后使用逆二维变换逆向变换回空间域，以获得校正图像。 一种自动化方法使得能够通过井下处理从钻孔图像识别和去除循环峰。

公开(公告)号：US07558675B2

公开(公告)日：2009-07-07

申请号：US11881043

申请日：2007-07-25

申请人： Junichi Sugiura

发明人： Junichi Sugiura

IPC分类号： G06F19/00

CPC分类号： G01V11/00

摘要： A method for forming a borehole image of an azimuthally sensitive borehole or formation parameter is disclosed. Such a borehole image may be formed, for example, by processing logging sensor data with a predetermined sensor response function (also referred to herein as a probability density function) to acquire probabilistically distributed sensor data. The sensor data may be distributed in either one-dimension (azimuthal) or two-dimensions (azimuthal and axial). Certain embodiments of this invention may be advantageously utilized in LWD imaging applications and provide for superior image resolution and noise rejection as compared to prior art binning techniques. Exemplary embodiments of the invention also advantageously conserve logging sensor data such that integration of the distributed data over the entire circumference of the tool provides a non-azimuthally sensitive logging measurement.

摘要翻译： 公开了一种用于形成方位角敏感井眼或地层参数的井眼图像的方法。 这样的钻孔图像可以例如通过用预定的传感器响应函数（此处也称为概率密度函数）处理记录传感器数据来获取概率分布的传感器数据来形成。 传感器数据可以分布在一维（方位角）或二维（方位角和轴向）中。 与现有技术的合并技术相比，本发明的某些实施例可以有利地用于LWD成像应用中并提供优异的图像分辨率和噪声抑制。 本发明的示例性实施例还有利地保存测井传感器数据，使得分布式数据在工具的整个圆周上的集成提供非方位敏感测井测量。

公开(公告)号：US20090090554A1

公开(公告)日：2009-04-09

申请号：US12332911

申请日：2008-12-11

申请人： Junichi Sugiura ,  Stephen Jones

发明人： Junichi Sugiura ,  Stephen Jones

IPC分类号： E21B44/00 ,  G01V9/00

CPC分类号： E21B7/062 ,  E21B47/08

摘要： Aspects of this invention include a downhole tool and method for making a physical caliper measurement of a subterranean borehole. The tool is configured to make the physical borehole caliper measurement only when the measured pressure in each of three or more outwardly extendable blades is greater than a predetermined threshold pressure. Blade positions are measured and the borehole caliper calculated only when the pressure in each of the blades exceeds the threshold. Exemplary embodiments of the invention enable physical caliper measurements to be made with increased accuracy with each of the blades making firm contact with the borehole wall. Methods in accordance with the invention are especially well suited for use in directional drilling applications in that they tend to enable accurate caliper measurements to be made without repositioning the steering tool in the borehole.

摘要翻译： 本发明的方面包括用于制造地下钻孔的物理测径仪的井下工具和方法。 只有当三个或更多个可向外延伸的叶片中的每一个中的测量压力大于预定阈值压力时，该工具被配置为仅进行物理钻孔测径器测量。 测量叶片位置，只有当每个叶片中的压力超过阈值时才计算出钻孔厚度。 本发明的示例性实施例使得能够以增加的精度进行物理测径，其中每个叶片与钻孔壁牢固接触。 根据本发明的方法特别适用于定向钻井应用，因为它们倾向于使得能够进行准确的卡尺测量，而不需要在井眼中重新定位转向工具。

公开(公告)号：US20090030616A1

公开(公告)日：2009-01-29

申请号：US11881043

申请日：2007-07-25

申请人： Junichi Sugiura

发明人： Junichi Sugiura

IPC分类号： G01V3/18

CPC分类号： G01V11/00

摘要： A method for forming a borehole image of an azimuthally sensitive borehole or formation parameter is disclosed. Such a borehole image may be formed, for example, by processing logging sensor data with a predetermined sensor response function (also referred to herein as a probability density function) to acquire probabilistically distributed sensor data. The sensor data may be distributed in either one-dimension (azimuthal) or two-dimensions (azimuthal and axial). Certain embodiments of this invention may be advantageously utilized in LWD imaging applications and provide for superior image resolution and noise rejection as compared to prior art binning techniques. Exemplary embodiments of the invention also advantageously conserve logging sensor data such that integration of the distributed data over the entire circumference of the tool provides a non-azimuthally sensitive logging measurement.

公开(公告)号：US07464770B2

公开(公告)日：2008-12-16

申请号：US11595054

申请日：2006-11-09

申请人： Stephen Jones ,  Junichi Sugiura

发明人： Stephen Jones ,  Junichi Sugiura

IPC分类号： E21B21/08 ,  E21B7/04

CPC分类号： E21B7/062

摘要： Aspects of this invention include a steering tool having a controller configured to provide closed-loop control of hydraulic fluid pressure. In one exemplary embodiment, closed-loop control of a system (reservoir) pressure may be provided. In another embodiment, closed-loop control of a blade pressure may be provided while the blade remains substantially locked at a predetermined position. Other exemplary embodiments may incorporate rule-based-intelligence such that pressure control thresholds may be determined based on various measured and/or predetermined downhole parameters. The invention tends to reduce the friction (drag) between the blades and the borehole wall and thereby also tends to improve drilling rates. Moreover, the invention also tends to improve the service life and reliability of downhole steering tools.

摘要翻译： 本发明的方面包括具有被配置为提供液压流体压力的闭环控制的控制器的转向工具。 在一个示例性实施例中，可以提供系统（储存器）压力的闭环控制。 在另一个实施例中，可以在叶片保持基本上锁定在预定位置的同时提供叶片压力的闭环控制。 其他示例性实施例可以包括基于规则的智能，使得可以基于各种测量和/或预定的井下参数来确定压力控制阈值。 本发明倾向于减小叶片与钻孔壁之间的摩擦（阻力），从而也提高钻井速率。 此外，本发明还倾向于提高井下转向工具的使用寿命和可靠性。

公开(公告)号：US20080294344A1

公开(公告)日：2008-11-27

申请号：US11805230

申请日：2007-05-22

申请人： Junichi Sugiura

发明人： Junichi Sugiura

IPC分类号： G01B7/30 ,  E21B47/024

CPC分类号： E21B47/024

摘要： Aspects of this invention include a downhole tool having an angular position sensor disposed to measure the relative angular position between first and second members disposed to rotate about a common axis. A plurality of magnetic field sensors are deployed about the second member and disposed to measure magnetic flux emanating from first and second magnets deployed on the first member. A controller is programmed to determine the relative angular position based on magnetic measurements made by the magnetic field sensors. In a one exemplary embodiment, a downhole steering tool includes first and second magnets circumferentially spaced on the shaft and a plurality of magnetic field sensors deployed about the housing.

摘要翻译： 本发明的方面包括井下工具，其具有角位置传感器，该角度位置传感器设置成测量第一和第二构件之间的相对角位置，所述第一和第二构件被设置成围绕公共轴线 多个磁场传感器围绕第二构件展开并设置成测量从部署在第一构件上的第一和第二磁体发出的磁通量。 控制器被编程为基于由磁场传感器进行的磁测量来确定相对角位置。 在一个示例性实施例中，井下转向工具包括在轴上周向间隔开的第一和第二磁体以及围绕壳体展开的多个磁场传感器。

公开(公告)号：US07426967B2

公开(公告)日：2008-09-23

申请号：US11273692

申请日：2005-11-14

申请人： Junichi Sugiura

发明人： Junichi Sugiura

IPC分类号： E21B7/04

CPC分类号： E21B47/024 ,  E21B7/062

摘要： Aspects of this invention include a downhole tool (such as a steering tool) including first and second sensor sets for measuring substantially instantaneous drill string rotation rates. Each of the sensor sets includes at least one accelerometer disposed to measure cross-axial acceleration components. Embodiments of this invention advantageously enable gravitational and tool shock/vibration acceleration components to be cancelled out, thereby improving accuracy. Moreover, exemplary embodiments of this enable stick/slip conditions to be detected and accommodated.

摘要翻译： 本发明的方面包括井下工具（例如转向工具），其包括用于测量基本上瞬时的钻柱旋转速率的第一和第二传感器组。 传感器组中的每一个包括设置成测量横轴加速度分量的至少一个加速度计。 本发明的实施例有利地能够抵消重力和工具冲击/振动加速分量，从而提高精度。 此外，这种示例性实施例使得能够检测和容纳粘性/滑移条件。