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1. 发明授权

US09760104B2 Bulk current regulation loop 有权
公开(公告)号：US09760104B2
公开(公告)日：2017-09-12
申请号：US14833229
申请日：2015-08-24
申请人： SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
发明人： Petr Kadanka
IPC分类号： G05F1/56 , G05F1/575 , G05F1/565
CPC分类号： G05F1/575 , G05F1/565
摘要： An illustrative method embodiment includes: sensing a source-drain current provided by the output transistor; and controlling a bulk current from a body terminal of the output transistor in response to the source-drain current. The controlling includes: maintaining the bulk current at an operating value while the source-drain current is in an active range; and reducing the bulk current below the operating value when the source-drain current lies outside the active range. An illustrative circuit embodiment includes: an output transistor that supplies an output current over a range that includes an active region; and a bulk current adapter that senses the output current and responsively controls a bulk current from a body terminal of the output transistor, maintaining the bulk current at an operating value while the output current is in the active region and reducing the bulk current when the output current is outside the active region.

2. 发明授权

US09715024B2 Near-field electromagnetic communications network for downhole telemetry 有权
公开(公告)号：US09715024B2
公开(公告)日：2017-07-25
申请号：US13387843
申请日：2009-08-11
申请人： Etienne M. Samson , Paul F. Rodney
发明人： Etienne M. Samson , Paul F. Rodney
IPC分类号： G01V3/00 , G01V1/00
CPC分类号： G01V1/003
摘要： A disclosed downhole telemetry system employs an array of near-field electromagnetic communication devices to relay information along a tubular in a borehole. In some embodiments, the devices are permanently attached to pipe joints without requiring any structural modification of the pipe joints. As the pipe joints are strung together in the normal fashion to form a tubular, the devices automatically establish a wireless communications path between an uphole terminus device and any downhole sensors or tools. The devices can include built-in sensors to provide distributed sensing of parameters such as temperature and pressure. In some embodiments the device array incorporates redundancy to minimize the chance of a communications network failure. The device array has applications for logging-while-drilling, production testing, well completion, reservoir monitoring, and well control.

3. 发明授权

US09696451B2 Resistivity logging tool with excitation current control based on multi-cycle comparison 有权
公开(公告)号：US09696451B2
公开(公告)日：2017-07-04
申请号：US14904917
申请日：2014-06-10
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： Joni Polili Lie , Alberto Quintero , Abdul Qadir Shabbir , Daniel Viassolo , Burkay Donderici , Luis Emilio San Martin
IPC分类号： G01V3/00 , G01V3/38 , G01V3/24 , G01V3/18
CPC分类号： G01V3/38 , G01V3/18 , G01V3/24
摘要： A resistivity logging system includes a plurality of excitation electrodes, at least one return electrode, and a plurality of monitor electrodes. The resistivity logging system also includes a controller that determines a level of excitation current to be emitted by at least one of the plurality of excitation electrodes during a subsequent excitation cycle based on a comparison of measured downhole parameter values corresponding to excitation current emitted in two previous excitation cycles.

4. 发明授权

US09667407B1 Integrated multi-channel receiver having independent clock recovery modules with enhanced inductors 有权
公开(公告)号：US09667407B1
公开(公告)日：2017-05-30
申请号：US15154567
申请日：2016-05-13
申请人： Credo Technology Group Limited
发明人： Xike Liu , Kei Peng , Chan Ho Yeung , YiFei Dai , Lawrence (Chi Fung) Cheng , Runsheng He
IPC分类号： H04L7/00 , H04B10/61
CPC分类号： H04L7/0079 , H01F17/0006 , H03B5/1212 , H03B5/1228 , H03L7/07 , H03L7/0807 , H03L7/0812 , H03L7/091 , H03L7/099 , H04B10/6164 , H04B10/6165 , H04L7/0025 , H04L7/007 , H04L7/02
摘要： A multichannel receiver includes multiple receiver modules, each having: a voltage-controlled oscillator that generates a clock signal with a controllable frequency; a phase interpolator that applies a controllable phase shift to the clock signal to provide a sampling signal; a sampling element that produces a digital receive signal by sampling an analog receive signal in accordance with the sampling signal; a timing error estimator that operates on the digital receive signal to provide timing error estimates; a phase control filter that derives, from the timing error estimates, a phase control signal supplied to the phase interpolator, wherein the phase control signal minimizes a phase error between the sampling signal and the analog receive signal; and a frequency control filter that derives, from the timing error estimates, a frequency control signal for controlling the clock signal frequency, wherein the frequency control signal minimizes a frequency offset between the clock signal and the analog receive signal.

5. 发明授权

US09638022B2 Systems and methods for displaying logging data 有权
公开(公告)号：US09638022B2
公开(公告)日：2017-05-02
申请号：US12295158
申请日：2008-03-20
申请人： Michael S. Bittar , Martin D. Paulk , Gary Althoff , Paul F. Rodney , Frode Hveding
发明人： Michael S. Bittar , Martin D. Paulk , Gary Althoff , Paul F. Rodney , Frode Hveding
IPC分类号： G06T19/00 , E21B47/00 , G01V1/34
CPC分类号： E21B47/00 , G01V1/34 , G06T19/00
摘要： Borehole data presentation systems and methods that facilitate communication of volumetric logging data to a surface processing system for presentation to a driller or other user interested in visualizing the formations surrounding a borehole. The disclosed systems optionally tailor the telemetry stream to match the chosen display technique, thereby maximizing the logging system utility for the driller. Variable opacity of certain data regions or certain data discontinuities greatly facilitates data comprehension, particularly when true three-dimensional display technologies are employed. Holographic or stereoscopic display technologies may be employed to show the three-dimensional dependence of measured formation properties such as resistivity, density, and porosity. Alternatively, the radial axis can be used to represent a formation parameter value, thereby enabling cylindrical cross-plots of multiple measurements. The user can control viewing position and orientation to more fully explore the three dimensional representation.

6. 发明授权

US09620585B1 Termination for a stacked-gate super-junction MOSFET 有权
公开(公告)号：US09620585B1
公开(公告)日：2017-04-11
申请号：US15205247
申请日：2016-07-08
申请人： SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
发明人： Gary H. Loechelt , Gordon M. Grivna
IPC分类号： H01L29/66 , H01L29/78 , H01L29/06
CPC分类号： H01L29/7827 , H01L21/26513 , H01L29/0623 , H01L29/0634 , H01L29/36 , H01L29/66666 , H01L29/66734 , H01L29/7805 , H01L29/7811 , H01L29/7813
摘要： At least some illustrative device embodiments include a highly-doped n-type semiconductor substrate having a first epitaxial layer of a lightly-doped n-type semiconductor; and a second epitaxial layer of a lightly-doped p-type semiconductor to form a vertical diode with the first epitaxial layer. A termination structure near the outer edges of the device includes a termination well in the second epitaxial layer, the termination well being a moderately-doped n-type semiconductor so as to form a horizontal diode with the second epitaxial layer. The structure further includes an electric field barrier. The electric field barrier includes at least one vertical trench extending through the termination well into the first epitaxial layer and exposing a sidewall region. The sidewall region is doped via the sidewalls to be a moderately-doped p-type semiconductor. Also provided are sidewall layers of a moderately-doped n-type semiconductor, the sidewalls electrically coupling the termination well to the substrate.

7. 发明授权

US09581706B2 Geophone with tunable resonance frequency 有权
标题翻译：地震检波器具有可调共振频率
公开(公告)号：US09581706B2
公开(公告)日：2017-02-28
申请号：US14910234
申请日：2013-12-31
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： Wei Hsuan Huang
IPC分类号： G01V1/00 , G01V1/18 , G01V1/42
CPC分类号： G01V1/184 , G01V1/183 , G01V1/42 , G01V2210/1429
摘要： An illustrative geophone with tunable resonance frequency includes a first inductive assembly including an inductive coil having a first magnet arranged therein, wherein the first magnet and the first inductive coil move relative to each other, and a second inductive assembly including a second inductive coil having a second magnet arranged therein, wherein the second magnet and the second inductive coil move relative to each other. A coupling element couples a movable element of the first inductive assembly with a moveable element of the second inductive assembly. The first inductive assembly employs tunable damping to modify a resonant frequency of the second inductive assembly.
摘要翻译：具有可调共振频率的示例性地震检波器包括第一感应组件，其包括具有布置在其中的第一磁体的感应线圈，其中第一磁体和第一感应线圈相对于彼此移动，第二感应组件包括第二感应线圈，布置在其中的第二磁体，其中第二磁体和第二感应线圈相对于彼此移动。耦合元件将第一感应组件的可移动元件与第二感应组件的可移动元件连接。第一感应组件采用可调阻尼来修改第二感应组件的谐振频率。

8. 发明授权

US09575199B2 Downhole fluid resistivity sensor systems and methods 有权
标题翻译：井下流体电阻率传感器系统及方法
公开(公告)号：US09575199B2
公开(公告)日：2017-02-21
申请号：US14388193
申请日：2012-03-28
申请人： Wei Zhang , Lizheng Zhang , Li Gao , David Earl Ball
发明人： Wei Zhang , Lizheng Zhang , Li Gao , David Earl Ball
IPC分类号： G01V3/02 , G01V3/20 , E21B49/08
CPC分类号： G01V3/02 , E21B49/08 , G01V3/20
摘要： Disclosed is a downhole fluid resistivity sensor that includes a ceramic cylinder having a fluid-contacting surface, and at least four metal pins that penetrate a wall of the ceramic cylinder at axially-spaced locations. The pins are bonded to the ceramic to form a pressure seal. The sensor may include a circuit that injects current into a fluid via an outer two of the pins, and measures a resulting voltage via an inner two of the pins. The circuit may also provide an indication of fluid resistivity based at least in part on the resulting voltage. At each of the axially-spaced locations, a set of multiple pins may penetrate the wall to contact the fluid at circumferentially-spaced positions. The fluid-contacting surface may be an inner surface or an outer surface of the ceramic cylinder. A downhole fluid resistivity measurement method is also described.
摘要翻译：公开了一种井下流体电阻率传感器，其包括具有流体接触表面的陶瓷圆筒，以及至少四个在轴向间隔开的位置处穿过陶瓷圆柱壁的金属销。销钉结合到陶瓷上以形成压力密封。传感器可以包括经由外部两个引脚将电流注入流体的电路，并且经由内部两个引脚测量所得到的电压。该电路还可以至少部分地基于所得到的电压来提供流体电阻率的指示。在每个轴向间隔的位置处，一组多个销可以穿透壁以在周向间隔的位置处接触流体。流体接触表面可以是陶瓷圆筒的内表面或外表面。还描述了井下流体电阻率测量方法。

9. 发明授权

US09568634B2 Coil winding methods for downhole logging tools 有权
标题翻译：井下测井工具的卷绕方法
公开(公告)号：US09568634B2
公开(公告)日：2017-02-14
申请号：US14237674
申请日：2011-08-10
申请人： Evan L. Davies , Luis E. San Martin
发明人： Evan L. Davies , Luis E. San Martin
IPC分类号： G01V3/30 , G01V3/28
CPC分类号： G01V3/30 , G01V3/28
摘要： A logging tool and method for winding a multi-component induction (MCI) antenna is presented. The method eliminates unwanted dipole signals that are created by the voltage drop that takes place in the transmitter. The antenna is made of at least two parts physically separated, one on each side of the mandrel. The winding method is performed in a way that creates at least four windings arranged to eliminate dipole signals attributable to an asymmetric voltage distribution. The midpoint of the conductive wire that for is the antenna windings may be electrically attached to the tool body. This method is suitable for the winding of the cross-components X and Y of the MCI coil arrays.
摘要翻译：提出了一种用于卷绕多分量感应（MCI）天线的测井工具和方法。该方法消除了由发射器中发生的电压降产生的不需要的偶极子信号。天线由物理分离的至少两个部分制成，一个在心轴的每一侧。卷绕方法以产生至少四个绕组排列的方式进行，以消除归因于不对称电压分布的偶极子信号。作为天线绕组的导线的中点可以电连接到工具主体。该方法适用于MCI线圈阵列的交叉分量X和Y的绕组。

10. 发明授权

US09523436B2 Valve assembly and system 有权
标题翻译：阀组件和系统
公开(公告)号：US09523436B2
公开(公告)日：2016-12-20
申请号：US12525302
申请日：2008-02-06
申请人： Zahroof Mohamed , Darren D. Matheny
发明人： Zahroof Mohamed , Darren D. Matheny
IPC分类号： F04B39/10 , F16K15/06 , F16K31/08
CPC分类号： F16K15/066 , F04B39/1013 , F16K31/084
摘要： A novel valve assembly is provided. In one embodiment, the valve assembly includes a seat plate that includes a fluid conduit and an impact bushing that is coupled to the seat plate at a position adjacent to the fluid conduit. The valve assembly also includes a sealing assembly that is configured to form a seal with the impact bushing and to control flow of a fluid through the fluid conduit via relative displacement of the sealing assembly from the impact bushing. Systems and methods related to such a valve assembly are also disclosed. Data supplied from the esp@cenet database-Worldwide.
摘要翻译：提供了一种新颖的阀组件。在一个实施例中，阀组件包括座板，其包括流体导管和冲击衬套，所述冲击衬套在与流体导管相邻的位置处联接到座板。阀组件还包括密封组件，其被构造成与冲击衬套形成密封，并且通过密封组件与冲击衬套的相对移位来控制流体通过流体导管的流动。还公开了与这种阀组件有关的系统和方法。从esp @ cenet database-Worldwide提供的数据。

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