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公开(公告)号：US11685269B2
公开(公告)日：2023-06-27
申请号：US17046574
申请日：2019-04-17
IPC分类号： B60L53/124 , H02J50/10 , G01V3/10 , B60K6/28
CPC分类号： B60L53/124 , G01V3/101 , H02J50/10 , B60K6/28 , B60Y2200/91 , B60Y2200/92 , B60Y2300/91
摘要： A detection device includes a detection mat having a plurality of detection coils, and at least one pair of groups of detection coils, the pair of groups of detection coils includes first and second groups of detection coils. The first and second group of detection coils comprises first and second first and second impedance values. The detection device includes one or more drive sub-systems and a comparison sub-system. The drive sub-systems are operatively coupled to the detection mat and configured to excite at least one pair of groups of detection coils. The comparison sub-system is operatively coupled to the detection mat and configured to receive a differential current signal from the pair of groups of detection coils, the comparison subsystem is configured to generate a control signal based on the differential current signal.
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公开(公告)号：US11675099B2
公开(公告)日：2023-06-13
申请号：US16649802
申请日：2019-05-23
摘要： Embodiments disclosed herein include components, devices, systems, and operations and functions for generating a seismic profile. An optical signal is generated in an optical signal medium disposed in proximity to a formation. A seismic source induces seismic signals within the formation. A backscatter response corresponding to the seismic signals from the optical signal medium is detected and quadrature modulated to generate a quadrature trace. A seismic response is generated by determining phase differences in the backscatter response based on the quadrature modulated backscatter response. Portions of the seismic response above or below a response threshold are removed to generate a threshold seismic response. The threshold seismic response is correlated with at least one of the seismic signals to generate a correlated seismic response.
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83.发明授权公开(公告)号：US11668168B2
公开(公告)日：2023-06-06
申请号：US17459581
申请日：2021-08-27
发明人： Sergei Parsegov , Stanley Vernon Stephenson , Tirumani Swaminathan , Daniel Joshua Stark , Baidurja Ray
IPC分类号： E21B43/26 , E21B47/18 , E21B47/095 , E21B47/06 , E21B43/14
CPC分类号： E21B43/14 , E21B43/26 , E21B47/06 , E21B47/095 , E21B47/18
摘要： A system is provided including at least one pump for pumping a fluid into a wellbore, a pressure sensor provided at a wellhead of the wellbore for measuring a backpressure of the fluid being pumped into the wellbore, and a diagnostic manager. The diagnostic manager obtains pressure data associated with a pressure signal from the pressure sensor, wherein the pressure data includes pressure measurements of the fluid over a selected time period. The diagnostic manager converts, based on the pressure data, at least a portion of the pressure signal into frequency domain. The diagnostic manager detects a change in frequency of the pressure signal in the Fourier spectrum and determines that a fault associated with the wellbore has occurred based on the changed frequency of the pressure signal.
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公开(公告)号：US11662496B2
公开(公告)日：2023-05-30
申请号：US17327792
申请日：2021-05-24
发明人： Brenno Caetano Troca Cabella , Ruijia Wang , Chung Chang , Qingtao Sun , Yao Ge , Xiang Wu , Pablo Vieira Rego , Marco Aurelio Luzio , João Vicente Gonçalves Rocha
CPC分类号： G01V1/50 , E21B47/005 , G01N33/383 , G01V1/159 , G06F30/20 , E21B47/12 , E21B2200/20 , G01V2210/1299 , G01V2210/1429
摘要： Methods, systems, and program products are disclosed for implementing acoustic logging and determining wellbore material characteristics. In some embodiments, a method may include determining a polar differential signal for each of one or more pairs of azimuthally offset acoustic measurements within a wellbore. A reference azimuth is identified based, at least in part, on comparing the polar differential signals to a modeled bonding differential signal within a target response window. The method further includes determining differences between an acoustic measurement at the reference azimuth and acoustic measurements at one or more other azimuths and determining a wellbore material condition based, at least in part, on the determined differences.
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公开(公告)号：US11655705B2
公开(公告)日：2023-05-23
申请号：US17833503
申请日：2022-06-06
CPC分类号： E21B47/06 , E21B49/008 , E21B49/087 , E21B49/10
摘要： An apparatus includes a formation tester tool to be positioned in a borehole within a formation, wherein the formation tester tool comprises a pressure sensor and a pad that is radially extendable with respect to an axis of the formation tester tool, and wherein the pressure sensor is inside the pad. The formation tester tool includes first and second inner radially extendable packers that are axially above and below the pad, respectively, with respect to the axis of the formation tester tool. The apparatus includes a first outer radially extendable packer that is axially above the first inner radially extendable packer with respect to the axis of the formation tester tool and a second outer radially extendable packer that is axially below the second inner radially extendable packer with respect to the axis of the formation tester tool.
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公开(公告)号：US11652370B2
公开(公告)日：2023-05-16
申请号：US16841898
申请日：2020-04-07
发明人： Yong Gu Yoon , Choon Kil Jung
摘要： The present disclosure relates to a method for providing compatibility with a wireless power transmitting device in a wireless power transmitting system. The method includes the steps of: detecting a wireless power receiving device on the basis of a load change; transmitting a request signal for requesting information for a receiving device to the wireless power receiving device; receiving the information for the receiving device from the wireless power receiving device, wherein the information selectively includes version information on standard technical specifications for realizing the wireless power receiving device; and, when the version information is included in the information for the receiving device, performing a wireless power transmitting operation according to the standard technical specifications corresponding to the version information.
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公开(公告)号：US11650348B2
公开(公告)日：2023-05-16
申请号：US16860183
申请日：2020-04-28
CPC分类号： G01V8/10 , G01N21/31 , G01N2201/1296
摘要： A model can be trained for discriminant analysis for substance classification and/or measuring calibration. One method includes interacting at least one sensor with one or more known substances, each sensor element being configured to detect a characteristic of the one or more known substances, generating an sensor response from each sensor element corresponding to each known substance, wherein each known substance corresponds to a known response stored in a database, and training a neural network to provide a discriminant analysis classification model for an unknown substance, the neural network using each sensor response as inputs and one or more substance types as outputs, and the outputs corresponding to the one or more known substances.
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公开(公告)号：US11641134B2
公开(公告)日：2023-05-02
申请号：US16604481
申请日：2018-03-19
发明人： Sivabalan Mohan , Somakumar Ramachandrapanicker , Arun Kumar Raghunathan , Rajendra Naik , Adnan Kutubuddin Bohori
摘要： A wireless charging device includes a power source configured to generate a direct current (DC) voltage signal. Also, the wireless charging device includes a driver unit configured to receive the DC voltage signal and convert the DC voltage signal to a first alternating current (AC) voltage signal. Further, the wireless charging device includes a transmitting unit including a resonant capacitor and a resonant coil, coupled to the driver unit, wherein the transmitting unit is configured to receive and transmit the first AC voltage signal. Additionally, the wireless charging device includes a control unit configured to detect a receiver device based on a change in at least one of a capacitive voltage across the resonant capacitor and an inductive voltage across the resonant coil if the receiver device is positioned within a predetermined distance from the transmitting unit.
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公开(公告)号：US11629591B2
公开(公告)日：2023-04-18
申请号：US16841249
申请日：2020-04-06
摘要： A formation test probe and a formation test system and method for implementing a self-drilling probe are disclosed. In some embodiments, a test probe includes a body having a channel therethrough to a frontside port, and further includes drill-in tubing disposed within the channel and having a front tip that is extensible from the frontside port. An exciter is disposed within the body in contact with the drill-in tubing and operably configured to induce resonant vibration in the drill-in tubing during a drill-in phase of a formation test cycle.
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公开(公告)号：US11613974B2
公开(公告)日：2023-03-28
申请号：US17862608
申请日：2022-07-12
发明人： Luke Golden Janger , Ryan Bridwell Ashbaugh , David Linn Self , Wesley John Nowitzki , David C. Beck
IPC分类号： E21B43/12 , H02K11/215 , H02P6/28 , E21B47/008 , F04D25/06 , H02K5/132 , F04D13/10 , F04D15/00
摘要： A system comprises an electric submersible pump (ESP) motor electrically coupled to a variable speed drive (VSD) that outputs voltage to the ESP motor. The system comprises a magnet on a shaft of the ESP motor and a downhole sensor coupled to the magnet, wherein the downhole sensor is to measure a magnetic flux of the magnet. The system comprises a VSD controller to control the VSD, wherein the VSD controller comprises a processor and a non-transitory memory storage having instructions stored thereon that are executable by the processor to perform operations comprising: obtaining a measurement of at least one pump performance variable and a motor current for a first period of time to establish a first data set and making a first adjustment to a voltage output from the VSD to the ESP motor, the first adjustment having a first adjustment type.
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