Patents by Inventor Libo Yang
Libo Yang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11888375Abstract: The present disclosure provides an electrical motor configured to operate with conductive fluids internal to the motor without short-circuiting. One embodiment is a telemetry modulator that can include the electric motor and a valve coupled with the electric motor. The valve has a valve stator and a valve rotor, and the electric motor can be used to control accurately the valve opening and closing with valve rotor rotation. The valve rotor can rotate continuously or in oscillations to generate a continuous pressure wave, such as for MWD/LWD communication. The electric motor is configured to allow drilling mud to flow into the electric motor without short-circuiting by the motor stator and/or motor rotor having an electric motor winding and a termination for the winding, the winding and termination having a nonconductive coating. The electric motor can be used in other applications inside and outside the oil field environment.Type: GrantFiled: November 25, 2020Date of Patent: January 30, 2024Assignee: MS DIRECTIONAL, LLCInventors: Libo Yang, Akshay Sagar, Peter Nicholas Wells, Scott Patrick Dyas, Haixiao Weng, Aaryan Sagar
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Publication number: 20230243241Abstract: The invention provides a generator suited for drilling equipment, such as oil and gas applications. A turbine can drive the permanent-magnet, synchronous generator. The generator uses axial flux topology for a stator and a rotor. The design permits a wide airgap between the stator and rotor, so fluid and debris from drilling operations can flow through the generator relatively unobstructed, and the fluid flow can provide a power source to rotate the turbine coupled to the rotor to generate electrical power. The airgap can accommodate non-magnetic sealing plates to provide additional protection to the generator components. The rotor includes a Halbach magnet array of permanent magnets, producing high-intensity magnetic flux in an axial direction. The Halbach magnet array avoids any necessity for the conventional rotor back-iron to return the flux. The proposed generator is intended to generate electric power for drilling equipment, permitting the elimination of costly batteries.Type: ApplicationFiled: February 2, 2023Publication date: August 3, 2023Applicant: MS Directional, LLCInventors: Arnold FENOCCHI, Nobuyoshi NIINA, Libo YANG
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Publication number: 20230193747Abstract: The present disclosure provides a method and system for supplemental processing of recorded historical data in real time to fill in gaps of lost data. A user who may be monitoring the data from human interfaces can immediately recognize an issue, quickly change one or more settings for parameters (including changing one or more of the parameters), and replay for reprocessing the recorded data to provide a revised output that can catch up to the processing of later current data without needing to halt operations. In at least one field of use, the invention can eliminate the need for restarting a complete drilling process to resynchronize the surface system when the system is not able to demodulate a valid bitstream, saving time and maintaining high drilling efficiency.Type: ApplicationFiled: June 24, 2022Publication date: June 22, 2023Applicant: MS Directional, LLCInventors: Eitan BONDEROVER, Libo YANG, Charles W. DAVIS, JR., Shyam B. MEHTA
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Patent number: 11664817Abstract: The disclosure provides a method and system to recover some or all of the data missing in types of gaps that occur in data streams received via telemetry. The gaps can be filled in real time to enhance operator understanding of current operations. For gaps created by special sequences sent via telemetry during a time interval that telemetry would be sending measurement blocks (MB) of data, the gaps can be filled using special MBs combined with MBs for a next time interval to create combined MBs, sent via telemetry, and extracted to backfill the gaps. For gaps caused by corrupted data, the gaps can be filled with data from overlapping MBs having overlapping data based on overlapping time intervals. For gaps caused by gap events, including different drilling rates of penetration, event MBs with sampling rates different than a predetermined sampling rate can be sent via telemetry.Type: GrantFiled: September 17, 2021Date of Patent: May 30, 2023Assignee: MS Directional, LLCInventors: Eitan Bonderover, Shyam Mehta, Libo Yang
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Publication number: 20230087069Abstract: The disclosure provides a method and system to recover some or all of the data missing in types of gaps that occur in data streams received via telemetry. The gaps can be filled in real time to enhance operator understanding of current operations. For gaps created by special sequences sent via telemetry during a time interval that telemetry would be sending measurement blocks (MB) of data, the gaps can be filled using special MBs combined with MBs for a next time interval to create combined MBs, sent via telemetry, and extracted to backfill the gaps. For gaps caused by corrupted data, the gaps can be filled with data from overlapping MBs having overlapping data based on overlapping time intervals. For gaps caused by gap events, including different drilling rates of penetration, event MBs with sampling rates different than a predetermined sampling rate can be sent via telemetry.Type: ApplicationFiled: September 17, 2021Publication date: March 23, 2023Applicant: MS Directional, LLCInventors: Eitan BONDEROVER, Shyam MEHTA, Libo YANG
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Patent number: 11428262Abstract: The present disclosure provides a bearing design that accommodates misalignment of a rotatable shaft in the bearing and is well suited to usage in a particulate-laden fluid. The bearing can be shaped with a curved surface along a longitudinal axis of the bearing, such as in a curved barrel shape or a ball shape, to provide a point contact instead of a line contact as is the case with conventional plain bearings. The point contact allows the bearing to adjust with a misalignment between ends of the shaft or between the external supports and facilitates the assembly and disassembly of the rotating shaft. Because the bearing compensates for misalignment, the bearing surfaces can have closer tolerances for a smaller gap between the bearing surfaces, which can result in improved performance.Type: GrantFiled: March 12, 2021Date of Patent: August 30, 2022Assignee: MS Directional, LLCInventors: Nobuyoshi Niina, Libo Yang, Peter Nicholas Wells
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Publication number: 20210285489Abstract: The present disclosure provides a bearing design that accommodates misalignment of a rotatable shaft in the bearing and is well suited to usage in a particulate-laden fluid. The bearing can be shaped with a curved surface along a longitudinal axis of the bearing, such as in a curved barrel shape or a ball shape, to provide a point contact instead of a line contact as is the case with conventional plain bearings. The point contact allows the bearing to adjust with a misalignment between ends of the shaft or between the external supports and facilitates the assembly and disassembly of the rotating shaft. Because the bearing compensates for misalignment, the bearing surfaces can have closer tolerances for a smaller gap between the bearing surfaces, which can result in improved performance.Type: ApplicationFiled: March 12, 2021Publication date: September 16, 2021Applicant: MS Directional, LLCInventors: Nobuyoshi NIINA, Libo YANG, Peter Nicholas WELLS
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Publication number: 20210175769Abstract: The present disclosure provides an electrical motor configured to operate with conductive fluids internal to the motor without short-circuiting. One embodiment is a telemetry modulator that can include the electric motor and a valve coupled with the electric motor. The valve has a valve stator and a valve rotor, and the electric motor can be used to control accurately the valve opening and closing with valve rotor rotation. The valve rotor can rotate continuously or in oscillations to generate a continuous pressure wave, such as for MWD/LWD communication. The electric motor is configured to allow drilling mud to flow into the electric motor without short-circuiting by the motor stator and/or motor rotor having an electric motor winding and a termination for the winding, the winding and termination having a nonconductive coating. The electric motor can be used in other applications inside and outside the oil field environment.Type: ApplicationFiled: November 25, 2020Publication date: June 10, 2021Applicant: MS Directional, LLCInventors: Libo YANG, Akshay SAGAR, Peter Nicholas WELLS, Scott Patrick DYAS, Haixiao WENG, Aaryan SAGAR
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Patent number: 10845501Abstract: The present disclosure describes a downhole tool including an electrically operated radiation generator that selectively output radiation to a surrounding environment based at least in part on supply of electrical power; and a control system that determines likelihood of exposing living beings in the surrounding environment to output radiation by determining whether one or more check conditions is met; determine that each of the one or more check conditions is met before instructing the electrically operated radiation generator to output radiation; and instruct the electrically operated radiation generator to cease output of radiation when at least one of the one or more check conditions is no longer met.Type: GrantFiled: November 8, 2016Date of Patent: November 24, 2020Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Christian Stoller, Matthieu Simon, David Alan Rose, Libo Yang, Onur Ozen, Sicco Beekman
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Patent number: 10463676Abstract: The present invention relates to methods for weight management that utilize modified-release dosage forms comprising (R)-8-chloro-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine salts and crystalline forms thereof. The present invention further relates to (R)-8-chloro-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine salts, crystalline forms thereof and modified-release dosage forms comprising them.Type: GrantFiled: January 7, 2019Date of Patent: November 5, 2019Assignee: Arena Pharmaceuticals, Inc.Inventors: Zezhi Jesse Shao, Anthony C. Blackburn, Andrew J. Grottick, Michael E. Morgan, Jaimie Karyn Rueter, Anna Shifrina, Scott Stirn, Libo Yang, Woo Hyun Yoon
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Publication number: 20190275055Abstract: The present invention relates to methods for weight management that utilize modified-release dosage forms comprising (R)-8-chloro-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine salts and crystalline forms thereof. The present invention further relates to (R)-8-chloro-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine salts, crystalline forms thereof and modified-release dosage forms comprising them.Type: ApplicationFiled: January 7, 2019Publication date: September 12, 2019Inventors: Zezhi Jesse Shao, Anthony C. Blackburn, Andrew J. Grottick, Michael E. Morgan, Jaimie Karyn Rueter, Anna Shifrina, Scott Stirn, Libo Yang, Woo Hyun Yoon
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Patent number: 10226471Abstract: The present invention relates to methods for weight management that utilize modified-release dosage forms comprising (R)-8-chloro-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine salts and crystalline forms thereof. The present invention further relates to (R)-8-chloro-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine salts, crystalline forms thereof and modified-release dosage forms comprising them.Type: GrantFiled: February 10, 2017Date of Patent: March 12, 2019Assignee: Arena Pharmaceuticals, Inc.Inventors: Zezhi Jesse Shao, Anthony C. Blackburn, Andrew J. Grottick, Michael E. Morgan, Jaimie Karyn Rueter, Anna Shifrina, Scott Stirn, Libo Yang, Woo Hyun Yoon
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Publication number: 20170246179Abstract: The present invention relates to methods for weight management that utilize modified-release dosage forms comprising (R)-8-chloro-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine salts and crystalline forms thereof. The present invention further relates to (R)-8-chloro-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine salts, crystalline forms thereof and modified-release dosage forms comprising them.Type: ApplicationFiled: February 10, 2017Publication date: August 31, 2017Inventors: Zezhi Jesse Shao, Anthony C. Blackburn, Andrew J. Grottick, Michael E. Morgan, Jaimie Karyn Rueter, Anna Shifrina, Scott Stirn, Libo Yang, Woo Hyun Yoon
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Publication number: 20170139074Abstract: The present disclosure describes a downhole tool including an electrically operated radiation generator that selectively output radiation to a surrounding environment based at least in part on supply of electrical power; and a control system that determines likelihood of exposing living beings in the surrounding environment to output radiation by determining whether one or more check conditions is met; determine that each of the one or more check conditions is met before instructing the electrically operated radiation generator to output radiation; and instruct the electrically operated radiation generator to cease output of radiation when at least one of the one or more check conditions is no longer met.Type: ApplicationFiled: November 8, 2016Publication date: May 18, 2017Inventors: Christian Stoller, Matthieu Simon, David Alan Rose, Libo Yang, Onur Ozen, Sicco Beekman
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Patent number: 9438902Abstract: A method for decoding includes: determining an expected power according to the current remaining power and an expected decoding time length, determining a first average power according to the accumulated decoding time length and the accumulated power consumption of the decoder from the moment it starts to work until the current moment; determining a second average power according to the accumulated decoding time length and the accumulated power consumption in the process of decoding the latest preset number of image groups; when the absolute value of the difference between the expected power and the second average power exceeds a preset threshold and the expected power is not equal to the first average power, determining the operation mode of the decoder according to the size relationship between the expected power and the first average power and decoding a data frame according to the determined operation mode.Type: GrantFiled: December 26, 2011Date of Patent: September 6, 2016Assignee: CHINA MOBILE COMMUNICATIONS CORPORATIONInventors: Meng Guo, Libo Yang, Jian Zhang
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Publication number: 20160178780Abstract: Systems and methods for antenna transmitter health determinations and borehole compensation for an electromagnetic measurement tools are provided. The input current to an antenna transmitter of an electromagnetic measurement tool may be measured using a current measurement circuit. An output voltage proportional to the input current may be provided and compared to a threshold to determine the health of the antenna transmitter. A replacement borehole compensation matrix for calculating a combined attenuation measurement may be selected based on an identified unhealthy antenna transmitter.Type: ApplicationFiled: December 2, 2015Publication date: June 23, 2016Inventors: Joshua W. Gibson, Libo Yang, Gary A. Hazen, Mark A. Fredette, Fernando Garcia-Osuna
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Patent number: 9182747Abstract: The present disclosure relates to a method to determine the phase of a signal when transmitter and receiver circuits use separate clocks. A discrepancy between the separate clocks is determined, as is a correction factor between the separate clocks. The phase is determined using a measured time of arrival of the signal, the determined discrepancy, and the determined correction factor. A drift factor and an expected start time of a pulse sequence may be used to determine the discrepancy. A start time of a pulse within the pulse sequence is determined and used to determine the correction factor. The method works by either absolute synchronization of the separate clocks, or by making the measurements independent of clock synchronization.Type: GrantFiled: June 15, 2012Date of Patent: November 10, 2015Assignee: Schlumberger Technology CorporationInventors: Jean Seydoux, Libo Yang, Mark Kuchenbecker, Reza Taherian, Emmanuel Legendre, Jian Yang, Mark A. Fredette
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Patent number: 9091153Abstract: Systems, methods, and devices for two-way communication with a downhole tool string are provided. In one example, a method may include placing a downhole tool string into a pressure riser of a well while at least one component of the downhole tool string is not activated. Thereafter, a wireless control signal may be issued through the pressure riser to the downhole tool to cause the downhole tool string to activate the component. The wireless control signal may involve an acoustic signal, an optical signal, and/or an electromagnetic signal such as electrical dipole coupling or magnetic dipole coupling.Type: GrantFiled: June 19, 2012Date of Patent: July 28, 2015Assignee: Schlumberger Technology CorporationInventors: Libo Yang, Reza Taherian, Dean M. Homan, Paul Wanjau, David Rose, Onur Ozen
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Publication number: 20130315994Abstract: The present invention relates to methods for weight management that utilize modified-release dosage forms comprising (R)-8-chloro-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine salts and crystalline forms thereof. The present invention further relates to (R)-8-chloro-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine salts, crystalline forms thereof and modified-release dosage forms comprising them.Type: ApplicationFiled: August 31, 2011Publication date: November 28, 2013Inventors: Zezhi Jesse Shao, Anthony C. Blackburn, Andrew J. Grottick, Michael Morgan, Jaimie Karyn Rueter, Anna Shifrina, Scott Stirn, Libo Yang, Woo Hyun Yoon
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Publication number: 20130287095Abstract: Disclosed are a method, a device and a terminal for decoding, the method including: determining an expected power of the decoder according to the current remaining power and an expected decoding time length, determining a first average power of the decoder according to the accumulated decoding time length and the accumulated power consumption of the decoder from the moment it starts to work until the current moment; determining a second average power of the decoder according to the accumulated decoding time length and the accumulated power consumption in the process of decoding the latest preset number of image groups by the decoder; when the absolute value of the difference between the expected power and the second average power exceeds a preset threshold and the expected power is not equal to the first average power, determining the operation mode of the decoder according to the size relationship between the expected power and the first average power and decoding a data frame according to the determined opeType: ApplicationFiled: December 26, 2011Publication date: October 31, 2013Applicant: CHINA MOBILE COMMUNICATIONS CORPORATIONInventors: Meng Guo, Libo Yang, Jian Zhang