Patents by Inventor Yiqiao Tang

Yiqiao Tang 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).

  • Publication number: 20220178253
    Abstract: An NMR sensor is configured to make NMR measurements of a fluid and includes a housing defining a chamber. A nonmagnetic cap is deployed in the chamber and divides the chamber into first and second regions. The cap is sized and shaped to define a fluid collector in the first region. A magnet assembly is deployed in the second region and is configured to generate a static magnetic field in the fluid collector. A radio frequency (RF) coil is interposed between the magnet assembly and the cap and is configured to generate an RF magnetic field in the fluid collector. Methods include using the sensor to make NMR measurements of multi-phase fluids such as drilling fluid.
    Type: Application
    Filed: December 8, 2020
    Publication date: June 9, 2022
    Inventors: Reda Karoum, Yiqiao Tang, Shin Utsuzawa
  • Patent number: 11340377
    Abstract: A method for evaluating drilling fluid includes making an NMR measurement of a sample of the drilling fluid and inverting the measurements to compute a corresponding T1T2 plot. The T1T2 plot is in turn evaluated to characterize the drilling fluid. In one embodiment, a stability index of the fluid may be computed from multiple NMR measurements made while aging the sample.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: May 24, 2022
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Yiqiao Tang, Reda Karoum, Yi-Qiao Song, Shin Utsuzawa, Stephen Cliffe
  • Publication number: 20220120931
    Abstract: An NMR well logging tool is provided that includes a sensor and associated electronic circuitry. The sensor includes an array of RF antenna elements. The electronic circuitry includes at least one low-power integrated circuit and a plurality of high-power modules corresponding the RF antenna elements of the array. Each high-power module is coupled to a corresponding RF antenna element of the array and includes an RF amplifier that is configured to amplify RF pulses generated by the at least one low-power integrated circuit and supplied thereto for transmission by the corresponding antenna element. In embodiments, the RF amplifier of each high-power module can include an H-bridge circuit or other suitable RF amplifier.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 21, 2022
    Inventors: Yi-Qiao Song, Yiqiao Tang, Shin Utsuzawa, Tancredi Botto, Irfan Bulu, Martin Hurlimann
  • Publication number: 20220050223
    Abstract: A method for evaluating drilling fluid includes making an NMR measurement of a sample of the drilling fluid and inverting the measurements to compute a corresponding T1T2 plot. The T1T2 plot is in turn evaluated to characterize the drilling fluid. In one embodiment, a stability index of the fluid may be computed from multiple NMR measurements made while aging the sample.
    Type: Application
    Filed: August 17, 2020
    Publication date: February 17, 2022
    Inventors: Yiqiao Tang, Reda Karoum, Yi-Qiao Song, Shin Utsuzawa, Stephen Cliffe
  • Publication number: 20220035065
    Abstract: A method can include performing an operation using a system where the operation depends on a decision made via a digital decision model stored in memory of the system; responsive to a decision state of the digital decision model, transmitting a request to update the digital decision model; and responsive to the request, receiving an updated digital decision model, where the updated digital decision model includes at least one new decision state that improves performance of the operation of the system.
    Type: Application
    Filed: September 27, 2019
    Publication date: February 3, 2022
    Inventors: Yiqiao Tang, Yi-Qiao Song, Martin Hurlimann, Yanxian Lin
  • Patent number: 11073633
    Abstract: An NMR system includes a radio frequency (RF) NMR application-specific integrated circuit (ASIC) chip configured to generate an RF output signal and a rectifier configured to receive the RF output signal and convert the RF output signal to (a) a direct current (DC) pulsed field gradient (PFG) signal or (b) a DC trigger signal for at least one of (i) activating at least one component of an NMR system external to the NMR RF ASIC chip and (ii) synchronizing at least one component of an NMR system external to the NMR RF ASIC chip.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: July 27, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Yi-Qiao Song, Soumyajit Mandal, Yiqiao Tang, David McCowan
  • Publication number: 20210199838
    Abstract: A method can include accessing a measurement model in memory of a downhole tool; determining an optimal parameter set using a processor of the downhole tool and the measurement model; and performing at least one measurement using at least one sensor of the downhole tool operated according to the optimal parameter set.
    Type: Application
    Filed: May 15, 2019
    Publication date: July 1, 2021
    Inventors: Yiqiao Tang, Yi-Qiao Song, Nicholas Heaton, Martin Hurlimann, Scott DiPasquale, Diogenes Molina, Albina Rishatovna Mutina
  • Publication number: 20210041414
    Abstract: Nuclear magnetic resonance (NMR) relaxation and/or diffusion measurements are used to deduce fluid compositional information such as a chain-length distribution, which may then be used to predict the true boiling points (TBP) of a sample of a complex hydrocarbon fluid mixture, such as a crude oil. The NMR measurements may be considered a fast and portable proxy measurement in estimating fluid TBP distributions in lieu of distillation methods, or the simulated distillation by gas chromatography.
    Type: Application
    Filed: March 5, 2019
    Publication date: February 11, 2021
    Inventors: Yiqiao TANG, Yi-Qiao SONG, Sharath Chandra MAHAVADI, Ravinath Kausik KADAYAM VISWANATHAN, Shawn David TAYLOR, Gary POTTEN
  • Publication number: 20200340971
    Abstract: Systems and methods for monitoring a crude oil blending process use nuclear magnetic resonance (NMR) sensors which investigate properties of a plurality of crude oil streams that are mixed together to form a crude oil blend. An NMR sensor is also used to investigate the properties of the crude oil blend. The investigated properties may include viscosity. Resulting determinations may be used to control the input streams so that the output stream meets desired criteria. Additional sensors such as spectroscopy sensors, viscometers, and densitometers may be used in conjunction with the NMR sensors.
    Type: Application
    Filed: December 10, 2018
    Publication date: October 29, 2020
    Inventors: Sharath Chandra Mahavadi, Ravinath Kausik Kadayam Viswanathan, Kamilla Fellah, Simon Ivar Andersen, Yiqiao Tang, Yi-Qiao Song, Shawn David Taylor, Gary Potten
  • Publication number: 20200301039
    Abstract: Small-sized flowlines are provided for use in NMR apparatus. The small-sized flowlines can have a channel with an inner diameter or maximum width of less than 0.2 inch and can be made of sapphire, yttria-stabilized zirconia (YSZ), or extruded polyether ether ketone (PEEK), which are useful in high temperature, high pressure environments such as downhole in a geological formation.
    Type: Application
    Filed: March 20, 2020
    Publication date: September 24, 2020
    Applicant: Schlumberger Technology Corporation
    Inventors: Yiqiao Tang, Yi-Qiao Song, Martin Hurlimann, Christopher Harrison, Marcus Hofheins Donaldson, Mark Flaum
  • Patent number: 10386530
    Abstract: A coaxial nuclear magnetic resonance (NMR) probe and related methods are described herein. The coaxial NMR probe includes a housing with a fluid inlet, a fluid outlet, a longitudinal axis, and an interior volume. The housing contains a fluid sample that is analyzed by the probe. The coaxial NMR probe also includes an elongated conductor disposed along the longitudinal axis of the housing. The elongated conductor generates an oscillating electromagnetic field within the interior volume of the housing. The oscillating electromagnetic field produces a NMR signal within the fluid sample. The elongated conductor may also be used to receive this NMR signal. The NMR signal is then analyzed to determine information about the fluid sample. Various NMR pulse sequences for use with this coaxial probe and other coaxial probes are also described herein.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: August 20, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Yi-Qiao Song, Soumyajit Mandal, Yiqiao Tang, Martin D. Hurlimann, Jeffrey Paulsen
  • Publication number: 20190244737
    Abstract: Magnet design is provided. A method customizes a magnetic field uniformity of a magnet by introducing one or more gaps between pieces of the magnet assembly.
    Type: Application
    Filed: October 5, 2017
    Publication date: August 8, 2019
    Inventors: Yiqiao Tang, Irfan Bulu, Yi-Qiao Song, Mark Flaum, Tancredi Botto, Shin Utsuzawa
  • Publication number: 20170248732
    Abstract: An NMR system includes a radio frequency (RF) NMR application-specific integrated circuit (ASIC) chip configured to generate an RF output signal and a rectifier configured to receive the RF output signal and convert the RF output signal to (a) a direct current (DC) pulsed field gradient (PFG) signal or (b) a DC trigger signal for at least one of (i) activating at least one component of an NMR system external to the NMR RF ASIC chip and (ii) synchronizing at least one component of an NMR system external to the NMR RF ASIC chip.
    Type: Application
    Filed: August 27, 2015
    Publication date: August 31, 2017
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Yi-Qiao Song, Soumyajit Mandal, Yiqiao Tang, David McCowan
  • Publication number: 20150253454
    Abstract: A coaxial nuclear magnetic resonance (NMR) probe and related methods are described herein. The coaxial NMR probe includes a housing with a fluid inlet, a fluid outlet, a longitudinal axis, and an interior volume. The housing contains a fluid sample that is analyzed by the probe. The coaxial NMR probe also includes an elongated conductor disposed along the longitudinal axis of the housing. The elongated conductor generates an oscillating electromagnetic field within the interior volume of the housing. The oscillating electromagnetic field produces a NMR signal within the fluid sample. The elongated conductor may also be used to receive this NMR signal. The NMR signal is then analyzed to determine information about the fluid sample. Various NMR pulse sequences for use with this coaxial probe and other coaxial probes are also described herein.
    Type: Application
    Filed: September 27, 2013
    Publication date: September 10, 2015
    Inventors: Yi-Qiao Song, Soumyajit Mandal, Yiqiao Tang, Martin D. Hurlimann, Jeffrey Paulsen