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公开(公告)号：US11732580B2
公开(公告)日：2023-08-22
申请号：US17114575
申请日：2020-12-08
Applicant: Schlumberger Technology Corporation
Inventor： Reda Karoum , Yiqiao Tang , Shin Utsuzawa
CPC classification number: E21B49/0875 , E21B49/086 , G01N24/08 , G01N33/2823
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.
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公开(公告)号：US20220035065A1
公开(公告)日：2022-02-03
申请号：US17279617
申请日：2019-09-27
Applicant: Schlumberger Technology Corporation
Inventor： Yiqiao Tang , Yi-Qiao Song , Martin Hurlimann , Yanxian Lin
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.
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公开(公告)号：US11073633B2
公开(公告)日：2021-07-27
申请号：US15506759
申请日：2015-08-27
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Yi-Qiao Song , Soumyajit Mandal , Yiqiao Tang , David McCowan
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.
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公开(公告)号：US20190244737A1
公开(公告)日：2019-08-08
申请号：US16339862
申请日：2017-10-05
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Yiqiao Tang , Irfan Bulu , Yi-Qiao Song , Mark Flaum , Tancredi Botto , Shin Utsuzawa
IPC: H01F7/02
CPC classification number: H01F7/021 , H01F7/0278
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.
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公开(公告)号：US12253646B2
公开(公告)日：2025-03-18
申请号：US17754627
申请日：2020-10-08
Applicant: Schlumberger Technology Corporation
Inventor： Yi-Qiao Song , Yiqiao Tang , Mehdi Hizem , Lukasz Zielinski , Michel Claverie , Zhanguo Shi
Abstract: Methods and systems are provided for optimizing well-logging using an optimized wait time determined by analysis nuclear magnetic resonance data to achieve faster and better quality borehole evaluation. The method comprises performing a nuclear magnetic resonance pre-log testing; identifying a wait time for a portion of a signal from the pre-log testing with a long T1 and T2, value at each depth of the pre-log testing, wherein T1 is defined as a longitudinal relaxation time and T2 is a transverse relaxation time ascertained from the nuclear magnetic resonance prelog testing; and constructing a logging program with a logging program wait time being consistent with the wait time identified.
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Patent Agency Ranking
公开(公告)号：US11828900B2
公开(公告)日：2023-11-28
申请号：US17279617
申请日：2019-09-27
Applicant: Schlumberger Technology Corporation
Inventor： Yiqiao Tang , Yi-Qiao Song , Martin Hurlimann , Yanxian Lin
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.
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公开(公告)号：US11543556B2
公开(公告)日：2023-01-03
申请号：US16995325
申请日：2020-08-17
Applicant: Schlumberger Technology Corporation
Inventor： Yiqiao Tang , Reda Karoum , Yi-Qiao Song , Shin Utsuzawa , Stephen Cliffe
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.
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公开(公告)号：US11501901B2
公开(公告)日：2022-11-15
申请号：US16339862
申请日：2017-10-05
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Yiqiao Tang , Irfan Bulu , Yi-Qiao Song , Mark Flaum , Tancredi Botto , Shin Utsuzawa
IPC: H01F7/02
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.
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19.发明申请公开(公告)号：US20200340971A1
公开(公告)日：2020-10-29
申请号：US16954512
申请日：2018-12-10
Applicant: Schlumberger Technology Corporation
Inventor： Sharath Chandra Mahavadi , Ravinath Kausik Kadayam Viswanathan , Kamilla Fellah , Simon Ivar Andersen , Yiqiao Tang , Yi-Qiao Song , Shawn David Taylor , Gary Potten
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.
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公开(公告)号：US20200301039A1
公开(公告)日：2020-09-24
申请号：US16825736
申请日：2020-03-20
Applicant: Schlumberger Technology Corporation
Inventor： Yiqiao Tang , Yi-Qiao Song , Martin Hurlimann , Christopher Harrison , Marcus Hofheins Donaldson , Mark Flaum
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.
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