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Leak localization using acoustic-signal correlations Grant 11,402,532 - Ang , et al. August 2, 2 | 2022-08-02 |
Acoustic array signal processing for flow detection Grant 11,208,884 - Lu , et al. December 28, 2 | 2021-12-28 |
Acoustic downhole leak classification and quantification Grant 11,053,790 - Lu , et al. July 6, 2 | 2021-07-06 |
Estimation of flow rates using acoustics in a subterranean borehole and/or formation Grant 10,900,349 - Seshadri , et al. January 26, 2 | 2021-01-26 |
Leak Localization Using Acoustic-signal Correlations App 20200309981 - Ang; Yi Yang ;   et al. | 2020-10-01 |
Systems And Methods To Utilize Sensors To Provide Spatial Resolution In Downhole Leak Detection App 20200292728 - ANG; Yi Yang ;   et al. | 2020-09-17 |
Stitching methods to enhance beamforming results Grant 10,760,410 - Nguyen , et al. Sep | 2020-09-01 |
Downhole acoustic source localization Grant 10,598,563 - Lu , et al. | 2020-03-24 |
Temperature-corrected Distributed Fiber-optic Sensing App 20200032644 - Xia; Hua ;   et al. | 2020-01-30 |
Real-time adaptive minimum phase wavelet generation for downhole tools Grant 10,502,854 - Mandal , et al. Dec | 2019-12-10 |
Control of acoustic transmitters for downhole measurement or logging Grant 10,401,521 - Lu , et al. Sep | 2019-09-03 |
Systems and methods to utilize a sensor to provide spatial resolution in downhole leak detection Grant 10,392,925 - Ang , et al. A | 2019-08-27 |
MEMS-based transducers on a downhole tool Grant 10,365,389 - Gilstrap , et al. July 30, 2 | 2019-07-30 |
Methods to image acoustic sources in wellbores Grant 10,359,525 - Jagannathan , et al. | 2019-07-23 |
System And Method For Estimation And Prediction Of Production Rate Of A Well Via Geometric Mapping Of A Perforation Zone Using A App 20190218906 - WALTERS; Darren Philip ;   et al. | 2019-07-18 |
Frequency Weighting In Broadband Acoustic Beamforming App 20180355712 - Nguyen; Nam ;   et al. | 2018-12-13 |
Account activity level based-system resource allocating method and device Grant 10,152,353 - Zhao , et al. Dec | 2018-12-11 |
Systems And Methods To Utilize A Sensor To Provide Spatial Resolution In Downhole Leak Detection App 20180283167 - ANG; Yi Yang ;   et al. | 2018-10-04 |
Stitching Methods To Enhance Beamforming Results App 20180258756 - Nguyen; Nam ;   et al. | 2018-09-13 |
Estimation Of Flow Rates Using Acoustics In A Subterranean Borehole And/or Formation App 20180230797 - SESHADRI; Muralidhar ;   et al. | 2018-08-16 |
Downhole Acoustic Source Localization App 20180217021 - Lu; Yinghui ;   et al. | 2018-08-02 |
Acoustic Downhole Leak Classification and Quantification App 20180010443 - Lu; Yinghui ;   et al. | 2018-01-11 |
System and method for predicting mechanical failure of a motor Grant 9,845,012 - Lu , et al. December 19, 2 | 2017-12-19 |
Acoustic Array Signal Processing For Flow Detection App 20170321540 - Lu; Yinghui ;   et al. | 2017-11-09 |
Mems-based Transducers On A Downhole Tool App 20170293044 - Gilstrap; Tatiana ;   et al. | 2017-10-12 |
Methods To Image Acoustic Sources In Wellbores App 20170269243 - Jagannathan; Srinivasan ;   et al. | 2017-09-21 |
Real-time Adaptive Minimum Phase Wavelet Generation For Downhole Tools App 20170205524 - MANDAL; Batakrishna ;   et al. | 2017-07-20 |
Account Activity Level Based-system Resource Allocating Method And Device App 20170153917 - ZHAO; Jinxin ;   et al. | 2017-06-01 |
Determining effective elastic modulus of a composite slickline cable Grant 9,557,212 - Xia , et al. January 31, 2 | 2017-01-31 |
Wireline cable fatigue monitoring using thermally-induced acoustic waves Grant 9,557,300 - Xia , et al. January 31, 2 | 2017-01-31 |
Determining Effective Elastic Modulus Of A Composite Slickline Cable App 20160341702 - Xia; Hua ;   et al. | 2016-11-24 |
Wireline Cable Fatigue Monitoring Using Thermally-induced Acoustic Waves App 20160327521 - XIA; HUA ;   et al. | 2016-11-10 |
Ultrasonic signal time-frequency decomposition for borehole evaluation or pipeline inspection Grant 9,322,807 - Lu , et al. April 26, 2 | 2016-04-26 |
Control of Acoustic Transmitters for Downhole Measurement or Logging App 20160033663 - Lu; Yinghui ;   et al. | 2016-02-04 |
Ultrasonic Signal Time-frequency Decomposition For Borehole Evaluation Or Pipeline Inspection App 20150338378 - Lu; Yinghui | 2015-11-26 |
Lock device for sliding door Grant 8,590,947 - Qi , et al. November 26, 2 | 2013-11-26 |
System And Method For Predicting Mechanical Failure Of A Motor App 20130013138 - Lu; Yinghui ;   et al. | 2013-01-10 |
Lock Device For Sliding Door App 20110101713 - Qi; Chao ;   et al. | 2011-05-05 |