Patent | Date |
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Rotary Steering Drilling Apparatus App 20220251908 - XIE; Qijun ;   et al. | 2022-08-11 |
Rotary steering drilling apparatus Grant 11,396,777 - Xie , et al. July 26, 2 | 2022-07-26 |
Earthquake evaluation method based on multi-type geophysical data Grant 11,360,225 - Di , et al. June 14, 2 | 2022-06-14 |
Push type rotary guide drilling system Grant 11,306,540 - Liu , et al. April 19, 2 | 2022-04-19 |
Executing mechanism for rotary guide device and rotary guide device Grant 11,306,539 - Liu , et al. April 19, 2 | 2022-04-19 |
Data Transmission Method And Equipment Based On Single Line App 20220075743 - WANG; Jingjing ;   et al. | 2022-03-10 |
Rotary Guiding Tool And Transmission Device App 20220049553 - LIU; Qingbo ;   et al. | 2022-02-17 |
Push Type Rotary Guide Drilling System App 20210396078 - LIU; Qingbo ;   et al. | 2021-12-23 |
Executing Mechanism For Rotary Guide Device And Rotary Guide Device App 20210355757 - LIU; Qingbo ;   et al. | 2021-11-18 |
Fluid pressure measuring device for measurement-while-drilling tool Grant 11,047,226 - Du , et al. June 29, 2 | 2021-06-29 |
Method for acquiring data of azimuthal acoustic logging while drilling Grant 11,029,434 - Di , et al. June 8, 2 | 2021-06-08 |
Rotary guiding device based on radial driving force Grant 11,021,911 - Liu , et al. June 1, 2 | 2021-06-01 |
Gravity acceleration measurement apparatus and extraction method in a rotating state Grant 11,002,128 - Zhang , et al. May 11, 2 | 2021-05-11 |
Downhole vibration and impact data recording method Grant 10,851,647 - Wang , et al. December 1, 2 | 2020-12-01 |
Hybrid rotary guiding device Grant 10,837,235 - Liu , et al. November 17, 2 | 2020-11-17 |
Constant amplitude adjusting method and system for pressure pulse of drilling tool Grant 10,830,037 - Du , et al. November 10, 2 | 2020-11-10 |
Anti-rotating device of non-rotating sleeve and a rotary guiding device Grant 10,815,730 - Liu , et al. October 27, 2 | 2020-10-27 |
An Anti-rotating Device Of Non-rotating Sleeve And A Rotary Guiding Device App 20200263500 - LIU; Qingbo ;   et al. | 2020-08-20 |
A Hybrid Rotary Guiding Device App 20200263503 - LIU; Qingbo ;   et al. | 2020-08-20 |
Dynamic testing device suitable for drilling tool attitude measurement module Grant 10,746,756 - Zhang , et al. A | 2020-08-18 |
Magnetotelluric measurement system Grant 10,746,894 - Wang , et al. A | 2020-08-18 |
Fluid Pressure Measuring Device For Measurement-while-drilling Tool App 20200208507 - DU; Jiansheng ;   et al. | 2020-07-02 |
Constant Amplitude Adjusting Method And System For Pressure Pulse Of Drilling Tool App 20200208511 - DU; Jiansheng ;   et al. | 2020-07-02 |
A Rotary Guiding Device App 20200190909 - LIU; Qingbo ;   et al. | 2020-06-18 |
Near-bit constant-power wireless short-distance transmission method and apparatus Grant 10,662,764 - Sun , et al. | 2020-05-26 |
Device for power transmission and signal transfer between stator and rotor of screw drilling tool Grant 10,619,478 - He , et al. | 2020-04-14 |
Azimuthal acoustic logging while drilling apparatus and measurement method Grant 10,612,372 - Zhang , et al. | 2020-04-07 |
A Rotary Guiding Device Based On Radial Driving Force App 20200087986 - LIU; Qingbo ;   et al. | 2020-03-19 |
Azimuthal Acoustic Logging While Drilling Apparatus And Measurement Method App 20200072044 - ZHANG; Wenxiu ;   et al. | 2020-03-05 |
Sinusoidal excitation method and apparatus for multi-pole acoustic logging while drilling Grant 10,578,754 - Sun , et al. | 2020-03-03 |
Downhole Vibration And Impact Data Recording Method App 20200018156 - WANG; Zhongxing ;   et al. | 2020-01-16 |
Device for Power Transmission and Signal Transfer Between Stator and Rotor of Screw Drilling Tool App 20200003049 - He; Xinzhen ;   et al. | 2020-01-02 |
Magnetotelluric Measurement System App 20190383960 - WANG; Zhongxing ;   et al. | 2019-12-19 |
Method, apparatus and system for arranging survey points in field operation with ground electromagnetic instrument Grant 10,488,544 - Yang , et al. Nov | 2019-11-26 |
Method and system for control and data processing in field operation with ground electromagnetic instrument Grant 10,429,539 - Wang , et al. O | 2019-10-01 |
Apparatus for downhole near-bit wireless transmission Grant 10,428,646 - Zheng , et al. October 1, 2 | 2019-10-01 |
Integral packaging device for acoustic receiving transducers while drilling Grant 10,379,238 - Zheng , et al. A | 2019-08-13 |
Azimuthally acoustic imaging logging while drilling (LWD) apparatus Grant 10,364,670 - Zheng , et al. | 2019-07-30 |
Acoustic source testing apparatus of azimuthally acoustic logging while drilling (LWD) instrument Grant 10,329,906 - Zheng , et al. | 2019-06-25 |
Near-bit dynamic well deviation angle measurement method and apparatus Grant 10,317,204 - Sun , et al. | 2019-06-11 |
Integral Packaging Device for Acoustic Receiving Transducers While Drilling App 20190154853 - ZHENG; Jian ;   et al. | 2019-05-23 |
Method and System for Control and Data Processing in Field Operation with Ground Electromagnetic Instrument App 20190129058 - WANG; Zhongxing ;   et al. | 2019-05-02 |
Sinusoidal Excitation Method And Apparatus For Multi-pole Acoustic Logging While Drilling App 20190129046 - SUN; Yuntao ;   et al. | 2019-05-02 |
Method For Acquiring Data Of Azimuthal Acoustic Logging While Drilling App 20190129052 - DI; Qingyun ;   et al. | 2019-05-02 |
Method, Apparatus and System for Arranging Survey Points in Field Operation with Ground Electromagnetic Instrument App 20190129055 - YANG; Yongyou ;   et al. | 2019-05-02 |
Dynamic Testing Device Suitable For Drilling Tool Attitude Measurement Module App 20190086439 - ZHANG; Wenxiu ;   et al. | 2019-03-21 |
Acoustic Source Testing Apparatus Of Azimuthally Acoustic Logging While Drilling (lwd) Instrument App 20190055840 - ZHENG; Jian ;   et al. | 2019-02-21 |
Near-bit tool attitude measurement while drilling apparatus and method Grant 10,202,841 - Zhang , et al. Feb | 2019-02-12 |
Distributed electromagnetic instrument synchronization system and method Grant 10,168,432 - Yang , et al. J | 2019-01-01 |
Wear-leveling nandflash memory reading/writing method Grant 10,120,795 - Yang , et al. November 6, 2 | 2018-11-06 |
Azimuthally acoustic while drilling signal receiving transducer encapsulating apparatus Grant 10,082,021 - Zheng , et al. September 25, 2 | 2018-09-25 |
Gravity Acceleration Measurement Apparatus And Extraction Method In A Rotating State App 20180223646 - ZHANG; Wenxiu ;   et al. | 2018-08-09 |
Receiving apparatus suitable for azimuthally acoustic logging while drilling Grant 10,030,504 - Zheng , et al. July 24, 2 | 2018-07-24 |
Calibration Method Under Near-bit Wireless Short-transmission Ground Envrionment Based On Electric Field Theory App 20180203157 - SUN; Yuntao ;   et al. | 2018-07-19 |
Sinusoidal Excitation Method And Apparatus For Multi-pole Acoustic Logging While Drilling App 20180202287 - SUN; Yuntao ;   et al. | 2018-07-19 |
Calibration method under near-bit wireless short-transmission ground envrionment based on electric field theory Grant 10,025,003 - Sun , et al. July 17, 2 | 2018-07-17 |
Distributed Electromagnetic Instrument Synchronization System And Method App 20180149756 - YANG; Yongyou ;   et al. | 2018-05-31 |
Receiving Apparatus Suitable For Azimuthally Acoustic Logging While Drilling App 20180142546 - ZHENG; Jian ;   et al. | 2018-05-24 |
Azimuthally Acoustic While Drilling Signal Receiving Transducer Encapsulating Apparatus App 20180142551 - ZHENG; Jian ;   et al. | 2018-05-24 |
Receiving apparatus for downhole near-bit wireless transmission Grant 9,970,288 - Zheng , et al. May 15, 2 | 2018-05-15 |
Wear-leveling Nandflash Memory Reading/writing Method App 20180081797 - YANG; Yongyou ;   et al. | 2018-03-22 |
Near-bit Constant-power Wireless Short-distance Transmission Method And Apparatus App 20180058199 - SUN; Yuntao ;   et al. | 2018-03-01 |
Near-bit Dynamic Well Deviation Angle Measurement Method And Apparatus App 20180058849 - SUN; Yuntao ;   et al. | 2018-03-01 |
Receiving Apparatus For Downhole Near-bit Wireless Transmission App 20180058200 - ZHENG; Jian ;   et al. | 2018-03-01 |
Near-bit Tool Attitude Measurement While Drilling Apparatus And Method App 20180058192 - ZHANG; Wenxiu ;   et al. | 2018-03-01 |
Apparatus For Downhole Near-bit Wireless Transmission App 20180058201 - ZHENG; Jian ;   et al. | 2018-03-01 |