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11. 发明授权

US11359485B2 Full digital device of receiving transducer array of acoustic logging while drilling instrument 有权
公开(公告)号：US11359485B2
公开(公告)日：2022-06-14
申请号：US17222993
申请日：2021-04-05
申请人： Institute of Geology and Geophysics, Chinese Academy of Sciences
发明人： Yuntao Sun , Wenxuan Chen , Qingyun Di , Jian Zheng , Wenxiu Zhang
IPC分类号： E21B47/14 , G01V1/52
摘要： An acoustic while drilling receiving transducer array adopts a full-digital structure and a non-oil-filled rubber encapsulation arrangement mode, and the full-digital device of the acoustic while drilling receiving transducer array includes first modules, configured to carry out acoustic-to-electric conversion on weakly received acoustic signals of strata; second modules, configured to carry out amplification, filtering, gain control and digital-to-analog conversion on the weakly received acoustic signals; and a third module, configured to control interfaces of the device and convert external input and output signals.

12. 发明授权

US11333590B1 Experimental system for simulating creep and stick-slip dislocations of fault in tunnel structure 有权
公开(公告)号：US11333590B1
公开(公告)日：2022-05-17
申请号：US17588216
申请日：2022-01-29
申请人： INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
发明人： Guangming Luo , Shengwen Qi , Bowen Zheng , Yu Zou , Manchao He , Hui Zhou , Xiaolin Huang , Songfeng Guo , Ning Liang
IPC分类号： G01N3/00 , G01N3/08 , G01N33/24 , G09B23/40
摘要： An experimental system for simulating creep and stick-slip dislocations of a fault in a tunnel structure includes a box structure, a supporting device and a fault dislocation loading system. A friction effect layer, a first surrounding rock layer, a tunnel structure model, a second surrounding rock layer and an overburden pressure layer are sequentially arranged in the box structure from bottom to top. The bottom of the box structure is provided with a through hole. A plate assembly is provided on the through hole, and includes a first guide plate, a second guide plate and a loading plate. Inner sides of the first guide plate and the second guide plate are respectively provided with a first slide rail and a second slide rail. The loading plate moves along the first slide rail and the second slide rail under the action of the fault dislocation loading system.

13. 发明授权

US11327193B2 Method and device for imaging diffracted waves based on azimuth-dip angle gathers, and storage medium 有权
$Method and device for imaging diffracted waves based on azimuth-dip angle gathers, and storage medium$
公开(公告)号：US11327193B2
公开(公告)日：2022-05-10
申请号：US17378981
申请日：2021-07-19
申请人： Institute of Geology and Geophysics, Chinese Academy of Sciences
发明人： Linong Liu , Zhengwei Li , Baokun Lu , Jiangjie Zhang , Jianfeng Zhang
IPC分类号： G01V1/32 , G01V1/30 , G01V1/00
摘要： The present disclosure provides a method and a device for imaging diffracted waves based on azimuth-dip angle gathers and a storage medium, which relates to the technical field of seismic exploration, comprising firstly acquiring seismic data and generating target azimuth-dip angle gathers based on the seismic data, wherein the target azimuth-dip angle gathers are a set of all azimuth-dip angle gathers in which the Fresnel zones have been muted, and each of the azimuth-dip angle gathers represents a dip-angle gather corresponding to each azimuth angle; then detecting diffracted waves based on the target azimuth-dip angle gathers, and determining the type of the diffracted waves; and finally, imaging the diffracted waves based on the type of the diffracted waves to obtain a diffracted wave imaging result.

14. 发明申请

US20220113442A1 MULTI-MODE DISPERSION ENERGY IMAGING DEVICE AND METHOD FOR A FOUR-COMPONENT MARINE INTERFACE WAVE OF AN OCEAN BOTTOM SEISMOMETER 有权
公开(公告)号：US20220113442A1
公开(公告)日：2022-04-14
申请号：US17138940
申请日：2020-12-31
申请人： Institute of Geology and Geophysics, Chinese Academy of Sciences
发明人： Yuan WANG , Qingyu YOU , Tianyao HAO , Yaoxing HU , Chunlei ZHAO , Yan ZHANG , Xiqiang XU
IPC分类号： G01V1/38 , G01V1/16
摘要： The present invention provides a multi-mode dispersion energy imaging device and method for a four-component marine interface wave of an ocean bottom seismometer, belonging to the technical field of marine seismic exploration. The method includes the following steps: designing an marine interface wave artificial seismic observation system, designing a reasonable observation system according to the geological condition of the operation area to ensure the resolution of the imaging to perform the marine artificial source seismic operation; carrying out the data preprocessing of the seafloor surface wave, and then carrying out the three-component seismometer Scholte wave and the acoustic guided wave dispersion energy imaging, and the one-component hydrophone acoustic guided wave dispersion energy imaging; superposing and normalizing the three-component Scholte wave dispersion energy spectrum and the one-component acoustic guided wave dispersion energy spectrum. The device is implemented based on the method above.

15. 发明授权

US11274542B2 Self-adjusting damping vibration absorber for while-drilling instruments and adjusting method thereof 有权
公开(公告)号：US11274542B2
公开(公告)日：2022-03-15
申请号：US17338427
申请日：2021-06-03
申请人： Institute of Geology and Geophysics, Chinese Academy of Sciences
发明人： Xinzhen He , Qingyun Di , Jiansheng Du
IPC分类号： E21B47/01 , E21B47/017 , E21B47/07 , F16F15/00
摘要： The present application relates to self-adjusting damping vibration absorbers, in particular to a self-adjusting damping vibration absorber for while-drilling instruments and an adjusting method thereof. The self-adjusting damping vibration absorber includes a vibration monitor and controller tool and a vibration absorber body. The vibration monitor and controller tool is mounted inside the downhole while-drilling instrument, one end of the vibration absorber body is connected to the vibration monitor and controller tool through an insulating connector, the joint is provided with an insulating pad, the other end is connected to a sensor or circuit board tool that needs vibration damping, and the inside of the vibration absorber body is provided with a damping adjustment layer made of an electroactive polymer. By controlling the magnitude of an applied voltage, the damping adjustment can be realized, and the damping adjustment layer has the characteristics of high response speed and high control precision. The self-adjusting damping vibration absorber of the present application can adjust the vibration absorber damping according to the changes of the downhole vibration and temperature, so that the vibration absorber inherent frequency avoids or is far away from the vibration frequency of the downhole while-drilling instrument so as to avoid resonance, and thereby, the vibration absorber achieves the best vibration damping effect.

16. 发明申请

US20220074915A1 DEVICE AND METHOD FOR PREPARING NATURAL GAS HYDRATE UNDER CONTROLLED TEMPERATURE AND PRESSURE 有权
公开(公告)号：US20220074915A1
公开(公告)日：2022-03-10
申请号：US17141086
申请日：2021-01-04
申请人： INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
发明人： Jianming He , Yanfang Wu , Jian Huo , Zhaobin Zhang , Shouding Li , Xiao Li
IPC分类号： G01N33/24
摘要： The present disclosure provides a device and a method for preparing natural gas hydrate under controlled temperature and pressure, which relates to the technical field of rock and soil mechanics test technology and equipment. The device includes a three-axis cylinder outer tube, a temperature adjustment system, a pressure loading system, a gas supply system and a recovery system. The three-axis cylinder outer tube is provided with an accommodating cavity throughout its middle, and the accommodating cavity is provided with an end cover of the three-axis cylinder outer tube at each end thereof. The temperature adjustment system is used to adjust the temperature of the three-axis cylinder outer tube. The pressure loading system is used to apply pressure load to the accommodating cavity. The gas supply system is used to supply a high-pressure gas into the accommodating cavity. The recovery system is used to recover the moisture and gas in the accommodating cavity.

17. 发明授权

US11187535B1 Attitude measurement method 有权
公开(公告)号：US11187535B1
公开(公告)日：2021-11-30
申请号：US17248896
申请日：2021-02-12
申请人： INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
发明人： Xu Xue
IPC分类号： E21B47/022 , G01C21/20 , G01C21/16
摘要： An attitude measurement method, which relates to the technical field of measurement while drilling in directional drilling, which can improve the observability of inertial instrument errors, suppress the repeatability errors of gyroscopes and improve the attitude measurement accuracy. The method adopts the method of fine alignment at multiple positions to carry out initial alignment; the method includes the steps of: S1, taking current attitude data and velocity data of the strapdown inertial navigation system as first initial values, and performing fine alignment at a first position; S2, changing the position of a strapdown inertial navigation system to an nth position, and performing attitude update and velocity update according to the last fine alignment result in the position changing process; and S3, taking the results of attitude update and velocity update as the nth initial values, performing the nth fine alignment at the nth position to complete the initial alignment of the strapdown inertial navigation system, thereby realizing attitude measurement. The solution of the present invention is suitable for measuring the horizontal attitude and azimuth of the whole inclined section of a horizontal well, especially the application of directional drilling gyro measurement while drilling in the attitude measurement of large inclined wells and horizontal wells.

18. 发明申请

US20210355757A1 EXECUTING MECHANISM FOR ROTARY GUIDE DEVICE AND ROTARY GUIDE DEVICE 有权
公开(公告)号：US20210355757A1
公开(公告)日：2021-11-18
申请号：US17262113
申请日：2020-07-01
申请人： INSTITUTE OF GEOLOGY AND GEOPHYSICS CHINESE ACADEMY OF SCIENCES
发明人： Qingbo LIU , Qingyun DI , Yongyou YANG , Xiangyang WANG , Qijun XIE
IPC分类号： E21B7/06 , E21B34/06
摘要： The present application provides an executing mechanism for a rotary guide device and the rotary guide device. The executing mechanism includes a driving valve core, a driven valve core, a first cavity, a second cavity and a high-pressure slurry driving channel, wherein the first cavity includes a first low-pressure port communicating with low-pressure slurry; the first cavity further includes a first high-pressure port communicating with high-pressure slurry; the driving valve core optionally opens and closes the first low-pressure port and the first high-pressure port to adjust a pressure in the first cavity; two sides of the driven valve core are respectively adjacent to the first cavity and the second cavity; the driven valve core moves in response to a pressure difference between the first cavity and the second cavity; the driven valve core is connected to the high-pressure slurry driving channel; and the high-pressure slurry driving channel switches between an open state and a close state in response to movement of the driven valve core. The executing mechanism according to the present application can effectively reduce the power consumption of a system on the basis of increasing response speed through the linkage action of the driving valve core and the driven valve core.

19. 发明申请

US20210348503A1 SELF-CALIBRATION METHOD AND SYSTEM OF SOLID-STATE RESONATOR GYROSCOPE 有权
公开(公告)号：US20210348503A1
公开(公告)日：2021-11-11
申请号：US17248897
申请日：2021-02-12
申请人： Institute of geology and geophysics, Chinese academy of sciences
发明人： Xu XUE
IPC分类号： E21B47/024 , G01C25/00 , G01C21/16 , G01C19/56 , G01H17/00 , E21B7/04
摘要： A self-calibration method and system of a solid-state resonator gyroscope, which can realize the separation of the bias error from the angular rate, and fundamentally solve the problem of repeatability errors; this calibration method acquires steady-state signals of key monitoring points in a gyroscope in different working modes in real time by externally feeding excitation signals, and realizes the separation of the bias error from the input angular rate by an algorithm, thus calibrating the repeatability error of the gyroscope. The excitation signals include first and second excitation signals; the first and second excitation signals are respectively combined with demodulated primary mode detection signal D−x and demodulated secondary mode detection signal D+y to realize feeding; the key monitoring points include output points of an antinode controller and output points of a node controller, and realize the separation of the bias error from the input angular rate according to the excitation signals and acquired signals of monitoring points. The technical solution provided can be applied to a measurement while drilling system or a navigation system.

20. 发明授权

US11047782B1 Test apparatus and method for simulating seismic dynamic response of underground cavern 有权
公开(公告)号：US11047782B1
公开(公告)日：2021-06-29
申请号：US17185972
申请日：2021-02-26
申请人： INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
发明人： Bowen Zheng , Shengwen Qi , Qian Sheng , Xiaolin Huang , Ning Liang , Songfeng Guo , Guangming Luo , Chonglang Wang , Wenjiao Xiao
IPC分类号： G01N3/04 , G01N33/24
摘要： A test apparatus for simulating a seismic dynamic response of an underground cavern includes a loading frame, an overlying model and an underlying model of the underground cavern, a static loading device, a dynamic loading device and a measuring device. A vertical load and a horizontal load are separately applied by the static loading device to the overlying model to simulate real vertical and horizontal in-situ stresses of the in-situ underground cavern. A seismic dynamic load is applied by the dynamic loading device to the underlying model, and then acts on the overlying model to simulate a real seismic ground motion on the in-situ underground cavern. In this way, the present invention satisfies simulation requirements for the seismic dynamic response of the underground cavern to implement a high-fidelity simulation on the underground cavern through unified loading of the in-situ stress static load and the seismic dynamic load.

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