Patents by Inventor Jiansheng DU

Jiansheng DU 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: 20240264325
    Abstract: The present application discloses a carrier wave distortion compensation method for an MWD mud continuous wave system, comprising: in the downhole, modulating the carrier wave according to the transmission data to obtain a mud continuous wave signal to be transmitted; transmitting the mud continuous wave signal to the ground via a mud channel; denoising the received pressure signal on the ground to obtain a denoised mud continuous wave signal; performing subsequent processing on the denoised mud continuous wave signal to obtain the final transmission data; and performing downhole distortion compensation before modulating the carrier wave or performing ground distortion compensation on the denoised mud continuous wave signal before performing subsequent processing. The present application reduces the bit error rate of the MWD mud continuous wave system by performing waveform distortion compensation prior to downhole modulation or during performing signal processing on the ground.
    Type: Application
    Filed: September 11, 2023
    Publication date: August 8, 2024
    Applicant: Institute of Geology and Geophysics, Chinese Academy of Sciences
    Inventors: Jing OU, Jiansheng DU, Wenxiu ZHANG, Xinzhen HE, Xiaolong LI, Yuliang WANG
  • Publication number: 20230407742
    Abstract: Disclosed is a synchronization method for an MWD mud pulse telemetry system. The method comprises: determining a synchronous training sequence on the basis of a frame structure of downhole sent data; constructing a correlation between the down-hole sending synchronous training sequence waveform and the uphole synchronous training sequence local waveform by means of the irrelevance of the trigonometric function; and performing correlation calculation on the synchronous training codeword waveform, which is received uphole and is subjected to the first modulation, and the synchronous training sequence local waveform, which is subjected to the second modulation, so as to obtain a correlation curve, and finding a synchronous position by means of the correlation curve.
    Type: Application
    Filed: December 28, 2020
    Publication date: December 21, 2023
    Applicant: Institute of Geology and Geophysics, Chinese Academy of Sciences
    Inventors: Jing Ou, Jiansheng Du, Wenxiu Zhang, Xinzhen He, Xiaolong Li, Yuliang Wang
  • Patent number: 11768139
    Abstract: The present invention relates to alternating stress fatigue testing equipment. The alternating stress fatigue testing equipment includes a pedestal on which linear guide rails are arranged; a deflection loading device which is arranged on the pedestal and configured to, in response to a clamped to-be-measured object being driven to slide to a first position, enable the to-be-measured object to be bent to a target degree and keep the to-be-measured object after the to-be-measured object is bent to the target degree, wherein the deflection loading device is rotatably connected to the to-be-measured object; two hinged shaft supports which are arranged on the linear guide rails, wherein the hinged shaft supports are symmetrically arranged about a longitudinal center line of the deflection loading device, connected to both ends of the to-be-measured object respectively, and configured to be adjusted obliquely to adapt to the bending of the to-be-measured object to the target degree.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: September 26, 2023
    Assignee: Institute of Geology and Geophysics, Chinese Academy of Sciences
    Inventors: Renzhong Pei, Zhongxing Wang, Jiansheng Du, Jian Zheng, Xinzhen He
  • Publication number: 20230020690
    Abstract: The present invention relates to alternating stress fatigue testing equipment. The alternating stress fatigue testing equipment includes a pedestal on which linear guide rails are arranged; a deflection loading device which is arranged on the pedestal and configured to, in response to a clamped to-be-measured object being driven to slide to a first position, enable the to-be-measured object to be bent to a target degree and keep the to-be-measured object after the to-be-measured object is bent to the target degree, wherein the deflection loading device is rotatably connected to the to-be-measured object; two hinged shaft supports which are arranged on the linear guide rails, wherein the hinged shaft supports are symmetrically arranged about a longitudinal center line of the deflection loading device, connected to both ends of the to-be-measured object respectively, and configured to be adjusted obliquely to adapt to the bending of the to-be-measured object to the target degree.
    Type: Application
    Filed: January 28, 2022
    Publication date: January 19, 2023
    Inventors: Renzhong PEI, Zhongxing WANG, Jiansheng DU, Jian ZHENG, Xinzhen HE
  • Patent number: 11274542
    Abstract: 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.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: March 15, 2022
    Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Xinzhen He, Qingyun Di, Jiansheng Du
  • Publication number: 20210301646
    Abstract: 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.
    Type: Application
    Filed: June 3, 2021
    Publication date: September 30, 2021
    Inventors: Xinzhen HE, Qingyun DI, Jiansheng DU
  • Patent number: 11047226
    Abstract: The disclosure relates to a fluid pressure measuring device for a measurement-while-drilling tool, which including a first sensor assembly (1), a second sensor assembly (2) and a sealing member (3), wherein a mounting groove (5) is formed on an outer side wall of a drill collar (4) of a measurement-while-drilling tool; the sealing member (3) is fixedly mounted on the mounting groove (5); a first liquid inlet hole (7) is formed in the sealing member (3); a second liquid inlet hole (9) communicated with a center flow channel (8) of the drill collar (4) is formed in the mounting groove (5); a liquid inlet end of the first sensor assembly (1) is communicated with the first liquid inlet hole (7); and a liquid inlet end of the second sensor assembly (2) is communicated with the second liquid inlet hole (9).
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: June 29, 2021
    Assignee: Institute of Geology and Geophysics, Chinese Academy of Sciences
    Inventors: Jiansheng Du, Qingyun Di, Zili Wang, Wenxuan Chen, Xinzhen He, Yongyou Yang
  • Patent number: 11021911
    Abstract: A rotary guiding device includes a rotating shaft to rotationally drive a tool head. The rotating shaft includes upper and lower shaft portions, and a steerable portion, the upper shaft portion and the lower shaft portion are steerably connected by the steerable portion. A non-rotating body is mounted on the upper shaft portion, the non-rotating body is substantially non-rotating with respect to the rotating shaft in circumferential direction when the rotating shaft rotationally drives the tool head. The lower shaft portion includes a rib portion coinciding at least partially in axial direction with the non-rotating body. The non-rotating body includes at least three hydraulic driving mechanisms uniformly distributed along its circumferential direction, the three hydraulic driving mechanisms controllably generate radial drive forces respectively, the radial driving forces act on the rib portion overlapping the non-rotating body so the lower shaft portion can be deflectable relative to the steerable portion.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: June 1, 2021
    Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Qingbo Liu, Qingyun Di, Tsili Wang, Wenxuan Chen, Jiansheng Du, Yongyou Yang, Xinzhen He, Linfeng Hong, Qijun Xie
  • Patent number: 10837235
    Abstract: A hybrid rotary guiding device, includes: rotating shaft, the rotating shaft is used to drive the head of a drill tool to rotate, the rotating shaft includes an upper shaft portion, a lower shaft portion, and a steerable portion, a separation distance exists between the upper shaft portion and the lower shaft portion in the axial direction, the upper shaft portion and the lower shaft portion are steerably connected by the steerable portion; the upper shaft portion is installed with at least three first hydraulic mechanisms, and the lower shaft portion is installed with at least three second hydraulic mechanisms, the second hydraulic mechanism is adapted to drive a pushing member against the wall of the well to guide the head of a drill tool, the first hydraulic mechanism and the second hydraulic mechanism are configured so that the first hydraulic mechanism can drive the second hydraulic mechanism to drive the pushing member.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: November 17, 2020
    Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Qingbo Liu, Qingyun Di, Tsili Wang, Wenxuan Chen, Jiansheng Du, Yongyou Yang, Xinzhen He, Linfeng Hong, Qijun Xie
  • Patent number: 10830037
    Abstract: A constant amplitude adjusting method and system for pressure pulse of drilling tool including obtaining a current flow velocity value of mud at the rear of a pressure pulse generator in the drilling tool, and sending the current flow velocity value to a controller; the controller compares the current flow velocity value with a preset flow velocity value, and sends an adjustment instruction to the pressure pulse generator according to the comparison result; the pressure pulse generator adjusts the opening degree according to the adjustment instruction of the controller. The adjusting system comprising a pressure pulse generator for generating a pressure pulse wave, and the opening degree is adjustable.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: November 10, 2020
    Assignee: Institute of Geology and Geophysics, Chinese Academy of Sciences
    Inventors: Jiansheng Du, Qingyun Di, Zili Wang, Wenxuan Chen, Xinzhen He, Yongyou Yang
  • Patent number: 10815730
    Abstract: The invention discloses an anti-rotating device of non-rotating sleeve. The anti-rotating device is connected with the non-rotating sleeve in such way so that the anti-rotating device can transmit circumferential acting force to the non-rotating sleeve, thus the non-rotating sleeve are prevented from rotating, the anti-rotating device comprises an anti-rotating member and a resilient member, the anti-rotating member can move in a generally radial direction of the non-rotating sleeve, and the resilient member acts on the anti-rotating member and provides acting force being substantially radially outward for the anti-rotating member.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: October 27, 2020
    Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Qingbo Liu, Qingyun Di, Tsili Wang, Wenxuan Chen, Jiansheng Du, Yongyou Yang, Xinzhen He, Linfeng Hong, Qijun Xie
  • Publication number: 20200263503
    Abstract: A hybrid rotary guiding device, includes: rotating shaft, the rotating shaft is used to drive the head of a drill tool to rotate, the rotating shaft includes an upper shaft portion, a lower shaft portion, and a steerable portion, a separation distance exists between the upper shaft portion and the lower shaft portion in the axial direction, the upper shaft portion and the lower shaft portion are steerably connected by the steerable portion; the upper shaft portion is installed with at least three first hydraulic mechanisms, and the lower shaft portion is installed with at least three second hydraulic mechanisms, the second hydraulic mechanism is adapted to drive a pushing member against the wall of the well to guide the head of a drill tool, the first hydraulic mechanism and the second hydraulic mechanism are configured so that the first hydraulic mechanism can drive the second hydraulic mechanism to drive the pushing member.
    Type: Application
    Filed: March 2, 2018
    Publication date: August 20, 2020
    Applicant: Institute of Geology and Geophysics, Chinese Academy of Sciences
    Inventors: Qingbo LIU, Qingyun DI, Tsili WANG, Wenxuan CHEN, Jiansheng DU, Yongyou YANG, Xinzhen HE, Linfeng HONG, Qijun XIE
  • Publication number: 20200263500
    Abstract: The invention discloses an anti-rotating device of non-rotating sleeve. The anti-rotating device is connected with the non-rotating sleeve in such way so that the anti-rotating device can transmit circumferential acting force to the non-rotating sleeve, thus the non-rotating sleeve are prevented from rotating, the anti-rotating device comprises an anti-rotating member and a resilient member, the anti-rotating member can move in a generally radial direction of the non-rotating sleeve, and the resilient member acts on the anti-rotating member and provides acting force being substantially radially outward for the anti-rotating member.
    Type: Application
    Filed: March 2, 2018
    Publication date: August 20, 2020
    Applicant: Institute of Geology and Geophysics, Chinese Academy of Sciences
    Inventors: Qingbo LIU, Qingyun DI, Tsili WANG, Wenxuan CHEN, Jiansheng DU, Yongyou YANG, Xinzhen HE, Linfeng HONG, Qijun XIE
  • Publication number: 20200208507
    Abstract: The present invention discloses a fluid pressure measuring device for a measurement-while-drilling tool, which including a first sensor assembly (1), a second sensor assembly (2) and a sealing member (3), wherein a mounting groove (5) is formed on an outer side wall of a drill collar (4) of a measurement-while-drilling tool; the sealing member (3) is fixedly mounted on the mounting groove (5); both the first sensor assembly (1) and the second sensor assembly (2) are fixedly mounted in the mounting groove (5); a first liquid inlet hole (7) is formed in the sealing member (3); a second liquid inlet hole (9) communicated with a center flow channel (8) of the drill collar (4) is formed in the mounting groove (5); a liquid inlet end of the first sensor assembly (1) is communicated with the first liquid inlet hole (7); and a liquid inlet end of the second sensor assembly (2) is communicated with the second liquid inlet hole (9).
    Type: Application
    Filed: July 19, 2019
    Publication date: July 2, 2020
    Applicant: Institute of Geology and Geophysics, Chinese Academy of Sciences
    Inventors: Jiansheng DU, Qingyun DI, Zili WANG, Wenxuan CHEN, Xinzhen HE, Yongyou YANG
  • Publication number: 20200208511
    Abstract: A constant amplitude adjusting method and system for pressure pulse of drilling tool including obtaining a current flow velocity value of mud at the rear of a pressure pulse generator in the drilling tool, and sending the current flow velocity value to a controller; the controller compares the current flow velocity value with a preset flow velocity value, and sends an adjustment instruction to the pressure pulse generator according to the comparison result; the pressure pulse generator adjusts the opening degree according to the adjustment instruction of the controller. The adjusting system comprising a pressure pulse generator for generating a pressure pulse wave, and the opening degree is adjustable.
    Type: Application
    Filed: December 16, 2019
    Publication date: July 2, 2020
    Applicant: Institute of Geology and Geophysics, Chinese Academy of Sciences
    Inventors: Jiansheng DU, Qingyun DI, Zili WANG, Wenxuan CHEN, Xinzhen HE, Yongyou YANG
  • Patent number: 10693268
    Abstract: The present disclosure relates to a conductive slip ring for logging while drilling (LWD) instrument. The present disclosure utilizes a mechanical conductive slip ring to solve the problems of transmission of electric power and signals between two structures that have relative rotation, and the conductive slip ring has a simple structure, doesn't involve any complex circuit, and has low cost and high reliability. With the conductive slip ring in the present disclosure, there is no power transmission efficiency problem or signal transmission error rate problem. The conductive slip ring has high temperature-resistant, pressure-proof, and vibration-roof abilities, and can be applied widely.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: June 23, 2020
    Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS CHINESE ACADEMY OF SCIENCES
    Inventors: Xinzhen He, Qingyun Di, Wenxuan Chen, Jiansheng Du, Qingbo Liu
  • Publication number: 20200190909
    Abstract: A rotary guiding device comprises a rotating shaft, the rotating shaft is used to drive a tool head to rotate, and the rotating shaft includes at least one steerable portion; a first non-rotating body and a second non-rotating body, the first non-rotating body and the second non-rotating body are substantially in a non-rotating state in a circumferential direction thereof relative to the rotating shaft when the rotating shaft drives the tool head to rotate; a guide driving mechanism, the guide driving mechanism is configured to connect the first non-rotating body and the second non-rotating body, the guide driving mechanism is adapted to generate a substantially axial driving force to change the relative direction between the first non-rotating body and the second non-rotating body, thereby changing the orientation of the tool head.
    Type: Application
    Filed: March 2, 2018
    Publication date: June 18, 2020
    Applicant: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Qingbo LIU, Qingyun DI, Tsili WANG, Wenxuan CHEN, Jiansheng DU, Yongyou YANG, Xinzhen HE, Linfeng HONG, Qijun XIE
  • Patent number: 10619478
    Abstract: The present disclosure provides a device for power transmission and signal transfer between the stator and the rotor of a screw drilling tool. The present disclosure can replace the wireless communication technique between the rotary steering tool and the integrated MWD/LWD, omit the upper mud generator above the rotary steering tool, and thereby realize power transmission and signal transfer between the stator and the rotor of the screw drilling tool.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: April 14, 2020
    Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS CHINESE ACADEMY OF SCIENCES
    Inventors: Xinzhen He, Qingyun Di, Wenxuan Chen, Jiansheng Du, Qingbo Liu, Yongyou Yang
  • Publication number: 20200087986
    Abstract: A rotary guiding device based on radial driving force, comprising: a rotating shaft, the rotating shaft is used to drive a tool head to rotate, the rotating shaft includes an upper shaft portion, a lower shaft portion, and a steerable portion, the upper shaft portion and the lower shaft portion are steerably connected by the steerable portion;a non-rotating body mounted on the upper shaft portion, the non-rotating body is substantially non-rotating with respect to the rotating shaft in the circumferential direction when the rotating shaft rotationally drives the tool head, the lower shaft portion includes a rib portion that coincides at least partially in the axial direction with the non-rotating body, the non-rotating body includes at least three hydraulic driving mechanisms uniformly distributed along its circumferential direction, the three hydraulic driving mechanisms are adapted to controllably generate radial drive forces respectively, the radial driving forces acts on the rib portion that is overlapped
    Type: Application
    Filed: March 2, 2018
    Publication date: March 19, 2020
    Applicant: Institute of Geology and Geophysics, Chinese Academy of Sciences
    Inventors: Qingbo LIU, Qingyun DI, Tsili WANG, Wenxuan CHEN, Jiansheng DU, Yongyou YANG, Xinzhen HE, Linfeng HONG, Qijun XIE
  • Publication number: 20200067247
    Abstract: The present disclosure relates to a conductive slip ring for logging while drilling (LWD) instrument. The present disclosure utilizes a mechanical conductive slip ring to solve the problems of transmission of electric power and signals between two structures that have relative rotation, and the conductive slip ring has a simple structure, doesn't involve any complex circuit, and has low cost and high reliability. With the conductive slip ring in the present disclosure, there is no power transmission efficiency problem or signal transmission error rate problem. The conductive slip ring has high temperature-resistant, pressure-proof, and vibration-roof abilities, and can be applied widely.
    Type: Application
    Filed: August 29, 2019
    Publication date: February 27, 2020
    Applicant: Institute of Geology And Geophysics, Chinese Academy Of Sciences
    Inventors: Xinzhen He, Qingyun Di, Wenxuan Chen, Jiansheng Du, Qingbo Liu