Patents by Inventor Wenxiu ZHANG

Wenxiu ZHANG 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: 20190129055
    Abstract: In a system for arranging survey points in field operation with a ground electromagnetic instrument, the position information of survey lines and survey points are planned and downloaded to an aircraft in advance. The survey lines and one survey point among survey points planned in advance is selected and the coordinate information of the survey point is acquired. The aircraft is controlled to fly to the physical geographic location of the survey point according to the coordinate information of the survey point in conjunction with positioning information acquired in real time. The aircraft hovers above the physical geographic location of the survey point and projects a predetermined indication mark to the ground. The detection instrument and electric field sensor are deployed at a first position indicated by the indication mark, and the magnetic field sensor is deployed at a second position; such a process is repeated till all of the planned survey points are arranged.
    Type: Application
    Filed: November 1, 2018
    Publication date: May 2, 2019
    Inventors: Yongyou YANG, Zhongxing WANG, Tianxin ZHANG, Renzhong PEI, Wenxiu ZHANG, Qingyun DI
  • Publication number: 20190086439
    Abstract: The disclosure relates to the field of drilling tool attitude measurement, and particularly to a dynamic testing device suitable for a drilling tool attitude measurement module. The dynamic testing device may comprise a test fixture for attitude measurement module, an azimuth rotation device for adjusting an azimuth angle, an inclination angle swing device for adjusting an inclination angle, and a toolface angle rotation device for driving the test fixture for attitude measurement module to rotate, and a rotation speed measurement device for measuring a rotation speed and a self-rotation angle of the test fixture for attitude measurement module in a rotating state. The testing device has characteristics of large bearing weight, high rotation speed which is measurable and controllable, convenient for mounting and fixing a tested module, etc. It can simulate conditions of downhole rotation of a drilling tool, and be used for dynamic testing of the attitude measurement module.
    Type: Application
    Filed: September 17, 2018
    Publication date: March 21, 2019
    Applicant: INSTITUTE OF GEOLOGY AND GEOPHYSICS CHINESE ACADEMY OF SCIENCES
    Inventors: Wenxiu ZHANG, Yongyou YANG, Jian ZHENG, Yuntao SUN, Qingyun DI, Wenxuan CHEN, Changchun YANG
  • Publication number: 20190055840
    Abstract: An acoustic source testing apparatus of an azimuthally acoustic logging while drilling (LWD) instrument includes a water tank, a silicone oil, a drill collar, an azimuthally acoustic while drilling quadrupole transmitting apparatus and an acoustic signal reception apparatus. The bottom of the water tank is symmetrically provided with two supporting columns, the drill collar is disposed in U-shaped grooves on the supporting columns, the azimuthally acoustic quadrupole LWD transmitting apparatus and the acoustic signal reception apparatus are disposed on the drill collar, the silicone oil is filled in the water tank, and the drill collar, the azimuthally acoustic quadrupole LWD transmitting apparatus and the acoustic signal reception apparatus are completely covered in the silicone oil.
    Type: Application
    Filed: August 16, 2018
    Publication date: February 21, 2019
    Inventors: Jian ZHENG, Zili WANG, Wenxuan CHEN, Qingyun DI, Yuntao SUN, Yongyou YANG, Wenxiu ZHANG
  • Patent number: 10202841
    Abstract: A near-bit tool attitude MWD apparatus includes measurement sensors and a measurement circuit. The measurement sensors transmit measured signals to the measurement circuit, and the measurement circuit processes and calculates the signals to obtain attitude data. The measurement sensors include a triaxial accelerometer, a triaxial gyroscope, a triaxial magnetic sensor and a temperature sensor, the measured data of the triaxial accelerometer, the triaxial gyroscope and the triaxial magnetic sensor are respectively corrected using the measured data of the temperature sensor, a first attitude angle is calculated using the corrected measured data of the triaxial accelerometer and the triaxial magnetic sensor. Quaternions are initialized using the first attitude angle, and the initialized quaternions are subjected to time updating according to the measured data of the triaxial gyroscope, and further an attitude angle is calculated utilizing the updated quaternions.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: February 12, 2019
    Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Wenxiu Zhang, Qingyun Di, Wenxuan Chen, Yongyou Yang, Yuntao Sun, Jian Zheng, Jianguang Liu
  • Patent number: 10168432
    Abstract: A distributed electromagnetic method synchronization system and method involving a satellite communication and navigation system. The method includes the following steps: the transmitter and the receiver establish connection with the satellite respectively to realize the position and time synchronization; the transmitter and the receiver acquire the second-pulse-signal, and according to the second-pulse-signal to adjust their own temperature compensation crystal, so that the frequency reaches the preset value; in the field of operation, the transmitter and receiver through the satellite mutual communication, timely adjustment of the operation process. In the above-mentioned way, the communication function can be set in one place to facilitate the timely adjustment of the data acquisition process so as to ensure the quality of the collected data and improve the efficiency of the field operation.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: January 1, 2019
    Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Yongyou Yang, Zhongxing Wang, Qingyun Di, Wenxiu Zhang, Binbin Chen, Renzhong Pei, Shujun Wu
  • Patent number: 10120795
    Abstract: A wear-leveling NandFlash memory reading/writing method can identify a bad block, avoid the bad block, and equalize writing operations to ensure that all the blocks are identical in number of the writing operations so as to guarantee wear-leveling NandFlash memory reading and writing of the entire memory. This method has characteristics of low computational and small RAM cost, is suitable for the application scenario like operating a single file for a long time with an imbedded system with low cost and poor hardware resource, and can provide a complete file system solution.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: November 6, 2018
    Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Yongyou Yang, Wenxuan Chen, Qingyun Di, Wenxiu Zhang, Yuntao Sun, Jian Zheng
  • Patent number: 10082021
    Abstract: An azimuthally acoustic while drilling signal receiving transducer encapsulating apparatus includes a drill collar, a receiving transducer, a preposed signal processing circuit and a master control electronics housing. The receiving transducer and the preposed signal processing circuit are encapsulated on a drill collar body individually. The receiving transducer and the signal processing circuit are electrically connected by a sealing electrical connector. The preposed signal processing circuit and the master control electronic housing are electrically connected. The signal processing circuit is preposed in terms of signal processing, and encapsulated on the drill collar, so that signal receiving and processing cable length is shortened and noise interference is reduced.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: September 25, 2018
    Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Jian Zheng, Wenxuan Chen, Qingyun Di, Yuntao Sun, Yongyou Yang, Wenxiu Zhang
  • Publication number: 20180223646
    Abstract: An apparatus for measuring gravity acceleration of a drilling tool comprises sensors and a measurement circuit. The sensor comprises a three-axis gravity accelerometer, a reference measurement sensor and a temperature sensor. The three-axis gravity accelerometer measures acceleration component signals in three mutually orthogonal directions, and the reference measurement sensor generates a signal that varies with rotation and is not affected by vibration or shock to serve as a reference signal. The temperature sensor measures the temperature in the apparatus to compensate the temperature effect of the gravity accelerometers. The measurement circuit acquires output signals of the sensors and performs cross-correlation processing on the accelerometer components using the reference signal to extract gravity acceleration signals so as to eliminate centrifugal acceleration, vibration, shock and other interferences generated by rotation.
    Type: Application
    Filed: November 12, 2016
    Publication date: August 9, 2018
    Inventors: Wenxiu ZHANG, Wenxuan CHEN, Qingyun DI, Jianguang LIU, Yuntao SUN, Yongyou YANG, Jian ZHENG
  • Patent number: 10030504
    Abstract: An apparatus for receiving signals in azimuthally acoustic LWD includes a drill collar body, a circuit mounting frame, a receiving transducer, a sealing connector, a preposed processing circuit module, a first receiving signal processing circuit for processing a signal from the transducer, distance detecting sensors, at least one set of plugging assemblies, an electrical connector and a second receiving signal processing circuit for processing signals from the distance detecting sensors. The circuit mounting frame is located inside the drill collar body and connected with the drill collar body. The receiving apparatus integrates a borehole diameter measurement system and an azimuthally acoustic while drilling receiving system on one drill collar.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: July 24, 2018
    Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Jian Zheng, Qingyun Di, Wenxuan Chen, Wenxiu Zhang, Yuntao Sun, Yongyou Yang
  • Publication number: 20180202287
    Abstract: In an apparatus for multi-pole acoustic logging while drilling, a N-cycle sinusoidal wave signal is generated by utilizing a signal processor, and amplified into a high-voltage sinusoidal excitation signal by utilizing a power amplifier, and output to a transmitting transducer. The signal processor simultaneously generates an enable signal. The enable signal includes a transient discharge enable signal. The power amplifier is connected with a transient discharge circuit. After the signal processor generates N cycles of a sinusoidal wave, the transient discharge enable signal enables the transient discharge circuit to discharge to release an energy storage current of a power transformer so as to eliminate a high-voltage ringing effect and improve an excitation efficiency of the transducer.
    Type: Application
    Filed: September 19, 2017
    Publication date: July 19, 2018
    Inventors: Yuntao SUN, Wenxuan CHEN, Wenxiu ZHANG, Yongyou YANG, Qingyun DI, Jian ZHENG
  • Publication number: 20180203157
    Abstract: A calibration method under a near-bit wireless short-transmission ground environment includes the following steps: placing an emitter and a receiver, which are connected across a screw, in a container containing a solution, connecting the emitter with the receiver through a copper wire to form a loop of an electric field signal, connecting the emitter with a transmitting circuit to achieve signal transmission, connecting the receiver with a receiving circuit to achieve signal reception, and calibrating an optimal transmitting power and a receiving gain by measuring an amplitude relationship between a transmitted signal and a received signal in a case where resistivity values of solutions are different.
    Type: Application
    Filed: September 19, 2017
    Publication date: July 19, 2018
    Inventors: Yuntao SUN, Wenxuan CHEN, Wenxiu ZHANG, Yongyou YANG, Qingyun DI, Jian ZHENG
  • Patent number: 10025003
    Abstract: A calibration method under a near-bit wireless short-transmission ground environment includes the following steps: placing an emitter and a receiver, which are connected across a screw, in a container containing a solution, connecting the emitter with the receiver through a copper wire to form a loop of an electric field signal, connecting the emitter with a transmitting circuit to achieve signal transmission, connecting the receiver with a receiving circuit to achieve signal reception, and calibrating an optimal transmitting power and a receiving gain by measuring an amplitude relationship between a transmitted signal and a received signal in a case where resistivity values of solutions are different.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: July 17, 2018
    Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Yuntao Sun, Wenxuan Chen, Wenxiu Zhang, Yongyou Yang, Qingyun Di, Jian Zheng
  • Publication number: 20180149756
    Abstract: A distributed electromagnetic method synchronization system and method involving a satellite communication and navigation system. The method includes the following steps: the transmitter and the receiver establish connection with the satellite respectively to realize the position and time synchronization; the transmitter and the receiver acquire the second-pulse-signal, and according to the second-pulse-signal to adjust their own temperature compensation crystal, so that the frequency reaches the preset value; in the field of operation, the transmitter and receiver through the satellite mutual communication, timely adjustment of the operation process. In the above-mentioned way, the communication function can be set in one place to facilitate the timely adjustment of the data acquisition process so as to ensure the quality of the collected data and improve the efficiency of the field operation.
    Type: Application
    Filed: January 26, 2018
    Publication date: May 31, 2018
    Inventors: Yongyou YANG, Zhongxing WANG, Qingyun DI, Wenxiu ZHANG, Binbin CHEN, Renzhong PEI, Shujun WU
  • Publication number: 20180142551
    Abstract: An azimuthally acoustic while drilling signal receiving transducer encapsulating apparatus includes a drill collar, a receiving transducer, a preposed signal processing circuit and a master control electronics housing. The receiving transducer and the preposed signal processing circuit are encapsulated on a drill collar body individually. The receiving transducer and the signal processing circuit are electrically connected by a sealing electrical connector. The preposed signal processing circuit and the master control electronic housing are electrically connected. The signal processing circuit is preposed in terms of signal processing, and encapsulated on the drill collar, so that signal receiving and processing cable length is shortened and noise interference is reduced.
    Type: Application
    Filed: November 20, 2017
    Publication date: May 24, 2018
    Inventors: Jian ZHENG, Wenxuan CHEN, Qingyun DI, Yuntao SUN, Yongyou YANG, Wenxiu ZHANG
  • Publication number: 20180142546
    Abstract: An apparatus for receiving signals in azimuthally acoustic LWD includes a drill collar body, a circuit mounting frame, a receiving transducer, a sealing connector, a preposed processing circuit module, a first receiving signal processing circuit for processing a signal from the transducer, distance detecting sensors, at least one set of plugging assemblies, an electrical connector and a second receiving signal processing circuit for processing signals from the distance detecting sensors. The circuit mounting frame is located inside the drill collar body and connected with the drill collar body. The receiving apparatus integrates a borehole diameter measurement system and an azimuthally acoustic while drilling receiving system on one drill collar.
    Type: Application
    Filed: November 21, 2017
    Publication date: May 24, 2018
    Inventors: Jian ZHENG, Qingyun DI, Wenxuan CHEN, Wenxiu ZHANG, Yuntao SUN, Yongyou YANG
  • Patent number: 9970288
    Abstract: A receiving apparatus for downhole near-bit wireless transmission emission includes an electrical isolation drill collar and an internal electrical isolation short tube. The insulating subs are serially connected and disposed in the middle of the electrical isolation drill collar and the internal electrical isolation sub to realize electric isolation. The electrical isolation drill collar is electrically coupled with the internal electrical isolation short tube through a lantern stabilizer. The receiving apparatus further includes a wireless transmission receiving unit. The electrical isolation drill collar and the internal electrical isolation short tube of the receiving apparatus both have an electrical isolation function. The insulating subs in the electrical isolation drill collar and the internal electrical isolation short tube are non-detachable, and can meet downhole requirements for high torsion and high-pressure sealing property.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: May 15, 2018
    Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCE
    Inventors: Jian Zheng, Qingyun Di, Wenxuan Chen, Yuntao Sun, Wenxiu Zhang, Yongyou Yang
  • Publication number: 20180081797
    Abstract: A wear-leveling NandFlash memory reading/writing method can identify a bad block, avoid the bad block, and equalize writing operations to ensure that all the blocks are identical in number of the writing operations so as to guarantee wear-leveling NandFlash memory reading and writing of the entire memory. This method has characteristics of low computational and small RAM cost, is suitable for the application scenario like operating a single file for a long time with an imbedded system with low cost and poor hardware resource, and can provide a complete file system solution.
    Type: Application
    Filed: September 8, 2017
    Publication date: March 22, 2018
    Inventors: Yongyou YANG, Wenxuan CHEN, Qingyun DI, Wenxiu ZHANG, Yuntao SUN, Jian ZHENG
  • Publication number: 20180058192
    Abstract: A near-bit tool attitude MWD apparatus includes measurement sensors and a measurement circuit. The measurement sensors transmit measured signals to the measurement circuit, and the measurement circuit processes and calculates the signals to obtain attitude data. The measurement sensors include a triaxial accelerometer, a triaxial gyroscope, a triaxial magnetic sensor and a temperature sensor, the measured data of the triaxial accelerometer, the triaxial gyroscope and the triaxial magnetic sensor are respectively corrected using the measured data of the temperature sensor, a first attitude angle is calculated using the corrected measured data of the triaxial accelerometer and the triaxial magnetic sensor. Quaternions are initialized using the first attitude angle, and the initialized quaternions are subjected to time updating according to the measured data of the triaxial gyroscope, and further an attitude angle is calculated utilizing the updated quaternions.
    Type: Application
    Filed: August 29, 2017
    Publication date: March 1, 2018
    Inventors: Wenxiu ZHANG, Qingyun DI, Wenxuan CHEN, Yongyou YANG, Yuntao SUN, Jian ZHENG, Jianguang LIU
  • Publication number: 20180058849
    Abstract: A near-bit dynamic well deviation angle measurement apparatus includes a circuit board and 2n+1 accelerometers. One accelerometer is installed in an axial direction of a drilling tool and forms n sets of three-axis orthogonal installation together with other 2n accelerometers. The accelerometer installed in the axial direction measures Az?, and the remaining accelerometers respectively measure n X-axis radial components and n Y-axis radial components corresponding to the n X-axis radial components. A filter and a data processing unit are integrated on the circuit board. The circuit board acquires signals in which the components are eliminated by the accelerators in real time, and further high-frequency vibration and impact interference in the signals are filtered out by using the filter to obtain non-interference gravitational acceleration components Ax, Ay and Az, and further a well deviation angle is calculated.
    Type: Application
    Filed: August 31, 2017
    Publication date: March 1, 2018
    Inventors: Yuntao SUN, Wenxuan CHEN, Wenxiu ZHANG, Yongyou YANG, Jian ZHENG
  • Publication number: 20180058201
    Abstract: A apparatus for downhole near-bit wireless transmission includes a bit connecting housing, a mud motor connecting housing, an insulating sub made of an insulating material. The insulating sub is serially connected between the bit connecting housing and the mud motor connecting housing to electrical insulate the bit connecting housing and the mud motor connecting housing from each other. The bit connecting housing and the mud motor connecting housing respectively form an electromagnetic transmitting positive pole and an electromagnetic transmitting negative pole. The mechanical apparatus further includes measurement units, which are configured to acquire parameters measured near the bit and a data transmitting unit, which is configured to realize wireless transmission; and the data transmitting unit is configured to receive and transmit the parameters measured near the bit.
    Type: Application
    Filed: August 31, 2017
    Publication date: March 1, 2018
    Inventors: Jian ZHENG, Wenxuan CHEN, Qingyun DI, Yuntao SUN, Yongyou YANG, Wenxiu ZHANG