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).
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Publication number: 20190129055Abstract: 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: ApplicationFiled: November 1, 2018Publication date: May 2, 2019Inventors: Yongyou YANG, Zhongxing WANG, Tianxin ZHANG, Renzhong PEI, Wenxiu ZHANG, Qingyun DI
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Publication number: 20190086439Abstract: 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: ApplicationFiled: September 17, 2018Publication date: March 21, 2019Applicant: INSTITUTE OF GEOLOGY AND GEOPHYSICS CHINESE ACADEMY OF SCIENCESInventors: Wenxiu ZHANG, Yongyou YANG, Jian ZHENG, Yuntao SUN, Qingyun DI, Wenxuan CHEN, Changchun YANG
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Publication number: 20190055840Abstract: 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: ApplicationFiled: August 16, 2018Publication date: February 21, 2019Inventors: Jian ZHENG, Zili WANG, Wenxuan CHEN, Qingyun DI, Yuntao SUN, Yongyou YANG, Wenxiu ZHANG
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Patent number: 10202841Abstract: 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: GrantFiled: August 29, 2017Date of Patent: February 12, 2019Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Wenxiu Zhang, Qingyun Di, Wenxuan Chen, Yongyou Yang, Yuntao Sun, Jian Zheng, Jianguang Liu
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Patent number: 10168432Abstract: 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: GrantFiled: January 26, 2018Date of Patent: January 1, 2019Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Yongyou Yang, Zhongxing Wang, Qingyun Di, Wenxiu Zhang, Binbin Chen, Renzhong Pei, Shujun Wu
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Patent number: 10120795Abstract: 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: GrantFiled: September 8, 2017Date of Patent: November 6, 2018Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Yongyou Yang, Wenxuan Chen, Qingyun Di, Wenxiu Zhang, Yuntao Sun, Jian Zheng
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Patent number: 10082021Abstract: 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: GrantFiled: November 20, 2017Date of Patent: September 25, 2018Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Jian Zheng, Wenxuan Chen, Qingyun Di, Yuntao Sun, Yongyou Yang, Wenxiu Zhang
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Publication number: 20180223646Abstract: 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: ApplicationFiled: November 12, 2016Publication date: August 9, 2018Inventors: Wenxiu ZHANG, Wenxuan CHEN, Qingyun DI, Jianguang LIU, Yuntao SUN, Yongyou YANG, Jian ZHENG
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Patent number: 10030504Abstract: 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: GrantFiled: November 21, 2017Date of Patent: July 24, 2018Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Jian Zheng, Qingyun Di, Wenxuan Chen, Wenxiu Zhang, Yuntao Sun, Yongyou Yang
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Publication number: 20180202287Abstract: 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: ApplicationFiled: September 19, 2017Publication date: July 19, 2018Inventors: Yuntao SUN, Wenxuan CHEN, Wenxiu ZHANG, Yongyou YANG, Qingyun DI, Jian ZHENG
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Publication number: 20180203157Abstract: 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: ApplicationFiled: September 19, 2017Publication date: July 19, 2018Inventors: Yuntao SUN, Wenxuan CHEN, Wenxiu ZHANG, Yongyou YANG, Qingyun DI, Jian ZHENG
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Patent number: 10025003Abstract: 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: GrantFiled: September 19, 2017Date of Patent: July 17, 2018Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Yuntao Sun, Wenxuan Chen, Wenxiu Zhang, Yongyou Yang, Qingyun Di, Jian Zheng
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Publication number: 20180149756Abstract: 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: ApplicationFiled: January 26, 2018Publication date: May 31, 2018Inventors: Yongyou YANG, Zhongxing WANG, Qingyun DI, Wenxiu ZHANG, Binbin CHEN, Renzhong PEI, Shujun WU
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Publication number: 20180142551Abstract: 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: ApplicationFiled: November 20, 2017Publication date: May 24, 2018Inventors: Jian ZHENG, Wenxuan CHEN, Qingyun DI, Yuntao SUN, Yongyou YANG, Wenxiu ZHANG
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Publication number: 20180142546Abstract: 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: ApplicationFiled: November 21, 2017Publication date: May 24, 2018Inventors: Jian ZHENG, Qingyun DI, Wenxuan CHEN, Wenxiu ZHANG, Yuntao SUN, Yongyou YANG
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Patent number: 9970288Abstract: 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: GrantFiled: August 31, 2017Date of Patent: May 15, 2018Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCEInventors: Jian Zheng, Qingyun Di, Wenxuan Chen, Yuntao Sun, Wenxiu Zhang, Yongyou Yang
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Publication number: 20180081797Abstract: 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: ApplicationFiled: September 8, 2017Publication date: March 22, 2018Inventors: Yongyou YANG, Wenxuan CHEN, Qingyun DI, Wenxiu ZHANG, Yuntao SUN, Jian ZHENG
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Publication number: 20180058192Abstract: 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: ApplicationFiled: August 29, 2017Publication date: March 1, 2018Inventors: Wenxiu ZHANG, Qingyun DI, Wenxuan CHEN, Yongyou YANG, Yuntao SUN, Jian ZHENG, Jianguang LIU
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Publication number: 20180058849Abstract: 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: ApplicationFiled: August 31, 2017Publication date: March 1, 2018Inventors: Yuntao SUN, Wenxuan CHEN, Wenxiu ZHANG, Yongyou YANG, Jian ZHENG
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Publication number: 20180058201Abstract: 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: ApplicationFiled: August 31, 2017Publication date: March 1, 2018Inventors: Jian ZHENG, Wenxuan CHEN, Qingyun DI, Yuntao SUN, Yongyou YANG, Wenxiu ZHANG