Patents by Inventor Mingdong XU
Mingdong XU 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: 20240110479Abstract: The present disclosure provides a multi-factor quantitative analysis method for deformation of a neighborhood tunnel. The method includes the following steps: analyzing monitoring data generated at a tunnel site; simulating collapse occurring at a shallow buried section of a tunnel; determining the degree of influence of each factor on the tunnel and a stratum; and determining quantitative influence of each factor on tunnel deformation. The present disclosure can not only provide an accurate theoretical basis for the construction of the shallow buried section of the small-distance tunnel, but also guarantee safety and cost saving during tunnel construction.Type: ApplicationFiled: February 22, 2023Publication date: April 4, 2024Inventors: Yongjun ZHANG, Fei LIU, Sijia LIU, Junyi WANG, Bin GONG, Yingming WU, Ruiquan LU, Qingsong WANG, Qinghui XU, Xiaoming GUAN, Mingdong YAN, Xiangyang NI, Pingan WANG, Shuguang LI, Lin YANG, Ning NAN, Dengfeng YANG
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Patent number: 11649720Abstract: A downhole system has a plurality of telemetry systems and a control system configured to obtain information from one or more sensors and transmit that information on one or more of the plurality of telemetry systems. The configuration of a controller may be changed so as to change which information is transmitted on a given telemetry system and how the information is to be transmitted on the given telemetry system.Type: GrantFiled: April 29, 2022Date of Patent: May 16, 2023Inventors: Aaron W. Logan, David A. Switzer, Jili Liu, Justin C. Logan, Mingdong Xu
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Publication number: 20220333483Abstract: A downhole system has a plurality of telemetry systems and a control system configured to obtain information from one or more sensors and transmit that information on one or more of the plurality of telemetry systems. The configuration of a controller may be changed so as to change which information is transmitted on a given telemetry system and how the information is to be transmitted on the given telemetry system.Type: ApplicationFiled: April 29, 2022Publication date: October 20, 2022Inventors: Aaron W. LOGAN, David A. SWITZER, Jili LIU, Justin C. LOGAN, Mingdong XU
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Patent number: 11359483Abstract: A downhole system has a plurality of telemetry systems and a control system configured to obtain information from one or more sensors and transmit that information on one or more of the plurality of telemetry systems. The configuration of a controller may be changed so as to change which information is transmitted on a given telemetry system and how the information is to be transmitted on the given telemetry system.Type: GrantFiled: June 17, 2021Date of Patent: June 14, 2022Assignee: Evolution Engineering Inc.Inventors: Aaron W. Logan, David A. Switzer, Jili Liu, Justin C. Logan, Mingdong Xu
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Publication number: 20210381367Abstract: A downhole system has a plurality of telemetry systems and a control system configured to obtain information from one or more sensors and transmit that information on one or more of the plurality of telemetry systems. The configuration of a controller may be changed so as to change which information is transmitted on a given telemetry system and how the information is to be transmitted on the given telemetry system.Type: ApplicationFiled: June 17, 2021Publication date: December 9, 2021Inventors: Aaron W. LOGAN, David A. SWITZER, Jili LIU, Justin C. LOGAN, Mingdong XU
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Patent number: 11073015Abstract: A downhole system has a plurality of telemetry systems and a control system configured to obtain information from one or more sensors and transmit that information on one or more of the plurality of telemetry systems. The configuration of a controller may be changed so as to change which information is transmitted on a given telemetry system and how the information is to be transmitted on the given telemetry system.Type: GrantFiled: March 7, 2019Date of Patent: July 27, 2021Assignee: Evolution Engineering Inc.Inventors: Aaron W. Logan, David A. Switzer, Jili Liu, Justin C. Logan, Mingdong Xu
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Patent number: 10731459Abstract: A downhole system has a plurality of telemetry systems and a control system configured to obtain information from one or more sensors and transmit that information on one or more of the plurality of telemetry systems. The configuration of a controller may be changed so as to change which information is transmitted on a given telemetry system and how the information is to be transmitted on the given telemetry system.Type: GrantFiled: March 27, 2019Date of Patent: August 4, 2020Assignee: Evolution Engineering Inc.Inventors: Aaron W. Logan, David A. Switzer, Jili Liu, Justin C. Logan, Mingdong Xu
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Publication number: 20200088026Abstract: A wireless communications system for a downhole drilling operation comprises a drill string, surface communications equipment, and a downhole telemetry tool. The surface communications equipment comprises a surface EM communications module with an EM downlink transmitter configured to transmit through at least a portion of the drill string an EM downlink transmission at a frequency between 0.5 Hz and 180 kHz. The downhole telemetry tool is mountable to a drill string and has a downhole electromagnetic (EM) communications unit with an EM downlink receiver configured to receive the EM downlink transmission. The downhole EM communications unit can further comprise an EM uplink transmitter configured to transmit an EM uplink transmission at a frequency GO between 0.5 Hz and 180 kHz, in which case the surface EM communications module further comprises an EM uplink receiver configured to receive the EM uplink transmission.Type: ApplicationFiled: February 26, 2018Publication date: March 19, 2020Inventors: Barry Daniel Buternowsky, Kurtis Kenneth Lee West, Jili Liu, Aaron William Logan, Mahdi Yousefi Koopaei, Vincent Raymond Martin, Ali Ahmed Ali Massoud, David Arthur Sidney Switzer, Mingdong Xu, Mojtaba Kazemi Miraki
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Patent number: 10443374Abstract: A wireless communications system for a downhole drilling operation comprises surface communications equipment and a downhole telemetry tool. The surface communications equipment comprises a surface EM communications module with an EM downlink transmitter configured to transmit an EM downlink transmission at a frequency between 0.01 Hz and 0.1 Hz. The downhole telemetry tool is mountable to a drill string and has a downhole electromagnetic (EM) communications unit with an EM downlink receiver configured to receive the EM downlink transmission. The downhole EM communications unit can further comprise an EM uplink transmitter configured to transmit an EM uplink transmission at a frequency greater than 0.5 Hz, in which case the surface EM communications module further comprises an EM uplink receiver configured to receive the EM uplink transmission.Type: GrantFiled: February 27, 2018Date of Patent: October 15, 2019Assignee: Evolution Engineering Inc.Inventors: David A. Switzer, Jili Liu, Mingdong Xu, Mojtaba Kazemi Miraki, Aaron W. Logan
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Publication number: 20190284930Abstract: A downhole system has a plurality of telemetry systems and a control system configured to obtain information from one or more sensors and transmit that information on one or more of the plurality of telemetry systems. The configuration of a controller may be changed so as to change which information is transmitted on a given telemetry system and how the information is to be transmitted on the given telemetry system.Type: ApplicationFiled: March 27, 2019Publication date: September 19, 2019Inventors: Aaron W. LOGAN, David A. SWITZER, Jili LIU, Justin C. LOGAN, Mingdong XU
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Publication number: 20190203589Abstract: A downhole system has a plurality of telemetry systems and a control system configured to obtain information from one or more sensors and transmit that information on one or more of the plurality of telemetry systems. The configuration of a controller may be changed so as to change which information is transmitted on a given telemetry system and how the information is to be transmitted on the given telemetry system.Type: ApplicationFiled: March 7, 2019Publication date: July 4, 2019Inventors: Aaron W. LOGAN, David A. SWITZER, Jili LIU, Justin C. LOGAN, Mingdong XU
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Patent number: 10253621Abstract: A downhole system has a plurality of telemetry systems and a control system configured to obtain information from one or more sensors and transmit that information on one or more of the plurality of telemetry systems. The configuration of a controller may be changed so as to change which information is transmitted on a given telemetry system and how the information is to be transmitted on the given telemetry system.Type: GrantFiled: February 15, 2017Date of Patent: April 9, 2019Assignee: Evolution Engineering Inc.Inventors: Aaron W. Logan, David A. Switzer, Jili Liu, Justin C. Logan, Mingdong Xu
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Patent number: 10233747Abstract: An electromagnetic telemetry system adjusts telemetry parameters which may include carrier frequency, signal amplitude and/or data encoding protocol to achieve reliable data transmission and to conserve power. In some embodiments, sweep signals transmit a range of carrier frequencies and the parameters are determined in part by analyzing the received sweep signals. In some embodiments, different parameters are selected automatically based on a mode of drilling.Type: GrantFiled: May 22, 2018Date of Patent: March 19, 2019Assignee: Evolution Engineering Inc.Inventors: Jili Liu, Mingdong Xu, Aaron W. Logan, David A. Switzer, Monica E. Varga, Mojtaba Kazemi Miraki
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Patent number: 10215021Abstract: A measurement-while-drilling (MWD) telemetry system comprises a downhole MWD telemetry tool comprising a mud pulse (MP) telemetry unit and an electromagnetic (EM) telemetry unit. The MWD telemetry tool can be configured to transmit data in an EM-only telemetry mode using only the EM telemetry unit, in an MP-only mode using only the MP telemetry unit, or in a concurrent telemetry mode using both the EM and MP telemetry units concurrently. When transmitting data in the concurrent telemetry mode, the telemetry tool can be configured to transmit in a concurrent confirmation mode wherein the same telemetry data is transmitted by each of the EM and MP telemetry units, or in a concurrent shared mode wherein some of the telemetry data is transmitted by the EM telemetry unit, and the rest of the telemetry data is transmitted by the MP telemetry unit. The telemetry tool can be programmed to change its operating telemetry mode in response to a downlink command sent by an operator at surface.Type: GrantFiled: August 3, 2018Date of Patent: February 26, 2019Assignee: Evolution Engineering Inc.Inventors: David A. Switzer, Jili Liu, Aaron W. Logan, Mingdong Xu
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Patent number: 10202844Abstract: Methods, techniques, and systems for transmitting a data frame of an electromagnetic (EM) telemetry signal to or from a downhole location can be performed using multi-channel transmissions in which at least two different channels at two different frequencies are used to send a long header and the data frame. At least a portion of the long header is transmitted at a first frequency, and at least a portion of the data frame and any remaining portion of the long header not transmitted at the first frequency are transmitted at one or more additional frequencies different from each other and the first frequency. In one example, only two channels are used: one channel is used to transmit all of the long header, another channel is used to transmit all of the data frame, and either of the channels is used to transmit an identifier identifying the type of the data frame.Type: GrantFiled: February 16, 2017Date of Patent: February 12, 2019Assignee: Evoution Engineering Inc.Inventors: David A. Switzer, Jili Liu, Mingdong Xu, Aaron W. Logan
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Publication number: 20180371899Abstract: A measurement-while-drilling (MWD) telemetry system comprises a downhole MWD telemetry tool comprising a mud pulse (MP) telemetry unit and an electromagnetic (EM) telemetry unit. The MWD telemetry tool can be configured to transmit data in an EM-only telemetry mode using only the EM telemetry unit, in an MP-only mode using only the MP telemetry unit, or in a concurrent telemetry mode using both the EM and MP telemetry units concurrently. When transmitting data in the concurrent telemetry mode, the telemetry tool can be configured to transmit in a concurrent confirmation mode wherein the same telemetry data is transmitted by each of the EM and MP telemetry units, or in a concurrent shared mode wherein some of the telemetry data is transmitted by the EM telemetry unit, and the rest of the telemetry data is transmitted by the MP telemetry unit. The telemetry tool can be programmed to change its operating telemetry mode in response to a downlink command sent by an operator at surface.Type: ApplicationFiled: August 3, 2018Publication date: December 27, 2018Inventors: David A. SWITZER, Jili LIU, Aaron W. LOGAN, Mingdong XU
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Publication number: 20180266242Abstract: An electromagnetic telemetry system adjusts telemetry parameters which may include carrier frequency, signal amplitude and/or data encoding protocol to achieve reliable data transmission and to conserve power. In some embodiments, sweep signals transmit a range of carrier frequencies and the parameters are determined in part by analyzing the received sweep signals. In some embodiments, different parameters are selected automatically based on a mode of drilling.Type: ApplicationFiled: May 22, 2018Publication date: September 20, 2018Inventors: Jili LIU, Mingdong XU, Aaron W. LOGAN, David A. SWITZER, Monica E. VARGA, Mojtaba KAZEMI MIRAKI
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Publication number: 20180252096Abstract: A wireless communications system for a downhole drilling operation comprises surface communications equipment and a downhole telemetry tool. The surface communications equipment comprises a surface EM communications module with an EM downlink transmitter configured to transmit an EM downlink transmission at a frequency between 0.01 Hz and 0.1 Hz. The downhole telemetry tool is mountable to a drill string and has a downhole electromagnetic (EM) communications unit with an EM downlink receiver configured to receive the EM downlink transmission. The downhole EM communications unit can further comprise an EM uplink transmitter configured to transmit an EM uplink transmission at a frequency greater than 0.5 Hz, in which case the surface EM communications module further comprises an EM uplink receiver configured to receive the EM uplink transmission.Type: ApplicationFiled: February 27, 2018Publication date: September 6, 2018Inventors: David A. Switzer, Jili Liu, Mingdong Xu, Mojtaba Kazemi Miraki, Aaron W. Logan
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Patent number: 10066481Abstract: A measurement-while-drilling (MWD) telemetry system comprises a downhole MWD telemetry tool comprising a mud pulse (MP) telemetry unit and an electromagnetic (EM) telemetry unit. The MWD telemetry tool can be configured to transmit data in an EM-only telemetry mode using only the EM telemetry unit, in an MP-only mode using only the MP telemetry unit, or in a concurrent telemetry mode using both the EM and MP telemetry units concurrently. When transmitting data in the concurrent telemetry mode, the telemetry tool can be configured to transmit in a concurrent confirmation mode wherein the same telemetry data is transmitted by each of the EM and MP telemetry units, or in a concurrent shared mode wherein some of the telemetry data is transmitted by the EM telemetry unit, and the rest of the telemetry data is transmitted by the MP telemetry unit. The telemetry tool can be programmed to change its operating telemetry mode in response to a downlink command sent by an operator at surface.Type: GrantFiled: January 25, 2018Date of Patent: September 4, 2018Assignee: Evolution Engineering Inc.Inventors: David A. Switzer, Jili Liu, Aaron W. Logan, Mingdong Xu
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Publication number: 20180179889Abstract: A measurement-while-drilling (MWD) telemetry system comprises a downhole MWD telemetry tool comprising a mud pulse (MP) telemetry unit and an electromagnetic (EM) telemetry unit. The MWD telemetry tool can be configured to transmit data in an EM-only telemetry mode using only the EM telemetry unit, in an MP-only mode using only the MP telemetry unit, or in a concurrent telemetry mode using both the EM and MP telemetry units concurrently. When transmitting data in the concurrent telemetry mode, the telemetry tool can be configured to transmit in a concurrent confirmation mode wherein the same telemetry data is transmitted by each of the EM and MP telemetry units, or in a concurrent shared mode wherein some of the telemetry data is transmitted by the EM telemetry unit, and the rest of the telemetry data is transmitted by the MP telemetry unit. The telemetry tool can be programmed to change its operating telemetry mode in response to a downlink command sent by an operator at surface.Type: ApplicationFiled: January 25, 2018Publication date: June 28, 2018Inventors: David A. SWITZER, Jili LIU, Aaron W. LOGAN, Mingdong XU