Patents by Inventor Renjie JI
Renjie JI 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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Patent number: 11922335Abstract: The present disclosure relates to a method and system for evaluating the macro resilience of offshore oil well control equipment. The method for evaluating the macro resilience of offshore oil well control equipment comprises six steps: determining the type and strength of external disaster; calculating the failure rate of components; calculating the recovery rate of the components; modeling the BN for a degradation process; modeling the BN for a maintenance process; and calculating the resilience of the offshore oil well control equipment. A system for evaluating the macro resilience of offshore oil well control equipment comprises an external disaster evaluation module, a component failure rate calculation subsystem, a reliability degradation process simulation module, a fault identification module, a component recovery rate calculation module, a reliability recovery process simulation module, a reliability change curve derivation unit and an resilience calculation unit.Type: GrantFiled: December 5, 2019Date of Patent: March 5, 2024Assignee: China University of Petroleum (East China)Inventors: Baoping Cai, Yonghong Liu, Yanping Zhang, Chuntan Gao, Xiaoyan Shao, Hongqi Xu, Xincheng Li, Yandong Chen, Renjie Ji, Zengkai Liu, Libing Liu, Rikui Zhang, Yuqian Yang, Shitang Liu, Xin Wei
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Patent number: 11801500Abstract: Method for producing a tertiary amine catalyst comprising reacting a first tertiary amine having two or three hydroxyl moieties and a second tertiary amine having a halogen moiety. Also a method for producing tertiary amine catalysts comprising reacting a tertiary amine having at least two halogen moieties and either (i) a tertiary amine having at least one hydroxyl moiety, or (ii) a heterocyclic compound comprising an amine and an ether functional group.Type: GrantFiled: May 14, 2019Date of Patent: October 31, 2023Assignee: Huntsman Petrochemical LLCInventors: Haibo Zhao, Renjie Ji
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Publication number: 20220259368Abstract: This disclosure generally provides compositions with reduced aldehyde emissions and more specifically provides polyurethane compositions useful in means of transport such as interior part of cars, wherein the polyurethane composition comprising: (a) a polyfunctional isocyanate; (b) an isocyanate reactive composition; (c) a compound of the formula (I), (d) a primary amine containing compound; and (e) a catalyst.Type: ApplicationFiled: July 29, 2019Publication date: August 18, 2022Inventors: Renjie Ji, Yide Liang
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Patent number: 11346200Abstract: The present disclosure belongs to the field of marine engineering, and in particular relates to a method and system for guaranteeing the safety of offshore oil well control equipment. The method comprises: identifying the state of a main structure of the offshore oil well control equipment, identifying the state of a hydraulic control unit of offshore oil well control equipment, identifying the state of an electronic control unit of offshore oil well control equipment, predicting the state of the offshore oil well control equipment and making a real-time decision based on existing information; and the system for guaranteeing the safety of the offshore oil well control equipment comprises a state identification subsystem of a main structure, a state identification subsystem of the hydraulic control unit, a state identification subsystem of the electronic control unit and a state prediction and real-time decision subsystem.Type: GrantFiled: December 5, 2019Date of Patent: May 31, 2022Assignee: China University of Petroleum (East China)Inventors: Baoping Cai, Yonghong Liu, Chao Yang, Xiangdi Kong, Yi Zhao, Hongqi Xu, Xincheng Li, Yandong Chen, Renjie Ji, Zengkai Liu, Libing Liu, Rikui Zhang, Yuqian Yang, Shitang Liu, Xin Wei
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Patent number: 11293231Abstract: A multi-path combined high-low voltage plasma drilling method, a drill bit for drilling and a drill bit apparatus for drilling utilizing this method. The drilling method includes: disposing a plurality of mutually independent plasma generators on a plasma drill bit, wherein the plasma generators are independently connected to a plasma power source on the ground through wires; allowing each of the plasma generators to eject high-frequency pulsed plasma arc under the control of its corresponding combined high-low voltage pulse power source on the ground; ejecting the high-frequency pulsed plasma arc onto a wall of a drilling well, forming impulsive high temperature thermal shock stress inside the rocks on the wall of the drilling well; and breaking the rocks under the shock of thermal stress to form rock debris.Type: GrantFiled: January 6, 2020Date of Patent: April 5, 2022Assignee: China University of Petroleum (East China)Inventors: Yonghong Liu, Qiang Sun, Qingyun Li, Renjie Ji, Baoping Cai, Xiaopeng Li, Yancong Han, Peng Liu, Xinlei Wu, Hang Dong, Fan Zhang
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Patent number: 11268326Abstract: An embodiment of the present disclosure provides a multi-path combined high-low voltage plasma drilling power source and drilling system. The multi-path combined high-low voltage plasma drilling power source comprises a high-voltage DC circuit, low-voltage DC circuits, high-voltage breakdown modules and an upper computer; wherein the high-voltage DC circuit is connected with the low-voltage DC circuits through cables; the low-voltage DC circuits and the high-voltage breakdown modules simultaneously supply power to plasma generators through cables; the upper computer monitors the low-voltage DC circuits in real time; and the same power source comprises a plurality of low-voltage DC circuits and high-voltage breakdown modules.Type: GrantFiled: January 2, 2020Date of Patent: March 8, 2022Assignee: China University of Petroleum (East China)Inventors: Yonghong Liu, Qiang Sun, Qingyun Li, Renjie Ji, Baoping Cai, Xiaopeng Li, Yancong Han, Hang Dong, Xinlei Wu, Peng Liu, Dege Li
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Patent number: 11243509Abstract: The present disclosure belongs to the field of offshore oil, and in particular relates to a method for assessing the safety integrity level of offshore oil well control equipment. The method for assessing the safety integrity level of the offshore oil well control equipment comprises three major steps: creating a safety instrumented function evaluation module and dividing the related devices for performing the safety instrumented functions into a sensor subsystem; a controller subsystem and an actuator subsystem, establishing a dynamic Bayesian network model for respective subsystems for calculation; and integrating, analyzing and optimizing the safety integrity data of the subsystems.Type: GrantFiled: December 5, 2019Date of Patent: February 8, 2022Assignee: China University of Petroleum (East China)Inventors: Baoping Cai, Yonghong Liu, Wenchao Li, Xiangdi Kong, Xiaoyan Shao, Hongqi Xu, Xincheng Li, Yandong Chen, Renjie Ji, Zengkai Liu, Libing Liu, Rikui Zhang, Yuqian Yang, Shitang Liu, Xin Wei
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Patent number: 11085245Abstract: The present disclosure provides a multi-path combined high-low voltage plasma rock-breaking drill bit, drill bit apparatus and drilling method. The multi-path combined high-low voltage plasma rock-breaking drill bit comprises: a drill bit body, insulators, plasma generators, drilling fluid outlets, plasma integrated pipelines, a drilling fluid pipe; wherein a plurality of plasma generators are distributed on the same drill bit body; the axis of the plasma generator and the axis of the drill bit body form a certain included angle; each of the plasma generators is independently connected to the ground through its respective plasma integrated pipeline and operates independently; and drilling fluid flows out of the drilling fluid outlets, takes away the heat generated by the operation of the plasma generators, thereby cooling the plasma generators.Type: GrantFiled: January 6, 2020Date of Patent: August 10, 2021Assignee: China University of Petroleum (East China)Inventors: Yonghong Liu, Qiang Sun, Qingyun Li, Renjie Ji, Baoping Cai, Xiaopeng Li, Yancong Han, Peng Liu, Dege Li, Xinlei Wu, Fan Zhang
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Publication number: 20210121860Abstract: Method for producing a tertiary amine catalyst comprising reacting a first tertiary amine having two or three hydroxyl moieties and a second tertiary amine having a halogen moiety. Also a method for producing tertiary amine catalysts comprising reacting a tertiary amine having at least two halogen moieties and either (i) a tertiary amine having at least one hydroxyl moiety, or (ii) a heterocyclic compound comprising an amine and an ether functional group.Type: ApplicationFiled: May 14, 2019Publication date: April 29, 2021Inventors: Haibo Zhao, Renjie Ji
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Patent number: 10989019Abstract: The present disclosure belongs to the field of petroleum engineering, in particular to a fully-electrically driven downhole safety valve. The fully-electrically driven downhole safety valve comprises a downhole safety valve mechanism and a downhole safety valve control system; wherein the downhole safety valve mechanism includes an electronic cabin module, a transmission control module, a motion conversion module, a magnetic coupling and spring module. and a valve module; the downhole safety valve control system includes a downhole comprehensive unit and an uphole comprehensive unit.Type: GrantFiled: December 5, 2019Date of Patent: April 27, 2021Assignee: China University of Petroleum (East China)Inventors: Baoping Cai, Yonghong Liu, Chuntan Gao, Chaoyang Sheng, Peng Liu, Xincheng Li, Hongqi Xu, Yandong Chen, Libing Liu, Renjie Ji, Zengkai Liu, Rikui Zhang, Yuqian Yang, Shitang Liu, Xin Wei
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Publication number: 20200370429Abstract: The present disclosure relates to a method and system for evaluating the macro resilience of offshore oil well control equipment. The method for evaluating the macro resilience of offshore oil well control equipment comprises six steps: determining the type and strength of external disaster; calculating the failure rate of components; calculating the recovery rate of the components; modeling the BN for a degradation process; modeling the BN for a maintenance process; and calculating the resilience of the offshore oil well control equipment. A system for evaluating the macro resilience of offshore oil well control equipment comprises an external disaster evaluation module, a component failure rate calculation subsystem, a reliability degradation process simulation module, a fault identification module, a component recovery rate calculation module, a reliability recovery process simulation module, a reliability change curve derivation unit and an resilience calculation unit.Type: ApplicationFiled: December 5, 2019Publication date: November 26, 2020Applicant: China University of Petroleum (East China)Inventors: Baoping CAI, Yonghong LIU, Yanping ZHANG, Chuntan GAO, Xiaoyan SHAO, Hongqi XU, Xincheng LI, Yandong CHEN, Renjie JI, Zengkai LIU, Libing LIU, Rikui ZHANG, Yuqian YANG, Shitang LIU, Xin WEI
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Publication number: 20200370408Abstract: The present disclosure belongs to the field of marine engineering, and in particular relates to a method and system for guaranteeing the safety of offshore oil well control equipment. The method comprises: identifying the state of a main structure of the offshore oil well control equipment, identifying the state of a hydraulic control unit of offshore oil well control equipment, identifying the state of an electronic control unit of offshore oil well control equipment, predicting the state of the offshore oil well control equipment and making a real-time decision based on existing information; and the system for guaranteeing the safety of the offshore oil well control equipment comprises a state identification subsystem of a main structure, a state identification subsystem of the hydraulic control unit, a state identification subsystem of the electronic control unit and a state prediction and real-time decision subsystem.Type: ApplicationFiled: December 5, 2019Publication date: November 26, 2020Applicant: China University of Petroleum (East China)Inventors: Baoping CAI, Yonghong LIU, Chao YANG, Xiangdi KONG, Yi ZHAO, Hongqi XU, Xincheng LI, Yandong CHEN, Renjie JI, Zengkai LIU, Libing LIU, Rikui ZHANG, Yuqian YANG, Shitang LIU, Xin WEI
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Publication number: 20200370394Abstract: The present disclosure belongs to the field of petroleum engineering, in particular to a fully-electrically driven downhole safety valve. The fully-electrically driven downhole safety valve comprises a downhole safety valve mechanism and a downhole safety valve control system; wherein the downhole safety valve mechanism includes an electronic cabin module, a transmission control module, a motion conversion module, a magnetic coupling and spring module. and a valve module; the downhole safety valve control system includes a downhole comprehensive unit and an uphole comprehensive unit.Type: ApplicationFiled: December 5, 2019Publication date: November 26, 2020Applicant: China University of Petroleum (East China)Inventors: Baoping CAI, Yonghong LIU, Chuntan GAO, Chaoyang SHENG, Peng LIU, Xincheng LI, Hongqi XU, Yandong CHEN, Libing LIU, Renjie JI, Zengkai LIU, Rikui ZHANG, Yuqian YANG, Shitang LIU, Xin WEI
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Publication number: 20200371490Abstract: The present disclosure belongs to the field of offshore oil, and in particular relates to a method for assessing the safety integrity level of offshore oil well control equipment. The method for assessing the safety integrity level of the offshore oil well control equipment comprises three major steps: creating a safety instrumented function evaluation module and dividing the related devices for performing the safety instrumented functions into a sensor subsystem; a controller subsystem and an actuator subsystem, establishing a dynamic Bayesian network model for respective subsystems for calculation; and integrating, analyzing and optimizing the safety integrity data of the subsystems.Type: ApplicationFiled: December 5, 2019Publication date: November 26, 2020Applicant: China University of Petroleum (East China)Inventors: Baoping CAI, Yonghong LIU, Wenchao LI, Xiangdi KONG, Xiaoyan SHAO, Hongqi XU, Xincheng LI, Yandong CHEN, Renjie JI, Zengkai LIU, Libing LIU, Rikui ZHANG, Yuqian YANG, Shitang LIU, Xin WEI
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Publication number: 20200224498Abstract: An embodiment of the present disclosure provides a multi-path combined high-low voltage plasma drilling method, a drill bit for drilling and a drill bit apparatus for drilling. The drilling method comprises: disposing a plurality of mutually independent plasma generators on a plasma drill bit, wherein the plasma generators are independently connected to a plasma power source on the ground through wires; allowing each of the plasma generators to eject high-frequency pulsed plasma arc under the control of its corresponding combined high-low voltage pulse power source on the ground; ejecting the high-frequency pulsed plasma arc onto a wall of a drilling well, forming impulsive high temperature thermal shock stress inside the rocks on the wall of the drilling well; and breaking the rocks under the shock of thermal stress to form rock debris.Type: ApplicationFiled: January 6, 2020Publication date: July 16, 2020Inventors: Yonghong LIU, Qiang SUN, Qingyun LI, Renjie JI, Baoping CAI, Xiaopeng LI, Yancong HAN, Peng LIU, Xinlei WU, Hang DONG, Fan ZHANG
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Publication number: 20200217143Abstract: The present disclosure provides a multi-path combined high-low voltage plasma rock-breaking drill bit, drill bit apparatus and drilling method. The multi-path combined high-low voltage plasma rock-breaking drill bit comprises: a drill bit body, insulators, plasma generators, drilling fluid outlets, plasma integrated pipelines, a drilling fluid pipe; wherein a plurality of plasma generators are distributed on the same drill bit body; the axis of the plasma generator and the axis of the drill bit body form a certain included angle; each of the plasma generators is independently connected to the ground through its respective plasma integrated pipeline and operates independently; and drilling fluid flows out of the drilling fluid outlets, takes away the heat generated by the operation of the plasma generators, thereby cooling the plasma generators.Type: ApplicationFiled: January 6, 2020Publication date: July 9, 2020Inventors: Yonghong LIU, Qiang SUN, Qingyun LI, Renjie JI, Baoping CAI, Xiaopeng LI, Yancong HAN, Peng LIU, Dege LI, Xinlei WU, Fan ZHANG
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Publication number: 20200217140Abstract: An embodiment of the present disclosure provides a multi-path combined high-low voltage plasma drilling power source and drilling system. The multi-path combined high-low voltage plasma drilling power source comprises a high-voltage DC circuit, low-voltage DC circuits, high-voltage breakdown modules and an upper computer; wherein the high-voltage DC circuit is connected with the low-voltage DC circuits through cables; the low-voltage DC circuits and the high-voltage breakdown modules simultaneously supply power to plasma generators through cables; the upper computer monitors the low-voltage DC circuits in real time; and the same power source comprises a plurality of low-voltage DC circuits and high-voltage breakdown modules.Type: ApplicationFiled: January 2, 2020Publication date: July 9, 2020Inventors: Yonghong LIU, Qiang SUN, Qingyun LI, Renjie JI, Baoping CAI, Xiaopeng LI, Yancong HAN, Hang DONG, Xinlei WU, Peng LIU, Dege LI
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Patent number: 9970270Abstract: A sand control screen pipe includes couplings, movable spacer bushes, an outer movable radial slotted screen pipe, a split supporting ring and an inner axial slotted screen pipe. In downhole sand control construction work, a movable combined sand control pipe of axial and radial slotted screen pipes is required to be aligned with an oil layer position, this sand control screen pipe adopts the outer radial slotted screen pipe and the inner axial slotted screen pipe for blocking sand, and the outer radial slotted screen pipe can carry out limited axial movement along the inner axial slotted screen pipe and free rotational motion around the axial line of the inner axial slotted screen pipe, so that the controlled sand can be effectively prevented from hardening and an oil leakage channel is kept smooth for a long time to improve the production efficiency of an oil well.Type: GrantFiled: October 20, 2014Date of Patent: May 15, 2018Assignee: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)Inventors: Yonghong Liu, Renjie Ji, Baoping Cai, Quansheng Zhang, Xiaopeng Li, Qingyun Li
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Publication number: 20170218736Abstract: A sand control screen pipe includes couplings, movable spacer bushes, an outer movable radial slotted screen pipe, a split supporting ring and an inner axial slotted screen pipe. In downhole sand control construction work, a movable combined sand control pipe of axial and radial slotted screen pipes is required to be aligned with an oil layer position, this sand control screen pipe adopts the outer radial slotted screen pipe and the inner axial slotted screen pipe for blocking sand, and the outer radial slotted screen pipe can carry out limited axial movement along the inner axial slotted screen pipe and free rotational motion around the axial line of the inner axial slotted screen pipe, so that the controlled sand can be effectively prevented from hardening and an oil leakage channel is kept smooth for a long time to improve the production efficiency of an oil well.Type: ApplicationFiled: October 20, 2014Publication date: August 3, 2017Inventors: Yonghong LIU, Renjie JI, Baoping CAI, Quansheng ZHANG, Xiaopeng LI, Qingyun LI