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公开(公告)号：US10415374B2
公开(公告)日：2019-09-17
申请号：US15922937
申请日：2018-03-16
Applicant: Southwest Petroleum University , Haohan Well Completion & Logging Science and Technology Limited Company
Inventor： Xingyu Chen , Yingfeng Meng , Gao Li , Yijian Chen , Yang Wang , Lunping Zhang
Abstract: A logging-while-drilling optical fiber communication device includes a rotary wireless transceiver module fixed on a protective connector; an active antenna of the rotary transceiver is placed in the first drill pipe by drilling hole through the protective connector; an optical fiber communication drawworks is located at the top of a second drill pipe, the optical fiber is downwardly released into other under-well drill pipes, the bottom of the optical fiber is connected with the well-bottom wireless receiving module; the lowest part of the drill pipe are provided with a drilling data acquisition device and a well-bottom wireless transmitting module. In the present invention, the optical fiber cable is used as transmission medium, by the means of modulating information data obtained by well logging into optical wave, and transmitting to the optical communication link, high-speed bi-directional transmission of well logging information can be realized.
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公开(公告)号：US11054351B2
公开(公告)日：2021-07-06
申请号：US16305943
申请日：2017-09-27
Applicant: SOUTHWEST PETROLEUM UNIVERSITY
Abstract: A strain and acoustic wave testing device includes an acoustic wave transmitting terminal, an upper pressure-bearing shaft, corundum ejector pins, an upper displacement slide, a lower displacement slide, a heat insulation shell, a carbon fiber sleeve, a rock sample, a lower pressure-bearing shaft, an acoustic wave receiving terminal, a lower copper electrode, pearl powder, a temperature sensor, a transformer, a temperature-acoustic wave control box, an oscilloscope, an upper copper electrode, and a data collection and processing system.
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公开(公告)号：US12276166B2
公开(公告)日：2025-04-15
申请号：US18446810
申请日：2023-08-09
Applicant: Southwest Petroleum University
Inventor： Hongtao Li , Yingfeng Meng , Gao Li , Yijian Chen
Abstract: A device for preventing abrupt blockage in a blooie line of gas drilling includes a sand-storing tank body, which is connected to a rotating blowout preventer through a guiding tube, and a guiding three-way joint is set between the guiding tube and the sand-storing tank body and connected to the blooie line by a vertical guiding tube; the sand-storing tank body is connected to the blooie line by means of a gas discharge tube; a flap plate assembly is arranged at the position fronting straight onto the guiding three-way joint inside the sand-storing tank body, and configured to control the rock particles in the guiding tube to enter the sand-storing tank body, preventing blockage in the blooie line.
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公开(公告)号：US12024961B2
公开(公告)日：2024-07-02
申请号：US18151915
申请日：2023-01-09
Applicant: Southwest Petroleum University
Inventor： Gao Li , Hongtao Li , Yijian Chen , Dong Xiao , Jun Jiang , Wenhe Xia , Yongjie Li
Abstract: A remote intelligent active drilling pressure control system and method. The system includes a drilling pump, a rotary blowout preventer, a ground simple throttle control manifold, a wellhead back pressure compensation manifold, a graded filling device, a downhole storage-type pressure measuring device, a ground multi-parameter online monitoring system, a drilling hydraulic calculation system, an MPD intelligent control platform and a remote monitoring and control system. The present invention provides a wellbore pressure control thought of “plugging and control integration”, improves the pressure resistance of a formation by circularly plugging while drilling, realizes active control of a wellbore pressure, effectively broadens a “drilling safety density window” of the formation, and reduces the requirements on the pressure control precision of a wellbore pressure control device.
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公开(公告)号：US20230235635A1
公开(公告)日：2023-07-27
申请号：US18151915
申请日：2023-01-09
Applicant: Southwest Petroleum University
Inventor： Gao Li , Hongtao Li , Yijian Chen , Dong Xiao , Jun Jiang , Wenhe Xia , Yongjie Li
Abstract: A remote intelligent active drilling pressure control system and method. The system includes a drilling pump, a rotary blowout preventer, a ground simple throttle control manifold, a wellhead back pressure compensation manifold, a graded filling device, a downhole storage-type pressure measuring device, a ground multi-parameter online monitoring system, a drilling hydraulic calculation system, an MPD intelligent control platform and a remote monitoring and control system. The present invention provides a wellbore pressure control thought of “plugging and control integration”, improves the pressure resistance of a formation by circularly plugging while drilling, realizes active control of a wellbore pressure, effectively broadens a “drilling safety density window” of the formation, and reduces the requirements on the pressure control precision of a wellbore pressure control device.
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Patent Agency Ranking
公开(公告)号：US11668191B2
公开(公告)日：2023-06-06
申请号：US17394071
申请日：2021-08-04
Applicant: SOUTHWEST PETROLEUM UNIVERSITY
Inventor： Ping Guo , Zhouhua Wang , Yijian Chen , Bowen Sun , Chao Dong , Yisheng Hu , Shuoshi Wang
CPC classification number: E21B49/088 , E21B49/005 , E21B49/0875 , G01N30/02 , G01N33/241 , G01N33/2823 , E21B2200/20 , G01N2030/025
Abstract: A device for testing the three-phase saturation of oil, gas and water in a high-temperature and high-pressure planar model includes a displacement pump, a confining pressure pump, a back pressure pump, containers, a planar model system, a data acquisition system, a back pressure valve and an oil-gas separator. The planar model system includes a planar model, an autoclave body, a heating temperature-controlling system, a Y-axis direction stepping motor, a X-axis direction stepping motor and an acoustoelectric detector. A method for testing the three-phase saturation of oil, gas and water by using the device includes calibrating three-phase saturation of oil, gas and water to a rock core, preparing a formation water sample and a crude sample, regaining the original formation conditions of the planar model, simulating the depletion or displacement process of oil reservoirs, performing linear ultrasonic-and-resistivity-scanning test on planar model, determining the three-phase saturation distribution of oil, gas and water.
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公开(公告)号：US10364184B2
公开(公告)日：2019-07-30
申请号：US15749780
申请日：2017-02-14
Applicant: SOUTHWEST PETROLEUM UNIVERSITY
Inventor： Ping Guo , Shuai Wu , Yijian Chen , Huimin Zhang , Wanbo Zhang , Yuhong Du , Zhouhua Wang , Jianfen Du , Yisheng Hu , Huang Liu , Hongmei Ren
IPC: C04B20/10 , C04B28/04 , C04B14/04 , C04B40/00 , G01N1/28 , C04B14/06 , B28B7/38 , C04B111/00 , C09K8/46
Abstract: A manufacturing method of a big-model low-permeability microcrack core includes: (1) determining the size of a microcrack core to be manufactured; (2) placing stones in a baking oven to bake for 24h under 120° C., placing the stones into a mixer, mixing and spraying oil, enabling the oil to seep into the stone, evenly forming a thin oil film on stone's surface; (3) mixing the oil sprayed stone with quartz sand and cement, adding water to mix evenly to obtain cement paste; (4) spreading butter on core mold's inner surface to form a thin butter film, pouring the cement paste into the core mold to obtain a cement sample; (5) loading confining pressure outside the core according to the requirements of porosity and permeability of the mold to adjust a pore permeability value; (6) obtaining the big-model core with microcrack after the cement sample is dried and formed.
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公开(公告)号：US20240052713A1
公开(公告)日：2024-02-15
申请号：US18446810
申请日：2023-08-09
Applicant: Southwest Petroleum University
Inventor： Hongtao Li , Yingfeng Meng , Gao Li , Yijian Chen
Abstract: A device for preventing abrupt blockage in blooie line of gas drilling includes a sand-storing tank body, which is connected to a rotating blowout preventer through a guiding tube, and a guiding three-way joint is set between the guiding tube and the sand-storing tank body and connected to a blooie line by a vertical guiding tube; the sand-storing tank body is connected to the blooie line by means of a gas discharge tube; a flap plate assembly is arranged at the position fronting straight onto the guiding three-way joint inside the sand-storing tank body, and configured to control the rock particles in the guiding tube to enter the sand-storing tank body, preventing blockage in the blooie line. The device can effectively solve the technical problem that the process of gas drilling for oil-and-gas exploration and development is prone to abruptly block the blooie line.
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公开(公告)号：US11713674B2
公开(公告)日：2023-08-01
申请号：US17952351
申请日：2022-09-26
Applicant: Southwest Petroleum University , Haohan Well Completion & Logging Science and Technology Limited Company
Inventor： Xingyu Chen , Yingfeng Meng , Gao Li , Yijian Chen , Hongtao Li , Lunping Zhang , Kejing Wang
CPC classification number: E21B47/18 , E21B34/066
Abstract: A pressure pulse communication system and method during gas drilling are provided. The system includes a downhole solenoid valve module and a sensor module, where the downhole solenoid valve module includes a valve body, a gas inlet, a piston micro-hole, a moving piston, a piston return spring, a piston cylinder, a gas outlet, a piston pressure relief hole, a solenoid valve spring, a solenoid valve, a battery, a pressure balancer, and a rubber seal. The pressure pulse communication system and method generate pressure pulses by changing the internal pressure of a drill pipe, such that a surface pressure sensor continuously receives the pressure pulses, thereby achieving the purpose of acquiring downhole temperature, pressure, and well inclination angle data.
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公开(公告)号：US11371962B1
公开(公告)日：2022-06-28
申请号：US17646151
申请日：2021-12-28
Applicant: Southwest Petroleum University , Haohan Well Completion & Logging Science and Techonlogy Limited Company
Inventor： Yijian Chen , Xingyu Chen , Gao Li , Lunping Zhang , Chaofan Tu , Yunsheng Chen , Kejing Wang
Abstract: A multi-frequency acoustic velocity measurement device for a core includes: a fixing device, for fixing a core and heating and pressurizing the core according to a preset condition; a transmitting end acoustic wave probe, connected to a first end of a control unit and one end of the fixing device, and configured to transmit an acoustic wave signal to the core; a receiving end acoustic wave probe, connected to a second end of the control unit and the other end of the fixing device, and configured to receive the acoustic wave signal transmitted by the transmitting end acoustic wave probe; and the control unit, for controlling the transmitting end acoustic wave probe to transmit acoustic wave signals of different frequencies, receiving the acoustic wave signal received by the receiving end acoustic wave probe, and determining an acoustic velocity of the core according to the acoustic wave signal.
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