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公开(公告)号：US20250036717A1
公开(公告)日：2025-01-30
申请号：US18911883
申请日：2024-10-10
Applicant: Chengdu University of Technology
Inventor： Zhongli ZHOU , Ran ZHOU , Changjie CAO , Bingli LIU , Yunhui KONG , Cheng LI , Yueyun LIU
IPC: G06F17/16 , G06N3/09 , G06V10/764 , G06V10/77 , G06V10/774 , G06V10/776
Abstract: A robust nonnegative matrix factorization (RNMF) method, in which an image sample set is split into a training set and a test set. The training set and the test set are normalized to map the image data from [0, 255] to [0, 1]. The training set matrix is pretrained by RNMF for decomposition. l2,1-deep incremental nonnegative matrix factorization (l2,1-DINMF) model is construed. The l2,1-DINMF model is configured to decompose the training set matrix into l+1 factors. After the basis matrix has been updated, and the samples of the training set and samples to be recognized are projected into a feature space. Feature representations of the test set are classified by a trained SVM classifier to obtain a predicted label, and the predicted label is compared with an actual label of the test set to calculate a recognition accuracy.
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公开(公告)号：US20250035813A1
公开(公告)日：2025-01-30
申请号：US18783323
申请日：2024-07-24
Applicant: Chengdu University of Technology
Inventor： Kesai Li , Jiaqi Sun , Hucheng Deng , Xianhong He , Zehou Xiang , Hangjie Lin , Yanjun Liu , Jianhua He , Yan Liu , Kaicheng Lei , Shuoshuo Zhan , Hong Li
IPC: G01V11/00
Abstract: Disclosed is an invasion correction method and system for resistivity logging. The method includes the steps of: analyzing mud filtrate invasion features based on an actual resistivity logging curve; determining an invasion mechanism, and performing forward modeling on a resistivity logging response; performing inversion by a random forest method to form a correction chart; and outputting a formation resistivity to finally form the invasion correction method and system for resistivity logging. In the present disclosure, double lateral correction under an invasion condition is accomplished, while a chart method and an inversion method are combined, ensuring the accuracy and operating rate of correction.
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公开(公告)号：US20240427053A1
公开(公告)日：2024-12-26
申请号：US18775694
申请日：2024-07-17
Applicant: Chengdu University of Technology
Inventor： Bing ZHANG , Yuyong YANG , Xiaoyang LIN , Qian LI , Zhengyang WANG , Kai YANG , Zhuo LI , Xiaolong HE
Abstract: A method for identifying high-quality lithium-potassium-rich brine reservoirs based on parameter sensitivity analysis is provided. Basic characteristics of a brine reservoir area are determined. The sensitive parameter analysis of the brine reservoir area is performed by rock physics modeling and cross-plotting of logging curves to determine a rock physics parameter range and a logging parameter range of the brine reservoir area. The relationship between the wave impedance and the water saturation based on the rock physics model. A coordinate range of a water-rich reservoir is determined based on the inversion result of the water saturation. Within the coordinate range of the water-rich reservoir, a coordinate range of the lithium-potassium-rich brine reservoir is determined based on the natural gamma inversion result obtained by waveform phase-controlled inversion, so as to achieve geophysical identification and prediction of high-quality brine reservoirs in the marine strata.
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公开(公告)号：US20240427043A1
公开(公告)日：2024-12-26
申请号：US18762513
申请日：2024-07-02
Applicant: Chengdu University of Technology
Inventor： Yuyong YANG , Li YOU , Chuan LUO , Zhengyang WANG , Huailai ZHOU
IPC: G01V1/30
Abstract: A geological structure characterization method based on a seismic velocity signal and a seismic acceleration signal is provided. The seismic acceleration signal and the seismic velocity signal are acquired and normalized. Constant-phase wavelet and minimum-phase wavelet extraction or mixed-phase wavelet extraction is performed. In the constant-phase wavelet and minimum-phase wavelet extraction, a first minimum-phase wavelet is extracted based on the seismic velocity signal, and a constant-phase wavelet is extracted based on the seismic acceleration signal, and converted to a second minimum-phase wavelet. A residual between the first minimum-phase wavelet and the second minimum-phase wavelet is calculated. If the residual is greater than a preset threshold, the constant-phase wavelet extraction is performed again, otherwise, the first minimum-phase wavelet and the constant-phase wavelet are output.
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5.发明公开公开(公告)号：US20240310861A1
公开(公告)日：2024-09-19
申请号：US18418172
申请日：2024-01-19
Applicant: Chengdu University of Technology
Inventor： Jianguo ZHAO , Penghui LIANG , Qingyou LIU , Guorong WANG , Haotian ZHENG , Hanxiu PENG , Min WAN , Gang HU , Xu LUO , Yingju PEI , Xingming WANG , Xianwei DAI , Xuanhe TANG , Lei TAO
CPC classification number: G05D7/0623 , G05B13/041 , G05D7/0635
Abstract: A method, an apparatus and a system for automatically adjusting an opening degree of a fluid control valve, relating to the technical field of oil and gas exploration and development. The method includes: establishing a fluid control valve having an orifice structure in oil and gas production; using a numerical simulation method to obtain the influence law of minimum opening degree adjustment step on oil and gas production; obtaining relevant production test data of the oil and gas well, and calculating the total oil and gas production and the oil and gas production of each production layer based on the production test data of the oil and gas well; dividing the production layer segments into high, middle and low-production layers according to the production ratio of each production layer segment; respectively calculating the average productions of the high, middle and low-production layers.
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Patent Agency Ranking
公开(公告)号：US12084367B2
公开(公告)日：2024-09-10
申请号：US18028575
申请日：2022-09-21
Applicant: CHENGDU UNIVERSITY OF TECHNOLOGY
Inventor： Shengyan Pu , Hui Ma , Dong Yu , Shibin Liu , Peng Wang , Bowen Li , Xin Wang , M Chen , Tao Zhang , Jinsong Chen , Qiang Tang
IPC: C02F3/00 , C02F3/28 , C02F103/06
CPC classification number: C02F3/005 , C02F3/2806 , C02F3/2866 , C02F2103/06 , C02F2201/46115 , C02F2203/006
Abstract: The disclosure relates to a staggered electrode bio-electro-Fenton groundwater circulation well system, including a groundwater circulation well, a water pumping and injecting assembly and an in-well bio-electro-Fenton assembly. The water pumping and injecting assembly is configured to realize water pumping and injection between different screening sections of the groundwater circulation well. The bio-electro-Fenton assembly arranged in a first screening section of the groundwater circulation well includes at least one electrode device. A cathode and an anode of the electrode device form a spatially staggered arrangement according to different distribution areas. According to the disclosure, the spatially staggered arrangement of the cathode and the anode, the influence of oxygen on an anaerobic environment of an anode chamber in the electrode device is greatly reduced while ensuring the cathode takes oxygen as an electron acceptor, and the constructed bio-electro-Fenton system can accelerate the decomposition of organic pollutants in the groundwater circulation well.
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公开(公告)号：US20240159054A1
公开(公告)日：2024-05-16
申请号：US17987187
申请日：2022-11-15
Applicant: Chengdu University of Technology
Inventor： Xiao HU , Zhenlin Chen
IPC: E04C3/34
CPC classification number: E04C3/34
Abstract: The present application relates to a circumferentially pre-loaded concrete-filled steel tubular column, including a steel tube formed from a plurality of steel sheets with two flanges formed at two opposite sides of each of the steel sheets, respectively, and defined with bolt holes therein; and a concrete core provided in the steel tube. Every two adjacent steel sheets are connected with each other by bolts passing through corresponding bolt holes in two adjacent flanges to form the circumferentially pre-loaded concrete-filled steel tubular column.
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公开(公告)号：US11912595B2
公开(公告)日：2024-02-27
申请号：US18112588
申请日：2023-02-22
Applicant: CHENGDU UNIVERSITY OF TECHNOLOGY
Inventor： Shengyan Pu , Hui Ma , Yuming He , Xiaoguang Wang , Guangyong Zeng , Yi Chen , Dong Yu , Wenwen Ji
Abstract: The present invention relates to a groundwater circulation well system with pressure-adjustable hydrodynamic cavitation, including a circulation well body, a sucked and injected water circulation assembly and a hydrodynamic cavitator. The sucked and injected water circulation assembly is based on a water suction and injection pump. The hydrodynamic cavitator is provided, inside a vortex chamber, with a vortex water inlet column capable of changing a water passing aperture. The hydrodynamic cavitator is capable of changing a bubbling pressure and a breaking pressure of hydrodynamic cavitation bubbles in the vortex water inlet column. The hydrodynamic cavitator generates vortices in the circulation well body to accelerate uniform mixing of a remediation agent and the groundwater. Energy from collapsing and bursting of the hydrodynamic cavitation bubbles activates the remediation agent such that contaminants in the groundwater are efficiently degraded.
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公开(公告)号：US11892380B1
公开(公告)日：2024-02-06
申请号：US18133540
申请日：2023-04-12
Applicant: Chengdu University of Technology
Inventor： Muhao Zhang , Wei Chen , Suyi Zhang , Xu Zhang , Xiaoqiang He , Shuhua Ding , Yugao Ma
IPC: G01M99/00
CPC classification number: G01M99/002 , F28F2200/005
Abstract: The present disclosure provides a heat transfer limit experimental device of a high-temperature heat pipe equipped with a convenient temperature measurement box and a method based on the heat transfer limit experimental device. The heat transfer limit experimental device includes a high-temperature heat pipe, an electric heating system, a convenient temperature measurement box, a control system, a gas-cooled heat exchange system, and a data acquisition system. The electric heating system is connected to the high-temperature heat pipe. The convenient temperature measurement box is connected to the gas-cooled heat exchange system. The data acquisition system is connected to the gas-cooled heat exchange system, the convenient temperature measurement box, and the electric heating system. The control system is connected to the gas-cooled heat exchange system, the convenient temperature measurement box, and the electric heating system. The high-temperature heat pipe is disposed inside the convenient temperature measurement box.
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公开(公告)号：US20240024936A1
公开(公告)日：2024-01-25
申请号：US18203767
申请日：2023-05-31
Applicant: CHENGDU UNIVERSITY OF TECHNOLOGY
Inventor： SHENGYAN PU , PENG WANG , SHIBIN LIU , XIN WANG , HUI MA , PEI AN
CPC classification number: B09C1/08 , B09C1/10 , C02F3/34 , C02F3/28 , B09C2101/00 , C02F2103/06
Abstract: The invention relates to a method for microbial remediation of underground water petroleum hydrocarbon contamination by regulating soil buffer capability, which comprises detecting the soil particle size of contaminated site soil, dividing the contaminated site soil into coarse-grained soil and fine-grained soil; dividing the contaminated site soil into high buffer capacity soil and low buffer capacity soil; and adjusting the composition and ratio of a biostimulant solution added to the contaminated site soil based on the classification of the contaminated site soil. The detecting step includes classifying soil with a particle size between 0.075 mm and 60 mm and a mass greater than or equal to 50% of the total mass as coarse-grained soil; and classifying soil with a particle size not greater than 0.075 mm and a mass greater than or equal to 50% as fine-grained soil.
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