Patents Assigned to Chengdu University
  • Patent number: 12292411
    Abstract: The provided are a device and method for measuring a bonding strength between a contaminated rock surface and a solidified material. The device includes a fixing and measuring assembly and four rock slabs enclosing a rectangular prism, where outer surfaces of the four rock slabs are fitted to two transverse support plates and two longitudinal support plates, respectively; the two longitudinal support plates are arranged between the two transverse support plates; upper and lower ends of the rock slabs are provided with an upper cover and a bottom plate, respectively; the upper cover and the bottom plate are detachably fixed to the two transverse support plates, respectively; the two transverse support plates are detachably fixed to each other through a second screw; a hydraulic device is provided among the four posts; and a movable end of the hydraulic device is provided with a supporting airbag.
    Type: Grant
    Filed: September 18, 2024
    Date of Patent: May 6, 2025
    Assignee: Chengdu University Of Technology
    Inventors: Jiping She, Yunfei Wang, Furong Gong, Wenjing Ma, Shiyu Zhang, Gege Teng, Huimin Li
  • Patent number: 12277855
    Abstract: A secondary disaster early warning method based on ground-based SAR monitoring of deformation data includes (1) real-time monitoring of a secondary disaster unstable area through ground-based SAR to obtain deformation monitoring data; (2) constructing a displacement-time curve generated by the secondary disaster unstable area over time; setting a monitoring period, and based on the displacement-time curve, constructing a displacement change triangular area model; (3) based on the displacement change triangular area model, constructing an area-time curve, and obtaining the area-time curve change trend and the displacement triangular area in the displacement-time curve according to the monitoring period; (4) dividing the secondary disaster development process into an initial deformation stage, a constant velocity deformation stage, and an accelerated deformation stage; (5) setting early warning levels corresponding to each stage for phased secondary disaster early warning; and (6) quickly and comprehensively id
    Type: Grant
    Filed: September 1, 2024
    Date of Patent: April 15, 2025
    Assignee: Chengdu University of Technology
    Inventors: Xianxuan Xiao, Guojun Cai, Weixi Shao, Mo Xu, Dongpo Wang, Hui Chen, Jian Huang
  • Publication number: 20250108344
    Abstract: The provided are a thickening device and method for uniform solidification of composite lost circulation material made up of liquid and granular lost circulation materials. The thickening device includes a base. The base is provided with a side wall; an upper end of the side wall is provided with a detachable top cover; the base, the side wall, and the top cover form a sealed chamber; the base is provided with a rotating support platform; the rotating support platform is provided with a detachable slurry cup; the slurry cup is provided therein with agitating shafts; the agitating shafts each are provided with a blade; a top end of the agitating shaft is connected to a threaded rod through a ball head connector; an upper end of the agitating shaft is provided with a second gear; and the threaded rod is provided with a second limit platform.
    Type: Application
    Filed: September 26, 2024
    Publication date: April 3, 2025
    Applicant: Chengdu University Of Technology
    Inventors: Jiping SHE, Wenjing MA, Furong GONG, Yunfei WANG, Gege TENG, Shiyu ZHANG, Huimin LI
  • Patent number: 12264544
    Abstract: A downhole traction system includes a driving system and a downhole wheeled tractor. The driving system is connected with the downhole wheeled tractor; the downhole wheeled tractor comprises a tractor body, a power unit and a plurality of traction units; the plurality of traction units are arranged along the extension direction of the tractor body; each of the traction units comprises a driving arm, a supporting arm, a supporting wheel, a driving assembly and a supporting assembly; the driving arm and the supporting arm are movably connected with the tractor body; and the supporting wheel is connected with the driving arm and the supporting arm. When the supporting assembly drives the supporting arm to extend along the radial direction of the tractor body under the hydraulic drive action of the hydraulic power unit, the supporting wheel can be abutted against the well wall.
    Type: Grant
    Filed: November 14, 2023
    Date of Patent: April 1, 2025
    Assignee: Chengdu University of Technology
    Inventors: Jianguo Zhao, Qingyou Liu, Haiyan Zhu, Min Wan, Guorong Wang, Xuecheng Dong, Xu Luo, Yingju Pei, Xingming Wang
  • Patent number: 12263453
    Abstract: The provided are a thickening device and method for uniform solidification of composite lost circulation material made up of liquid and granular lost circulation materials. The thickening device includes a base. The base is provided with a side wall; an upper end of the side wall is provided with a detachable top cover; the base, the side wall, and the top cover form a sealed chamber; the base is provided with a rotating support platform; the rotating support platform is provided with a detachable slurry cup; the slurry cup is provided therein with agitating shafts; the agitating shafts each are provided with a blade; a top end of the agitating shaft is connected to a threaded rod through a ball head connector; an upper end of the agitating shaft is provided with a second gear, and the threaded rod is provided with a second limit platform.
    Type: Grant
    Filed: September 26, 2024
    Date of Patent: April 1, 2025
    Assignee: Chengdu University Of Technology
    Inventors: Jiping She, Wenjing Ma, Furong Gong, Yunfei Wang, Gege Teng, Shiyu Zhang, Huimin Li
  • Patent number: 12265065
    Abstract: The invention provides a fracture opening simulation device for hard brittle mudstone and shale with organic matter, it includes a simulated support, the lower part of the simulated support is connected with a storage bucket bottom block plate through a screw, the middle of the simulated support is provided with a support socket with a circular structure, the upper surface of the storage bucket bottom block plate is provided with a circular convex structure of a block plate boss, the block plate boss is closely inserted in the support socket, the upper surface of the simulated support is fixed connected with a core column storage barrel.
    Type: Grant
    Filed: October 28, 2024
    Date of Patent: April 1, 2025
    Assignee: Chengdu University of Technology
    Inventors: Yiquan Ma, Yangbo Lu, Ziqi Feng, Yongchao Lu, Lei Chen, Wei Wei, Ying Guo, Chen Zhang, Mingyu Zheng, Lan Yang
  • Patent number: 12259227
    Abstract: A method for monitoring large deformation of a surrounding rock of a tunnel based on an automatic targeting and ranging system includes: acquiring, by a camera module, a target monitoring image; identifying a center image position in the target monitoring image; performing, by a laser ranging module, an automatic targeting and ranging task according to the center image position; and calculating a deformation offset of each target of left wall targets, right wall targets and a vault target based on an automatic targeting and ranging result corresponding to the target. The method solves the problem that a laser ranging device fails to measure a target at a fixed angle and obtains a real and accurate deformation offset thereby greatly improving the reliability of the large deformation monitoring result of the surrounding rock of the tunnel.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: March 25, 2025
    Assignee: Chengdu University of Technology
    Inventors: Lubo Meng, Junqi Fan, Guosong Sun, Fuli Kong, Tianbin Li, Xiaoyan Shi, Wei Zhou, Enlai Liu, Xing Zhu
  • Publication number: 20250093244
    Abstract: The provided are a device and method for measuring a bonding strength between a contaminated rock surface and a solidified material. The device includes a fixing and measuring assembly and four rock slabs enclosing a rectangular prism, where outer surfaces of the four rock slabs are fitted to two transverse support plates and two longitudinal support plates, respectively; the two longitudinal support plates are arranged between the two transverse support plates; upper and lower ends of the rock slabs are provided with an upper cover and a bottom plate, respectively; the upper cover and the bottom plate are detachably fixed to the two transverse support plates, respectively; the two transverse support plates are detachably fixed to each other through a second screw; a hydraulic device is provided among the four posts; and a movable end of the hydraulic device is provided with a supporting airbag.
    Type: Application
    Filed: September 18, 2024
    Publication date: March 20, 2025
    Applicant: Chengdu University Of Technology
    Inventors: Jiping SHE, Yunfei WANG, Furong GONG, Wenjing MA, Shiyu ZHANG, Gege TENG, Huimin LI
  • Patent number: 12241876
    Abstract: A borehole wall spin-shearing device includes a load applying assembly, a soil shearing assembly, and a data acquisition assembly, where the load applying assembly is configured to apply a vertical load and an axial rotational load to the soil shearing assembly; the soil shearing assembly includes a plurality of shear plates; the plurality of shear plates are configured to penetrate into undisturbed soil after being ejected due to the vertical load and then shear the undisturbed soil due to the axial rotational load; and the data acquisition assembly is configured to acquire torque values of the plurality of shear plates during a process of shearing the undisturbed soil. The borehole wall spin-shearing device can directly conduct an in-situ borehole shear test in an exploration borehole with a conventional diameter in China, reducing the cost of drilling. The borehole wall spin-shearing device achieves a high degree of automation throughout the test.
    Type: Grant
    Filed: August 5, 2024
    Date of Patent: March 4, 2025
    Assignees: Chengdu University Of Technology, Guangdong Eagler Geological Equipement Technology CO., LTD.
    Inventors: Wenkai Feng, Xiaoyu Yi, Xuyong Liu, Yihe Li, Qian Li, Ke Wan
  • Patent number: 12204067
    Abstract: An automatic recognition method for a dry quasi-stationary front in Kunming, Yunnan, China is provided. The automatic recognition method includes: reading data; calculating, by a differential method, a temperature lapse rate between each layer of each point from a ground surface to 650 hPa, and acquiring a maximum inversion trend value; acquiring an initially selected inversion distribution based on the maximum inversion trend value; removing a nighttime clear sky radiation inversion, retaining only a frontal inversion, and binarizing (0, 1); finding a boundary between inversion and non-inversion; removing the abnormal candidate frontal points, and acquiring frontal nodes; removing meso- and micro-scale systems; and performing one-dimensional Gaussian filtering on longitude data of the frontal nodes, and connecting the filtered frontal nodes to acquire a quasi-stationary front in Kunming, Yunnan, China.
    Type: Grant
    Filed: March 12, 2024
    Date of Patent: January 21, 2025
    Assignee: Chengdu University of Information Technology
    Inventors: Wendong Hu, Yongkai Zhang, Hongping Shu, Yanqiong Hao, Tiangui Xiao, Yan Chen, Fei Luo, Jianhong Gan, Ying Zhang, Xiaohang Wen, Taisong Xiong, Jian Shao, Wenjie Zhou, Balin Xu, Huahong Li, Yixue Deng, Jingyi Tao
  • Patent number: 12197951
    Abstract: A mobile edge computing (MEC) task unloading method with a cache mechanism includes: S1: establishing a task unloading total delay model with a cache mechanism and a mobile device-side total energy consumption model based on a user task request; S2: based on the task unloading total delay model and the mobile device-side total energy consumption model, with a goal of minimizing a task unloading total delay and a mobile device-side total energy consumption, establishing a joint optimization model configured for task unloading and caching and having a constraint; S3: transforming the joint optimization model into a fitness function for a particle, where the user task request is the particle; and S4: determining an optimal solution of the particle by using a particle swarm algorithm based on the fitness function, where the optimal solution of the particle is an optimal task unloading decision of the user task request.
    Type: Grant
    Filed: June 20, 2024
    Date of Patent: January 14, 2025
    Assignee: Chengdu University of Information Technology
    Inventors: Yan Shen, Jiao Chen
  • Patent number: 12180821
    Abstract: A method and system for predicting a maximum build rate of a push-the-bit rotary steering tool is provided. In the method, a mechanical mathematical model of a push-the-bit rotary steering device is combined with measured well inclination data of the rotary steering device during actual drilling, a theoretical maximum build rate of a steering tool is calculated by the mechanical mathematical model, and a correction factor is combined with the mechanical mathematical model to predict a maximum build rate of the steering tool during a drilling operation in a same layer of a same block. The method effectively solves the problem of predicting the maximum build rate of the push-the-bit rotary steering device with different parameter changes based on measured data. Therefore, the method and system provide a reliable means for operators to analyze the performance of the push-the-bit rotary steering device, thereby providing technical support for efficient drilling operations.
    Type: Grant
    Filed: May 15, 2024
    Date of Patent: December 31, 2024
    Assignee: Chengdu University of Information Technology
    Inventors: Jiantao Zhang, Hanbing Yan, Dongxing Qin
  • Patent number: 12110794
    Abstract: Provided is a two-stage reverse-torque bent screw orientation tool. An existing bent screw orientation technology has the technical problems of large friction resistance, difficult control of a borehole track, a low drilling speed and the like, and restricts economic, safe and long-acting development of oil and gas. In order to solve the above problems, the two-stage reverse-torque bent screw orientation tool is invented and composed of a first-stage clutch mechanism and a second-stage clutch mechanism, and the first-stage clutch mechanism and the second-stage clutch mechanism are both composed of a battery, a battery compartment, a pressure sensor, an electromagnetic valve, a body, a plug, a piston, an outer tooth cylinder, an inner tooth cylinder, a transmission cylinder, a connecting cylinder, a bearing, a limiting cylinder, a lower joint, a thrust bearing, a battery compartment, a circuit board, a cover plate and the like.
    Type: Grant
    Filed: September 8, 2023
    Date of Patent: October 8, 2024
    Assignee: Chengdu University of Technology
    Inventors: Qingyou Liu, Jianguo Zhao, Guorong Wang, Haiyan Zhu, Xuecheng Dong, Xingming Wang, Xu Luo, Yingju Pei, Xianwei Dai
  • Publication number: 20240190717
    Abstract: A method for promoting the rapid precipitation of travertine crystals by algae is disclosed. Microalgae is added to a body of water having a calcium ion concentration of 100-500 mg/L and stirred. The amount of microalgae is 0.1-8×108 cells/L. The invention adopts a method for promoting the rapid precipitation of travertine crystals by algae, which significantly improves the sedimentation rate of travertine crystals. At the same time, there are pseudomonas in the calcified water body of algae, which can be used for algae-lysing bacteria isolation and purification.
    Type: Application
    Filed: February 6, 2023
    Publication date: June 13, 2024
    Applicants: Chengdu University of Technology, Jiangnan University, Fudan University
    Inventors: Weizhen ZHANG, Qi LI, Ningfei LEI, Jing ZHANG, Guo LI, Yu LIU, Peng GU, Xiaowei ZHENG, Hanqi WU, Wenhao GAO, Jing LIU, Yunxing XIAO, Qihui LI, Zheng ZHENG
  • Patent number: 11954895
    Abstract: The present disclosure discloses a method for automatically identifying south troughs by improved Laplace and relates to the technical field of meteorology. The method includes the following steps: acquiring grid data of a geopotential height field; calculating a gradient field of the geopotential height field in an x direction; searching for a turning point where a gradient value turned from being negative to being positive, and cleaning the gradient field; calculating a divergence of the x direction to obtain an improved Laplacian numerical value L?; performing 0,1 binarization processing on the L? to obtain a black-and-white image and a plurality of targets of potential troughs, merging the black-and-white image and the plurality of targets of the potential troughs by expansion, recovering original scale through erosion, and selecting an effective target through an angle of direction of a contour and an axial ratio.
    Type: Grant
    Filed: July 20, 2023
    Date of Patent: April 9, 2024
    Assignee: Chengdu University of Information Technology
    Inventors: Wendong Hu, Yanqiong Hao, Hongping Shu, Tiangui Xiao, Yan Chen, Ying Zhang, Jian Shao, Jianhong Gan, Yaqiang Wang, Fei Luo, Huahong Li, Balin Xu, Qiyang Peng, Juzhang Ren, Chengchao Li, Tao Zhang, Xiaohang Wen, Chao Wang, Yongkai Zhang, Wenjie Zhou, Jingyi Tao
  • Patent number: 11912933
    Abstract: The invention provides a suspension modifier directly added into fracturing fluid for real-time proppant modification during fracturing and the application thereof, relating to the field of oil and gas production technologies. The suspension modifier is a controlled release nanoemulsion and comprises surface hydrophobic modifier, surfactant, cosurfactant and water. The suspension modifier is directly added into clear-water or active-water fracturing fluid while the proppant is added into water. After stirring, the suspension modifier is capable of self-assembling and being adsorbed on the proppant surface, so that the proppant surface becomes hydrophobic and aerophilic. The invention no longer requires the proppant to be pretreated, and the bubble-suspended proppant can be obtained directly by adding the suspension modifier to the clear-water or active-water fracturing fluid, and meanwhile adding the proppant to the fracturing fluid.
    Type: Grant
    Filed: October 27, 2023
    Date of Patent: February 27, 2024
    Assignee: Chengdu University of Technology
    Inventors: Bo Yang, Yu Liu, Hao Zhang, Di Yang, Min Ren, Yang Yang, Ying Zhong, Bin Yang, Jiping She
  • Patent number: 11906401
    Abstract: The invention provides a sampling device for geological fluid detection, relates to the technical field of fluid detection. The sampling device comprises a support frame, the support frame is of an L-shaped structure, and a second support plate is arranged at an upper portion of the support frame; the protection cover is mounted at the corner of a bottom portion of the support frame. The water fixing member is clamped above the bottom portion of the support frame; the locking inclined block is mounted at the bottom portion of the; and the detector is provided with a water inlet pipe. Fluid at different depths is detected through cooperation of the mounting sleeve and the lifting frame, a fluid drainage tube is wound around the winding wheel, the mounting sleeve is driven by the lifting frame to adjust the position through the arrangement of the gear and the rack, the fluid is sampled through the sampling test tube.
    Type: Grant
    Filed: July 14, 2023
    Date of Patent: February 20, 2024
    Assignee: Chengdu University of Technology
    Inventors: Chen Zhang, Huaguo Wen, Chao Ma, Jintong Liang, Yiquan Ma, Yixin Dong, Shaohui Wang, Gang Zhou, Yuan Zhong, Wenbin Tang, Bolin Zhang, Yiting Sun, Yunchuan Zeng
  • Publication number: 20240053322
    Abstract: The present disclosure discloses a classification method and system for fine-grained mixed sedimentary rocks, a medium and a terminal. Core description and thin section observation are used to accurately identify the sedimentary structure types and their vertical distribution characteristics from the macroscopic and microscopic perspectives, and indicates the mixed sedimentation characteristics of combination of different lamina or laminar couplets. The micro-drilling sampling technique is used to sample the samples with different types of sedimentary structures while avoiding diagenetic minerals. X-ray diffraction mineral content analysis and a high-precision carbon-sulfur analyzer are used to obtain the contents of different types of minerals and the total organic carbon contents in each sample, respectively, the basic rock type of each sample was determined using a triangular classification diagram.
    Type: Application
    Filed: August 1, 2023
    Publication date: February 15, 2024
    Applicant: Chengdu University of Technology
    Inventors: Yiquan MA, Xiaofeng LIU, Yangbo LU, Yongchao LU, Chen ZHANG, Xuebin DU, Zhanhong LIU, Wei WEI, Yi SHU, Jingyu ZHANG, Ke ZHAO, Qinyu CUI, Hao WANG, Xiaojie FAN, Caiguang ZHI, Mengtian GAO, Lingna SHI
  • Patent number: 11892432
    Abstract: The present invention provides a multifunctional rock mechanics tester, pertaining to the technical field of mechanics tester, consisting of a base; wherein a power mechanism is mounted on the top of the base, two tension testing mechanisms are arranged on the power mechanism in an up-and-down symmetrical way, a clamping mechanism is mounted on each tension testing mechanism, a rock testing block is clamped between the two clamping mechanisms. The present invention realizes the tension and pressure testing of the rock test block through the arrangement of tension testing mechanism and pressure testing mechanism, thus improving the functionality of the present mechanics tester, which not only reduces the testing cost, but also effectively decreases the occupied space; the present invention solves the problem that the traditional mechanics tester can only complete one kind of test when it is used.
    Type: Grant
    Filed: July 25, 2023
    Date of Patent: February 6, 2024
    Assignee: Chengdu University of Technology
    Inventors: Chen Zhang, Huaguo Wen, Chao Ma, Jintong Liang, Yiquan Ma, Yixin Dong, Xiangye Kong, Xin Wang, Shaohui Wang, Gang Zhou, Yuan Zhong, Wenbin Tang, Jing Nie, Bolin Zhang, Yunchuan Zeng
  • Patent number: 11892380
    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.
    Type: Grant
    Filed: April 12, 2023
    Date of Patent: February 6, 2024
    Assignee: Chengdu University of Technology
    Inventors: Muhao Zhang, Wei Chen, Suyi Zhang, Xu Zhang, Xiaoqiang He, Shuhua Ding, Yugao Ma