Patents by Inventor Mingqiang Wei

Mingqiang Wei 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).

  • Publication number: 20240159692
    Abstract: The present invention discloses a device and method for measuring the relative permeability of propped fractures in shale considering probability distribution, comprising a gas cylinder, a water pump, a booster pump, a rock slab holder, a differential pressure sensor, a directional X-ray source, an X-ray detector, an X-ray shielding box, a tee, a liquid meter, a gas meter, an electronic balance, and a vacuum pump; the inlet of rock slab holder is respectively connected with the gas cylinder and the water pump by the pipe, the outlet is connected with the liquid meter and the vacuum pump by the tee, and the differential pressure sensor is connected with both ends of the rock slab holder; the booster pump is connected with the rock slab holder by the pipe; the inlet of the gas meter is connected with the liquid meter, and the outlet is connected to the external atmosphere.
    Type: Application
    Filed: December 30, 2022
    Publication date: May 16, 2024
    Applicant: Southwest Petroleum University
    Inventors: Zhenglan LI, Yonggang DUAN, Mingqiang WEI, Quantang FANG, Le LUO, Keyi REN, Lei MENG, Shuxin LI, Zhihong NIE
  • Patent number: 11747260
    Abstract: The invention discloses a digital imaging technology-based method for calculating relative permeability of tight core, comprising the following steps: step S1: preparing a small column sample of tight core satisfying resolution requirements; step S2: scanning the sample by MicroCT-400 and establish a digital core; step S3: performing statistical analysis on parameters reflecting the characteristics of rock pore structure and shape according to the digital core; step S4: calculating tortuosity fractal dimension DT and porosity fractal dimension Df by a 3D image fractal box dimension algorithm; step S5: performing statistical analysis on maximum pore equivalent diameter ?max and minimum pore equivalent diameter ?min by a label. The present invention solves the problems of time consumption of experiment, instrument accuracy, incapability of repeated calculation simulations and resource waste by repeated physical experiment.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: September 5, 2023
    Assignee: SOUTHWEST PETROLEUM UNIVERSITY
    Inventors: Yonggang Duan, Zhenglan Li, Quantang Fang, Mingqiang Wei, Yu Peng, Shihao Wei, Zijian Wu, Shuyao Sheng
  • Patent number: 11513051
    Abstract: The present invention discloses a shale stress sensitivity testing device and method. The testing device comprises a support table. The left and right ends of the upper surface of the support table are respectively provided with a left side plate and a right side plate. The top of the left and right side plates are connected with the left and right ends of the top plate. The chucks of the clamps are capable of reciprocating motion in the horizontal direction and circular motion in the front-rear direction. The present invention can change the intensity and direction of the effective stress of the rock sample, and determine the permeability of the rock sample under different effective stresses, thus enabling comprehensive testing of the stress sensitivity of shale in different directions and enhancing the accuracy of shale stress sensitivity testing.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: November 29, 2022
    Assignee: Southwest Petroleum University
    Inventors: Mingqiang Wei, Yonggang Duan, Quantang Fang, Zhenglan Li, Le Luo, Keyi Ren, Xin Wang, Shuxin Li, Zhihong Nie
  • Publication number: 20210071518
    Abstract: The present invention discloses a method for interpreting and evaluating production profile of multi-layer gas reservoir based on downhole distributed temperature monitoring, including: obtaining downhole distributed temperature monitoring data of target well; preprocessing the downhole distributed temperature monitoring data; segmenting the temperature monitoring data according to test curve characteristics of the target well and logging interpretation results; using a multi-layer gas reservoir seepage pressure field—temperature field coupled model to calculate temperatures of each layer in the borehole production profile of the target well by numerical simulation method; comparing the temperatures of each layer of the borehole production profile with the temperature monitoring data after segmentation, obtaining the optimal flow rate of each production layer with optimization theories, and obtaining the production profile of the target well based on the optimal flow rate of each production layer.
    Type: Application
    Filed: October 30, 2020
    Publication date: March 11, 2021
    Applicant: SOUTHWEST PETROLEUM UNIVERSITY
    Inventors: Mingqiang Wei, Yonggang Duan, Hao Liang, Muwang Wu, Ruiduo Zhang, Zijian Wu, Shihao Wei, Shuyao Sheng, Tao Yue, Xu Chen, Yihe Du, Tengyi Long
  • Publication number: 20210047925
    Abstract: The invention discloses a digital imaging technology-based method for calculating relative permeability of tight core, comprising the following steps: step S1: preparing a small column sample of tight core satisfying resolution requirements; step S2: scanning the sample by MicroCT-400 and establish a digital core; step S3: performing statistical analysis on parameters reflecting the characteristics of rock pore structure and shape according to the digital core; step S4: calculating tortuosity fractal dimension DT and porosity fractal dimension Df by a 3D image fractal box dimension algorithm; step S5: performing statistical analysis on maximum pore equivalent diameter ?max and minimum pore equivalent diameter ?min by a label. The present invention solves the problems of time consumption of experiment, instrument accuracy, incapability of repeated calculation simulations and resource waste by repeated physical experiment.
    Type: Application
    Filed: November 3, 2020
    Publication date: February 18, 2021
    Applicant: SOUTHWEST PETROLEUM UNIVERSITY
    Inventors: Yonggang Duan, Zhenglan LI, Quantang Fang, Mingqiang Wei, Yu Peng, Shihao Wei, Zijian Wu, Shuyao Sheng