Patents by Inventor Yequan Chen

Yequan Chen 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: 20250180775
    Abstract: An approach for calibrating prestack seismic inversion is provided. This method includes selecting various features from inverted elastic properties to generate reservoir properties; fully connected neural network models are used to learn the mapping between the features and ground truth data at well locations; and the prediction is applied to generate one or more final models for the reservoir characterization of the whole survey region.
    Type: Application
    Filed: December 5, 2023
    Publication date: June 5, 2025
    Inventors: Yi TAO, Jianhua YU, Jianxing HU, Yequan CHEN
  • Patent number: 12320944
    Abstract: An approach for calibrating prestack seismic inversion is provided. This method includes selecting various features from inverted elastic properties to generate reservoir properties; fully connected neural network models are used to learn the mapping between the features and ground truth data at well locations; and the prediction is applied to generate one or more final models for the reservoir characterization of the whole survey region.
    Type: Grant
    Filed: December 5, 2023
    Date of Patent: June 3, 2025
    Assignee: CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Yi Tao, Jianhua Yu, Jianxing Hu, Yequan Chen
  • Publication number: 20240264320
    Abstract: A method and system for generating and displaying a low frequency model for a seismic survey region are provided. The method and system may include defining a seismic survey geometry of the seismic survey region; processing seismic data to generate a stacked seismic data and well log data to obtain elastic attributes; importing stacked seismic data and processed well log data into the defined seismic survey geometry; generating envelope data using the stacked seismic data; generating a low frequency trace for each well; calculating a least-squares optimized coefficient model at each well location based upon the generated envelope data and the low frequency trace for each well; interpolating the coefficient model to the seismic survey geometry using a covariance technique and the imported stacked seismic data; and generating a three-dimensional low frequency model by inversion using the envelope data and the interpolated coefficient model for display.
    Type: Application
    Filed: February 8, 2023
    Publication date: August 8, 2024
    Inventors: Yequan CHEN, Fan XIA
  • Patent number: 12050294
    Abstract: A method and system for generating and displaying a low frequency model for a seismic survey region are provided. The method and system may include defining a seismic survey geometry of the seismic survey region; processing seismic data to generate a stacked seismic data and well log data to obtain elastic attributes; importing stacked seismic data and processed well log data into the defined seismic survey geometry; generating envelope data using the stacked seismic data; generating a low frequency trace for each well; calculating a least-squares optimized coefficient model at each well location based upon the generated envelope data and the low frequency trace for each well; interpolating the coefficient model to the seismic survey geometry using a covariance technique and the imported stacked seismic data; and generating a three-dimensional low frequency model by inversion using the envelope data and the interpolated coefficient model for display.
    Type: Grant
    Filed: February 8, 2023
    Date of Patent: July 30, 2024
    Assignee: CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Yequan Chen, Fan Xia
  • Patent number: 11573347
    Abstract: A computing program product and method for interpolating wavelets coefficients and estimating spatial varying wavelets using the covariance interpolation method in the data space over a survey region having multiple well locations, are disclosed. The method and computing program product, embodied in a non-transitory computer readable device, that stores instructions for performing by a device are based on interpolating coefficient models in the data space domain using covariance analysis methods to overcome inaccuracy and instability issues commonly observed during wavelet estimation and interpolation.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: February 7, 2023
    Assignee: CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Yequan Chen, Fan Xia
  • Publication number: 20220350044
    Abstract: A computing program product and method for interpolating wavelets coefficients and estimating spatial varying wavelets using the covariance interpolation method in the data space over a survey region having multiple well locations, are disclosed. The method and computing program product, embodied in a non-transitory computer readable device, that stores instructions for performing by a device are based on interpolating coefficient models in the data space domain using covariance analysis methods to overcome inaccuracy and instability issues commonly observed during wavelet estimation and interpolation.
    Type: Application
    Filed: April 30, 2021
    Publication date: November 3, 2022
    Applicant: China Petroleum & Chemical Corporation
    Inventors: Yequan Chen, Fan Xia