Patents by Inventor Lewis LI

Lewis LI 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: 20240069860
    Abstract: A voice-controlled question answering system that is capable of answering questions using both a knowledge base and a search engine. The knowledge base is used to answer questions when answers to those questions are contained in the knowledge base. If an answer using the knowledge base is unavailable, and if the question is suitable for answering using an unstructured search approach, the system may obtain an answer using a search engine. The search engine results may be processed to obtain an answer to the question suitable for output using a voice user interface.
    Type: Application
    Filed: June 29, 2023
    Publication date: February 29, 2024
    Inventors: Daniel Lewis Spector, Fergus O'Donoghue, Chase Wesley Brown, JR., Shayne Leon Snow, Brandon Gerald Li Horst, William Folwell Barton
  • Publication number: 20230349277
    Abstract: Subsurface representations that define subsurface configurations in layer space are used to train a machine learning model. The trained machine learning model is used to generate synthetic subsurface representations in the layer space. The synthetic subsurface representations are generated to match one or more conditioning characteristics. Conditioning of the trained machine learning model is performed in latent space.
    Type: Application
    Filed: April 29, 2022
    Publication date: November 2, 2023
    Inventors: Lewis Li, Tao Sun
  • Patent number: 11604909
    Abstract: A computational stratigraphy model may be run for M mini-steps to simulate changes in a subsurface representation across M mini-steps (from 0-th subsurface representation to M-th subsurface representation), with a mini-step corresponding to a mini-time duration. The subsurface representation after individual steps may be characterized by a set of computational stratigraphy model variables. Some or all of the computational stratigraphy model variables from running of the computational stratigraphy model may be provided as input to a machine learning model. The machine learning model may predict changes to the subsurface representation over a step corresponding to a time duration longer than the mini-time duration and output a predicted subsurface representation. The subsurface representation may be updated based on the predicted subsurface representation outputted by the machine learning model.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: March 14, 2023
    Assignee: Chevron U.S.A. Inc.
    Inventors: Tao Sun, Sebastien B. Strebelle, Ashley D. Harris, Maisha Lara Amaru, Lewis Li
  • Patent number: 11480709
    Abstract: Methods and systems for predicting hydrocarbon production and production uncertainty are disclosed.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: October 25, 2022
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Julian Thorne, Lewis Li
  • Patent number: 11423197
    Abstract: Systems and methods for estimating reservoir productivity as a function of position in a subsurface volume of interest are disclosed. Exemplary implementations may: obtain subsurface data and well data corresponding to a subsurface volume of interest; obtain a parameter model; use the subsurface data and the well data to generate multiple production parameter maps; apply the parameter model to the multiple production parameter maps to generate refined production parameter values; generate multiple refined production parameter graphs; display the multiple refined production parameter graphs; generate one or more user input options; receive a defined well design and the one or more user input options selected by a user to generate limited production parameter values; generate a representation of estimated reservoir productivity as a function of position in the subsurface volume of interest using the defined well design and visual effects; and display the representation.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: August 23, 2022
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Shane James Prochnow, Liliia Reddy, Petros Papazis, Lewis Li, Julian Thorne
  • Patent number: 11249220
    Abstract: Correlation matrices may be used to simultaneously correlate multiple wells. A correlation matrix may be generated for individual pairs of multiple wells. The values of elements of the correlation matrices may be determined based on matching between segments of the multiple wells and segments of one or more computational stratigraphic models. An N-dimensional space including an axis for individual wells may be generated. Directed walk may be performed within the N-dimensional space to generate paths representing scenarios of correlations for segments of the multiple wells.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: February 15, 2022
    Assignee: Chevron U.S.A. Inc.
    Inventors: Tao Sun, Lewis Li, Brett M. Hern, Fabien J. Laugier, Maisha Lara Amaru, Ashley D. Harris, Morgan David Sullivan
  • Publication number: 20210174583
    Abstract: Data in physical space may be converted to layer space before performing modeling to generate one or more subsurface representations. Computational stratigraphy model representations that define subsurface configurations as a function of depth in the physical space may be converted to the layer space so that the subsurface configurations are defined as a function of layers. Conditioning information that defines conditioning characteristics as the function of depth in the physical space may be converted to the layer space so that the conditioning characteristics are defined as the function of layers. Modeling may be performed in the layer space to generate subsurface representations within layer space, and the subsurface representations may be converted into the physical space.
    Type: Application
    Filed: December 6, 2019
    Publication date: June 10, 2021
    Inventors: Lewis Li, Tao Sun, Sebastien B. Strebelle
  • Patent number: 11010969
    Abstract: Data in physical space may be converted to layer space before performing modeling to generate one or more subsurface representations. Computational stratigraphy model representations that define subsurface configurations as a function of depth in the physical space may be converted to the layer space so that the subsurface configurations are defined as a function of layers. Conditioning information that defines conditioning characteristics as the function of depth in the physical space may be converted to the layer space so that the conditioning characteristics are defined as the function of layers. Modeling may be performed in the layer space to generate subsurface representations within layer space, and the subsurface representations may be converted into the physical space.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: May 18, 2021
    Assignee: Chevron U.S.A. Inc.
    Inventors: Lewis Li, Tao Sun, Sebastien B. Strebelle
  • Publication number: 20210116598
    Abstract: Methods and systems for predicting hydrocarbon production and production uncertainty are disclosed.
    Type: Application
    Filed: October 21, 2019
    Publication date: April 22, 2021
    Inventors: Julian Thorne, Lewis Li
  • Patent number: 10984590
    Abstract: Data in physical space may be converted to layer space before performing modeling to generate one or more subsurface representations. Computational stratigraphy model representations that define subsurface configurations as a function of depth in the physical space may be converted to the layer space so that the subsurface configurations are defined as a function of layers. Conditioning information that defines conditioning characteristics as the function of depth in the physical space may be converted to the layer space so that the conditioning characteristics are defined as the function of layers. Modeling may be performed in the layer space to generate subsurface representations within layer space, and the subsurface representations may be converted into the physical space.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: April 20, 2021
    Assignee: Chevron U.S.A. Inc.
    Inventors: Lewis Li, Tao Sun, Sebastien B. Strebelle
  • Publication number: 20210048556
    Abstract: Correlation matrices may be used to simultaneously correlate multiple wells. A correlation matrix may be generated for individual pairs of multiple wells. The values of elements of the correlation matrices may be determined based on matching between segments of the multiple wells and segments of one or more computational stratigraphic models. An N-dimensional space including an axis for individual wells may be generated. Directed walk may be performed within the N-dimensional space to generate paths representing scenarios of correlations for segments of the multiple wells.
    Type: Application
    Filed: August 14, 2019
    Publication date: February 18, 2021
    Inventors: Tao Sun, Lewis Li, Brett M. Hern, Fabien J. Laugier, Maisha Lara Amaru, Ashley D. Harris, Morgan David Sullivan
  • Publication number: 20200380390
    Abstract: A computational stratigraphy model may be run for M mini-steps to simulate changes in a subsurface representation across M mini-steps (from 0-th subsurface representation to M-th subsurface representation), with a mini-step corresponding to a mini-time duration. The subsurface representation after individual steps may be characterized by a set of computational stratigraphy model variables. Some or all of the computational stratigraphy model variables from running of the computational stratigraphy model may be provided as input to a machine learning model. The machine learning model may predict changes to the subsurface representation over a step corresponding to a time duration longer than the mini-time duration and output a predicted subsurface representation. The subsurface representation may be updated based on the predicted subsurface representation outputted by the machine learning model.
    Type: Application
    Filed: December 6, 2019
    Publication date: December 3, 2020
    Inventors: Tao Sun, Sebastien B. Strebelle, Ashley D. Harris, Maisha Lara Amaru, Lewis Li
  • Publication number: 20190179983
    Abstract: Systems and methods for estimating reservoir productivity as a function of position in a subsurface volume of interest are disclosed. Exemplary implementations may: obtain subsurface data and well data corresponding to a subsurface volume of interest; obtain a parameter model; use the subsurface data and the well data to generate multiple production parameter maps; apply the parameter model to the multiple production parameter maps to generate refined production parameter values; generate multiple refined production parameter graphs; display the multiple refined production parameter graphs; generate one or more user input options; receive a defined well design and the one or more user input options selected by a user to generate limited production parameter values; generate a representation of estimated reservoir productivity as a function of position in the subsurface volume of interest using the defined well design and visual effects; and display the representation.
    Type: Application
    Filed: February 20, 2019
    Publication date: June 13, 2019
    Inventors: Shane James PROCHNOW, Liliia REDDY, Petros PAPAZIS, Lewis LI, Julian THORNE