Patents by Inventor Nicolas Leseur

Nicolas Leseur 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).

  • Patent number: 9792258
    Abstract: Provided are methods, computer readable medium, apparatus, and program code for determining well characteristics and pore architecture for a hydrocarbon well utilizing data available from conventional/standard electronic well logs. An example of a method can include determining the value of well constants from well log data to include calculating water saturation, free water level location, wettability, and pore throat heterogeneity, and calculating pore architecture at log resolution responsive thereto. This can be accomplished, for example, by accessing well log data from a conventional well log, determining a linear regression line responsive to parameters calculated from the well log data, the linear regression line having a slope and an intercept, and determining a value of each of a plurality of well constants responsive to a value of the slope and of the intercept of the linear regression line.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: October 17, 2017
    Assignee: Saudi Arabian Oil Company
    Inventors: Johannes Jacobus Buiting, Nicolas Leseur
  • Patent number: 9588939
    Abstract: Apparatus, computer readable media, method and program code for determining well characteristics and pore architecture for a hydrocarbon well utilizing data available from conventional/standard electronic well logs, are provided. An example apparatus is configured to perform operations which include determining the value of well constants from well log data to include calculating water saturation, free water level location, wettability, and pore throat heterogeneity, and calculating pore architecture at log resolution responsive thereto. This can be accomplished, for example, by accessing well log data from a conventional well log, determining a linear regression line responsive to parameters calculated from the well log data, the linear regression line having a slope and an intercept, and determining a value of each of a plurality of well constants responsive to a value of the slope and of the intercept of the linear regression line.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: March 7, 2017
    Assignee: Saudi Arabian Oil Company
    Inventors: Johannes Jacobus Buiting, Nicolas Leseur
  • Patent number: 9229127
    Abstract: Methods, program code, computer readable medium, and apparatus estimating permeability at unsampled (uncored) but logged interval locations in a reservoir based upon a similarity with log signatures from cored intervals, are provided. An example of a method can include performing a core plug-by-core plug blind test, defining an objective function which qualifies the quality of the permeability prediction to minimize discrepancies between measured and predicted permeability, optimizing calculated parameters, and estimating permeability values of uncored logged intervals. The method can also include applying a debiasing/variance restoration to compensate for inherent averaging artifacts.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: January 5, 2016
    Assignee: Saudi Arabian Oil Company
    Inventor: Nicolas Leseur
  • Publication number: 20140236486
    Abstract: Methods, program code, computer readable medium, and apparatus estimating permeability at unsampled (uncored) but logged interval locations in a reservoir based upon a similarity with log signatures from cored intervals, are provided. An example of a method can include performing a core plug-by-core plug blind test, defining an objective function which qualifies the quality of the permeability prediction to minimize discrepancies between measured and predicted permeability, optimizing calculated parameters, and estimating permeability values of uncored logged intervals.
    Type: Application
    Filed: February 21, 2013
    Publication date: August 21, 2014
    Applicant: SAUDI ARABIAN OIL COMPANY
    Inventor: Nicolas Leseur