Patents by Inventor David Handwerger

David Handwerger 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: 10360282
    Abstract: A method and system for evaluation of a hydrocarbon-bearing shale formation employs a data processing system that defines a response model that relates first data representing measured petrophysical properties of the shale formation at a given location to second data representing volume fractions for a particular set of formation components at the given location. The first data includes hydrogen index at the given location, and the particular set of formation components of the second data include a number of mineral components and a number of hydrocarbon-bearing components. The hydrocarbon-bearing components include at least one kerogen component. A computation solver processes the response model along with the first data to solve for the second data. The solved second data representing the volume fraction of the at least one kerogen component is processed to derive at least one ratio that is indicative of kerogen maturity at the given location.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: July 23, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: John Rasmus, Richard E. Lewis, David Handwerger, Jack LaVigne
  • Publication number: 20160186556
    Abstract: A method and system for evaluation of a hydrocarbon-bearing shale formation employs a data processing system that defines a response model that relates first data representing measured petrophysical properties of the shale formation at a given location to second data representing volume fractions for a particular set of formation components at the given location. The first data includes hydrogen index at the given location, and the particular set of formation components of the second data include a number of mineral components and a number of hydrocarbon-bearing components. The hydrocarbon-bearing components include at least one kerogen component. A computation solver processes the response model along with the first data to solve for the second data. The solved second data representing the volume fraction of the at least one kerogen component is processed to derive at least one ratio that is indicative of kerogen maturity at the given location.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 30, 2016
    Inventors: John Rasmus, Richard E. Lewis, David Handwerger, Jack LaVigne
  • Patent number: 8571799
    Abstract: A methodology improves sampling and characterization of heterogeneous, unconventional hydrocarbon-bearing regions. The methodology is designed to integrate consistently across measurements and scales. Additionally, the methodology involves characterizing various scales, such as regional-scale heterogeneity, wellbore-scale heterogeneity, core-scale heterogeneity, sample-scale, and pore-scale heterogeneity. The results are integrated across the multiple scales based on results obtained from the characterization of the scales. The methodology further comprises determining data propagation across the multiple scales in a hydrocarbon-bearing region.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: October 29, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Roberto Suarez-Rivera, David Handwerger, Lars Sonneland, Samuel Fluckiger, Mary Milner, Douglas Ekart
  • Patent number: 8347959
    Abstract: A method for stimulating production of a first wellbore associated with a reservoir. The method includes determining a textural complexity of a formation in which the reservoir is located, determining an induced fracture complexity of the formation using the textural complexity, determining a first operation to perform within the formation to maintain conductivity of the formation based on the induced fracture complexity and the textural complexity, performing the first operation within the formation, and fracturing the formation to create a first plurality of fractures.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: January 8, 2013
    Assignee: TerraTek, Inc.
    Inventors: Roberto Suarez-Rivera, Sidney Green, Chaitanya Deenadayalu, David Handwerger, Yi-Kun Yang
  • Publication number: 20120316789
    Abstract: A methodology improves sampling and characterization of heterogeneous, unconventional hydrocarbon-bearing regions. The methodology is designed to integrate consistently across measurements and scales. Additionally, the methodology involves characterizing various scales, such as regional-scale heterogeneity, wellbore-scale heterogeneity, core-scale heterogeneity, sample-scale, and pore-scale heterogeneity. The results are integrated across the multiple scales based on results obtained from the characterization of the scales. The methodology further comprises determining data propagation across the multiple scales in a hydrocarbon-bearing region.
    Type: Application
    Filed: June 10, 2011
    Publication date: December 13, 2012
    Inventors: Roberto Suarez-Rivera, David Handwerger, Lars Sonneland, Samuel Fluckiger, Mary Milner, Douglas Ekart
  • Patent number: 8200465
    Abstract: A method for creating a heterogeneous earth model (HEM) of a reservoir field includes generating a group of wellsite models for a group of wellsites of the reservoir field based at least on cluster analysis and cluster tagging performed on log data of the group of wellsites, generating a reference model from the group of wellsite models, where cluster tagging errors of the group of wellsite models is minimized to obtain the reference model, constructing a contour plot of the cluster tagging errors on a cluster by cluster basis in the reservoir field, identifying at least one well location and associated core depth interval based on the contour plot for obtaining additional sampling results, and updating the reference model based on the additional sampling results to create the HEM.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: June 12, 2012
    Assignee: TerraTek Inc.
    Inventors: Roberto Suarez-Rivera, David Handwerger, Timothy Sodergren, Yi-Kun Yang
  • Patent number: 7983885
    Abstract: A method, apparatus and computer usable program code for identifying regions in the ground at a well site. Continuous data is received from the well site; reducing redundancies in the continuous data received from the well site to form processed data. Cluster analysis is performed using the processed data to form a set of cluster units, wherein the set of cluster units include different types of cluster units that identify differences between regions in the ground at the well site. Properties are identified for each type of cluster unit in the set of cluster units to form a model for the well site.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: July 19, 2011
    Assignee: TerraTek, Inc.
    Inventors: Roberto Suarez-Rivera, David A. Handwerger, Timothy L. Sodergren
  • Publication number: 20090319243
    Abstract: A method for creating a heterogeneous earth model (HEM) of a reservoir field includes generating a group of wellsite models for a group of wellsites of the reservoir field based at least on cluster analysis and cluster tagging performed on log data of the group of wellsites, generating a reference model from the group of wellsite models, where cluster tagging errors of the group of wellsite models is minimized to obtain the reference model, constructing a contour plot of the cluster tagging errors on a cluster by cluster basis in the reservoir field, identifying at least one well location and associated core depth interval based on the contour plot for obtaining additional sampling results, and updating the reference model based on the additional sampling results to create the HEM.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 24, 2009
    Applicant: TerraTek, Inc.
    Inventors: ROBERTO SUAREZ-RIVERA, DAVID HANDWERGER, TIMOTHY SODERGREN, YI-KUN YANG
  • Publication number: 20090065253
    Abstract: A method for stimulating production of a first wellbore associated with a reservoir. The method includes determining a textural complexity of a formation in which the reservoir is located, determining an induced fracture complexity of the formation using the textural complexity, determining a first operation to perform within the formation to maintain conductivity of the formation based on the induced fracture complexity and the textural complexity, performing the first operation within the formation, and fracturing the formation to create a first plurality of fractures.
    Type: Application
    Filed: September 3, 2008
    Publication date: March 12, 2009
    Applicant: TERRATEK, INC.
    Inventors: Roberto Suarez-Rivera, Sidney Green, Chaitanya Deenadayalu, David Handwerger, Yi-Kun Yang
  • Publication number: 20080162098
    Abstract: A method, apparatus and computer usable program code for identifying regions in the ground at a well site. Continuous data is received from the well site; reducing redundancies in the continuous data received from the well site to form processed data. Cluster analysis is performed using the processed data to form a set of cluster units, wherein the set of cluster units include different types of cluster units that identify differences between regions in the ground at the well site. Properties are identified for each type of cluster unit in the set of cluster units to form a model for the well site.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 3, 2008
    Inventors: Roberto Suarez-Rivera, David A. Handwerger, Timothy L. Sodergren, Sidney J. Green