Patents by Inventor Mattias Enstedt

Mattias Enstedt 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: 9348059
    Abstract: Techniques are disclosed relating to forward and inverse modeling of geophysical formations using interpolation. In one embodiment, a method includes generating a system of equations based on a background model that describes a geophysical formation. In this embodiment, the method also includes generating a first set of solutions for the system of equations using an initial set of base points from geophysical survey data obtained from the geophysical formation and interpolating, using the first set of solutions, to produce a set of solution approximations for a second set of data points from the geophysical survey data. In this embodiment, the method also includes generating a model of the geophysical formation, using the second set of data points and the set of solution approximations, where the model includes a second set of solutions for the system of equations.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: May 24, 2016
    Assignee: PGS Geophysical AS
    Inventors: Mattias Enstedt, Joel Skogman, Leif Abrahamsson
  • Publication number: 20140359265
    Abstract: Techniques are disclosed relating to forward and inverse modeling of geophysical formations using interpolation. In one embodiment, a method includes generating a system of equations based on a background model that describes a geophysical formation. In this embodiment, the method also includes generating a first set of solutions for the system of equations using an initial set of base points from geophysical survey data obtained from the geophysical formation and interpolating, using the first set of solutions, to produce a set of solution approximations for a second set of data points from the geophysical survey data. In this embodiment, the method also includes generating a model of the geophysical formation, using the second set of data points and the set of solution approximations, where the model includes a second set of solutions for the system of equations.
    Type: Application
    Filed: July 29, 2013
    Publication date: December 4, 2014
    Applicant: PGS Geophysical AS
    Inventors: Mattias Enstedt, Joel Skogman, Leif Abrahamsson
  • Patent number: 8898102
    Abstract: Techniques are described for determining an optimal resolution for a grid to be used in solving inverse problems. Reference physical fields may be computed based on model data for the computational grid at a starting resolution. Cells in the computational grid may be split in a plurality of iterations to provide finer resolution. The model data may be perturbed by introducing different physical property values to the cells. The physical fields may be calculated based on the perturbed model data. A comparison may be made between the reference physical fields and the calculated physical fields based on the perturbed model data for the purpose of determining whether cell splitting should continue.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: November 25, 2014
    Assignee: PGS Geophysical AS
    Inventors: Joel Skogman, Mattias Enstedt
  • Publication number: 20130318026
    Abstract: Techniques are described for determining an optimal resolution for a grid to be used in solving inverse problems. Reference physical fields may be computed based on model data for the computational grid at a starting resolution. Cells in the computational grid may be split in a plurality of iterations to provide finer resolution. The model data may be perturbed by introducing different physical property values to the cells. The physical fields may be calculated based on the perturbed model data. A comparison may be made between the reference physical fields and the calculated physical fields based on the perturbed model data for the purpose of determining whether cell splitting should continue.
    Type: Application
    Filed: May 25, 2012
    Publication date: November 28, 2013
    Applicant: PETROLEUM GEO-SERVICES, INC.
    Inventors: Joel SKOGMAN, Mattias ENSTEDT
  • Publication number: 20110198520
    Abstract: A valve arrangement for controlling a clamping medium flow between a first (C1) and a second (C2) damping chamber in a hydraulic shock absorber. The invention also relates to a shock absorber having this valve arrangement.
    Type: Application
    Filed: July 1, 2009
    Publication date: August 18, 2011
    Inventors: Mattias Enstedt, Atsushi Ishii, Geir Lindblad