Patents by Inventor Christian Wilhelm Strand

Christian Wilhelm Strand 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).

  • Infill monitoring using the three-dimensional Fresnel zone of a migration operator
    Patent number: 11543550
    Abstract: Implementations for monitoring seismic data recorded in a marine survey of a subterranean formation for coverage gaps are described herein. Implementations include computing Fresnel sum operators for Fresnel zones of the subterranean formation based on a Kirchhoff migration impulse response at horizons of a representative plane layer model of a survey area of the subterranean formation. Implementations also include computing an acceptability map of the survey area based on the Fresnel sum operators. The acceptability map reveals coverage gaps in the survey area. Geoscientist may use the acceptability map to infill seismic data in areas of the survey area that correspond to the coverage gaps.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: January 3, 2023
    Assignee: PGS GEOPHYSICAL AS
    Inventors: Christian Wilhelm Strand, Peter Ward
  • INFILL MONITORING USING THE THREE-DIMENSIONAL FRESNEL ZONE OF A MIGRATION OPERATOR
    Publication number: 20210055437
    Abstract: Implementations for monitoring seismic data recorded in a marine survey of a subterranean formation for coverage gaps are described herein. Implementations include computing Fresnel sum operators for Fresnel zones of the subterranean formation based on a Kirchhoff migration impulse response at horizons of a representative plane layer model of a survey area of the subterranean formation. Implementations also include computing an acceptability map of the survey area based on the Fresnel sum operators. The acceptability map reveals coverage gaps in the survey area. Geoscientist may use the acceptability map to infill seismic data in areas of the survey area that correspond to the coverage gaps.
    Type: Application
    Filed: July 15, 2020
    Publication date: February 25, 2021
    Applicant: PGS Geophysical AS
    Inventors: Christian Wilhelm Strand, Peter Ward