Patents by Inventor Gilles Hennenfent

Gilles Hennenfent 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: 9612351
    Abstract: A system and method for attenuating noise in seismic data representative of a subsurface region of interest including receiving the seismic data; transforming the seismic data into a domain wherein the seismic data have a sparse or compressible representation to create transformed seismic data; dividing the domain into windows wherein the windows represent known spatio-temporal locations in the seismic data; determining statistics of the transformed seismic data in each window; determining a filter for each window based on the statistics of the transformed data; applying the filter for each window to the transformed seismic data in each window to create filtered seismic data; and performing an inverse transform of the filtered seismic data to create noise-attenuated seismic data.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: April 4, 2017
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Bogdan Kustowski, Gilles Hennenfent, Jeffrey Cole
  • Publication number: 20140278118
    Abstract: A system and method for attenuating noise in seismic data representative of a subsurface region of interest including receiving a seismic dataset representative of seismic signal or seismic noise and a seismic dataset representative of seismic signal and noise, transforming them into a domain were they have sparse or compressible representation, comparing the sets of coefficients to identify desirable coefficients in the set of coefficients representing the signal and noise dataset, selecting the desirable coefficients to produce an improved set of coefficients, and inverse transforming the improved set of coefficients to produce a modified seismic dataset. The modified seismic dataset may be noise-attenuated seismic data or may be a noise model that is subtracted from the original data to produce noise-attenuated data.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Sandra Tegtmeier-Last, Bogdan Lukasz Kustowski, Douglas William Clark, Gilles Hennenfent, Harry Martin
  • Publication number: 20140269186
    Abstract: A system and method for isolating signal in seismic data representative of a subsurface region of interest including receiving a seismic dataset representative of seismic signal and seismic noise and a seismic data guide; transforming the seismic dataset and the seismic data guide into a domain wherein the seismic data have a sparse or compressible representation to create a first set and a second set of representative coefficients; comparing the first set of representative coefficients to the second set of representative coefficients to identify and select desirable members of the first set of representative coefficients that are within a defined threshold of the second set of representative coefficients to create an improved first set of representative coefficients; and performing an inverse transform of the improved first set of representative coefficients to generate a modified seismic dataset.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Sandra Tegtmeier-Last, Gilles Hennenfent, Jeffrey Eaton Cole
  • Publication number: 20140088879
    Abstract: A system and method for processing a prestack seismic dataset with at least one smoothly varying (redundant) axis including transposing the prestack seismic dataset, slicing the prestack seismic dataset into depth or time slices with at least one redundant axis, processing the slices, and transposing the slices to create a processed seismic dataset. The redundant axis may be representative of offset, angle, azimuth, or time between time-lapse surveys. The processing may include filtering the slices to attenuate coherent or incoherent noise.
    Type: Application
    Filed: September 27, 2012
    Publication date: March 27, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Gilles Hennenfent, Karl Boles, Yves Dansereau
  • Publication number: 20140019055
    Abstract: A system and method for attenuating noise in seismic data representative of a subsurface region of interest including receiving the seismic data; transforming the seismic data into a domain wherein the seismic data have a sparse or compressible representation to create transformed seismic data; dividing the domain into windows wherein the windows represent known spatio-temporal locations in the seismic data; determining statistics of the transformed seismic data in each window; determining a filter for each window based on the statistics of the transformed data; applying the filter for each window to the transformed seismic data in each window to create filtered seismic data; and performing an inverse transform of the filtered seismic data to create noise-attenuated seismic data.
    Type: Application
    Filed: July 10, 2012
    Publication date: January 16, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Bogdan Kustowski, Gilles Hennenfent, Jeffrey Cole
  • Publication number: 20130253838
    Abstract: A system and method for determining a 4D difference from 4D seismic data including receiving a baseline seismic dataset and a monitor seismic dataset; identifying a 4D signal present in the monitor seismic dataset to create a 4D monitor dataset and a signal in the baseline seismic dataset which matches the monitor seismic dataset to create a baseline matching signal dataset; differencing the baseline matching signal dataset and the baseline seismic dataset to create a 4D baseline dataset; and differencing the 4D baseline dataset and the 4D monitor dataset to create a 4D difference dataset. In an embodiment, a multi-scale, multi-directional transform is used to identify the 4D signal present in the monitor seismic dataset and the signal in the baseline seismic dataset which matches the monitor seismic dataset.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 26, 2013
    Applicant: Chevron U.S.A. Inc.
    Inventors: Sandra Tegtmeier-Last, Gilles Hennenfent
  • Patent number: 8279707
    Abstract: Geophysical data representing at least first and second overlapping geophysical spaces may be aggregated. A first set of geophysical data representing the first geophysical space and a second set of geophysical data representing the second geophysical space may be obtained. The second set of geophysical data may be separate and discrete from the first set of geophysical data. The first set of geophysical data may be transformed from a first parametric domain to a third parametric domain, while the second set of geophysical data may be transformed from a second parametric domain to the third parametric domain. The first set of geophysical data may be fused with the second set of geophysical data in the third parametric domain to create a fused set of geophysical data. The fused set of geophysical data may be transformed from the third parametric domain to a fourth parametric domain.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: October 2, 2012
    Assignee: Chevron U.S.A. Inc.
    Inventor: Gilles Hennenfent
  • Publication number: 20110261648
    Abstract: Geophysical data representing at least first and second overlapping geophysical spaces may be aggregated. A first set of geophysical data representing the first geophysical space and a second set of geophysical data representing the second geophysical space may be obtained. The second set of geophysical data may be separate and discrete from the first set of geophysical data. The first set of geophysical data may be transformed from a first parametric domain to a third parametric domain, while the second set of geophysical data may be transformed from a second parametric domain to the third parametric domain. The first set of geophysical data may be fused with the second set of geophysical data in the third parametric domain to create a fused set of geophysical data. The fused set of geophysical data may be transformed from the third parametric domain to a fourth parametric domain.
    Type: Application
    Filed: April 23, 2010
    Publication date: October 27, 2011
    Inventor: Gilles Hennenfent