Patents by Inventor PETER GRAHAM STEWART

PETER GRAHAM STEWART 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: 10274627
    Abstract: A seismic sensor system includes a seismic sensor suspended in an acoustic medium, which is disposed between first and second sensor housings. The acoustic medium can be selected to preferentially transmit pressure wave energy, based on the acoustic impedance of the surrounding water column or other seismic medium. The acoustic medium can also be selected to preferentially dissipate or otherwise reduce the transmitted shear wave energy. The second housing can similarly be configured to dissipate shear wave energy, while transmitting pressure wave energy in the form of acoustic waves that propagate through the acoustic medium to the seismic sensor.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: April 30, 2019
    Assignee: ION Geophysical Corporation
    Inventors: Peter Graham Stewart, Cornelis A. M. Faber
  • Publication number: 20170123091
    Abstract: A seismic sensor system includes a seismic sensor suspended in an acoustic medium, which is disposed between first and second sensor housings. The acoustic medium can be selected to preferentially transmit pressure wave energy, based on the acoustic impedance of the surrounding water column or other seismic medium. The acoustic medium can also be selected to preferentially dissipate or otherwise reduce the transmitted shear wave energy. The second housing can similarly be configured to dissipate shear wave energy, while transmitting pressure wave energy in the form of acoustic waves that propagate through the acoustic medium to the seismic sensor.
    Type: Application
    Filed: October 31, 2016
    Publication date: May 4, 2017
    Inventors: Peter Graham Stewart, Kees Faber
  • Publication number: 20170082762
    Abstract: Embodiments of a method and system for acquiring a marine seismic survey are described. One method may include depositing on a seafloor a line of cable sections extending in a first direction. The line of cable sections may have a first end and a second end and may include a plurality of seismic wavefield receivers. The method may also include moving the line of cable sections by collecting cable sections from the second end of the line and depositing cable sections at the first end of the line so that the line of cable sections travels in the first direction. At least one source vessel may be used to provide acoustical waveforms while the line of cable sections is moving. The acoustical waveforms may be received by the plurality of seismic wavefield receivers in the line of cable sections so as to enable generation of a seismic survey.
    Type: Application
    Filed: September 21, 2016
    Publication date: March 23, 2017
    Inventors: GILES FRANCES TANFIELD WATTS, PETER GRAHAM STEWART