Patents by Inventor Richard Graeme Carson

Richard Graeme Carson 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).

  • Method for reducing induction noise in towed marine electromagnetic survey signals
    Patent number: 8649992
    Abstract: A method for reducing effect of motion on electromagnetic signals detected while moving an electromagnetic receiver through a body of water includes measuring a parameter related to an amount of current passed through an electromagnetic transmitter to induce an electromagnetic field in subsurface formations. A magnetic field proximate the electromagnetic receiver is measured. A transmitter portion of the measured magnetic field is estimated from the measured parameter. A motion portion of the measured magnetic field is estimated from the measured magnetic field and the estimated transmitter portion. A voltage induced in the receiver is estimated from the estimated motion portion. Signals detected by the receiver are corrected using the estimated voltage.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: February 11, 2014
    Assignee: PGS Geophysical AS
    Inventors: Antoni Marjan Ziolkowski, Richard Graeme Carson
  • Method for reducing induction noise in towed marine electromagnetic survey signals
    Publication number: 20100017133
    Abstract: A method for reducing effect of motion on electromagnetic signals detected while moving an electromagnetic receiver through a body of water includes measuring a parameter related to an amount of current passed through an electromagnetic transmitter to induce an electromagnetic field in subsurface formations. A magnetic field proximate the electromagnetic receiver is measured. A transmitter portion of the measured magnetic field is estimated from the measured parameter. A motion portion of the measured magnetic field is estimated from the measured magnetic field and the estimated transmitter portion. A voltage induced in the receiver is estimated from the estimated motion portion. Signals detected by the receiver are corrected using the estimated voltage.
    Type: Application
    Filed: July 17, 2008
    Publication date: January 21, 2010
    Inventors: Antoni Marjan Ziolkowski, Richard Graeme Carson