Patents by Inventor John Cobbina Owusu

John Cobbina Owusu 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).

  • Vertical seismic profiling-common midpoint gathers (VSP-CMP) by wavefield extrapolation
    Patent number: 9535183
    Abstract: Direct arrivals from walkaway vertical seismic profiling or VSP survey data are used to derive Green's functions representing the seismic wave amplitude and travel time information required to extrapolate the vertical seismic profiling survey data from individual wellbore receivers to the individual source locations. The derived Green's functions are employed in a convolution process with upcoming primary wavefields from the VSP survey data for other surface locations. The derived Green's functions are also used in a correlation process with downgoing wavefields from the VSP survey data to extend lateral coverage of the VSP image. The sets of VSP-CMP gathers so formed are then processed to obtain information about the subsurface formations.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: January 3, 2017
    Assignee: Saudi Arabian Oil Company
    Inventors: Bouchaib El Marhfoul, John Cobbina Owusu
  • VERTICAL SEISMIC PROFILING-COMMON MIDPOINT GATHERS (VSP-CMP) BY WAVEFIELD EXTRAPOLATION
    Publication number: 20140254320
    Abstract: Direct arrivals from walkaway vertical seismic profiling or VSP survey data are used to derive Green's functions representing the seismic wave amplitude and travel time information required to extrapolate the vertical seismic profiling survey data from individual wellbore receivers to the individual source locations. The derived Green's functions are employed in a convolution process with upcoming primary wavefields from the VSP survey data for other surface locations. The derived Green's functions are also used in a correlation process with downgoing wavefields from the VSP survey data to extend lateral coverage of the VSP image. The sets of VSP-CMP gathers so formed are then processed to obtain information about the subsurface formations.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 11, 2014
    Applicant: Saudi Arabian Oil Company
    Inventors: Bouchaib El Marhfoul, John Cobbina Owusu