Patents by Inventor John R. Berryhill

John R. Berryhill 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: 5544126
    Abstract: A method of seismic shot-record migration includes the steps of generating seismic or acoustic waves into an earth formation from one or more sources with the sources being spaced some finite distance from each other. Next, one or more spaced receivers receive a seismic signal after the signal reflects or diffracts off of a subterranean feature. Next, a source location and a receiver location is arbitrarily selected. Finally, input data is mapped or migrated according to one of two equations, or both equations, to produce output data. The output data is then suitable for further processing by other seismic analysis techniques.
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: August 6, 1996
    Inventor: John R. Berryhill
  • Patent number: 5500832
    Abstract: Disclosed is a technique for processing seismic data to enable the data to be migrated without stacking. Seismic data provided in common midpoint gathers are converted to a domain defined in terms of the travel time and the first power of velocity of reflected waves, and migration is performed in this domain. The migrated seismic data is converted back to the offset domain, wherein velocity analyses may be performed prior to stacking of the data.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: March 19, 1996
    Assignee: Exxon Production Research Company
    Inventor: John R. Berryhill
  • Patent number: 4803668
    Abstract: A 3-D radial seismic survey method is described suitable for accurately defining by migration processing an area having a dome-like subsurface structure. Radial survey lines are plotted with polar symmetry with respect to a center position at the center of the dome, such lines traversing the steep dip in all directions at approximate right angles. Hence, the developed data is efficiently acquired data useful for defining the structure. Bisecting survey lines may be provided as the original lines diverge to satisfy sampling requirements for migration. Data is acquired and sorted into bins that are annulus sectors and which are maintained sufficiently uniform in size to be within a maximum-to-minimum ratio of 2-to-1. Seismic source and receiver lines may be coincident or angularly offset.
    Type: Grant
    Filed: May 27, 1988
    Date of Patent: February 7, 1989
    Assignee: Exxon Production Research Company
    Inventors: John R. Berryhill, John C. Wride
  • Patent number: H482
    Abstract: A seismic data processing method in which seismic traces (each trace containing a signal resulting from reflection of a seismic signal at a location within the earth, and each trace being associated with at least one point in a two-dimensional spatial grid (x,y)) are subjected to Fourier transformations, the coefficients of the Fourier-Transformed traces are subjected to a recursive KF migration operation, and the migrated traces are thereafter inverse-Fourier-transformed. When displayed, the processed seismic data accurately represents the position within the earth of whatever caused the reflection. The method may be employed to process stacked seismic traces, each associated with a single point (x,y) in the grid, or may be employed to process unstacked seismic traces, each associated with both a seismic source location (x.sub.s,y.sub.5) and a different seismic receiver location (x.sub.r,y.sub.r) in the grid.
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: June 7, 1988
    Inventors: John R. Berryhill, Ruth Gonzalez, Young C. Kim