1
John K Washbourne, James W Rector III, Kenneth P Bube: Multi-crosswell profile 3D imaging and method. TomoSeis, Michael Pritzkau, May 14, 2002: US06388947 (208 worldwide citation)

Characterizing the value of a particular property, for example, seismic velocity, of a subsurface region of ground is described. In one aspect, the value of the particular property is represented using at least one continuous analytic function such as a Chebychev polynomial. The seismic data may inc ...


2
John K Washbourne: System for eliminating headwaves in a tomographic process. Tomoseis Corporation, E Eugene Thigpen, July 31, 2001: US06269310 (156 worldwide citation)

The invention comprises a method for processing crosswell seismic data from a region of the earth's subsurface generated by transmitting a seismic signal from a plurality of source positions within at least one borehole within said region and detecting said seismic signal at a plurality of rece ...


3
John K Washbourne, Kenneth P Bube: Method for estimation of propagation paths for seismic signals. Core Laboratories, E Thigpen, August 17, 2004: US06778907 (5 worldwide citation)

In one embodiment, the invention includes a method for estimating seismic signal propagation raypaths from seismic source locations through a subsurface formation to seismic receiver locations. Raypaths are determined which minimize the value of an expression which is a function of travel time and d ...


4
James R Magill, John K Washbourne: Method for determining seismic data quality. Chevron U, Torrey Pennebaker, Maurice Teixeira, February 9, 2010: US07660674 (2 worldwide citation)

The present invention determines seismic data quality for a plurality of locations within a seismic survey for a geologic or geophysical region of interest. The present invention additionally includes generating correlation coefficients which relate to the seismic data quality so that the seismic da ...


5
James R Magill, John K Washbourne: Method for determining seismic data quality. Chevron Usa, Chevron Corporation, February 5, 2009: US20090037115-A1

The present invention determines seismic data quality for a plurality of locations within a seismic survey for a geologic or geophysical region of interest. The present invention additionally includes generating correlation coefficients which relate to the seismic data quality so that the seismic da ...