Gary O Robinson

Address:

8088 S Niagara Way, Centennial, CO 80112

Phone:

(303)9936843

VIN:

JTDKN3DU7B1405150

Make:

TOYOTA

Model:

PRIUS

Year:

2011

US Patent:

7525874, Apr 28, 2009

Filed:

Apr 17, 2007

Appl. No.:

11/736470

Inventors:

Gary Charles Robinson - Aurora CO, US
Volodya Litvinov - Minsk, BY
Udo G. Araktingi - Parker CO, US

Assignee:

Prism Seismic Inc. - Centennial CO

International Classification:

G01V 1/36

US Classification:

367 51, 367 50, 367 54

Abstract:

A method is used to convert seismic data between bounding upper and lower surfaces in the time domain to the depth domain. An upper depth surface corresponding to the upper time surface is determined, either from well data or by time-depth conversion of the upper time surface. An interval velocity value is determined for each seismic sample between the bounding time surfaces from velocity data generated from well logs. The seismic times between the bounding time surfaces are then converted to the depth domain by adding the thickness of each seismic sample to the upper depth surface, wherein the thickness of each seismic sample is a function of the seismic sample rate and interval velocity value for each seismic sample. The seismic attribute values from the converted seismic data can be interpolated to a linear depth sampling.

US Patent:

7668042, Feb 23, 2010

Filed:

Jul 10, 2006

Appl. No.:

11/484234

Inventors:

Gary Charles Robinson - Aurora CO, US

Assignee:

Prism Seismic Inc. - Centennial CO

International Classification:

G01V 1/40

US Classification:

367 25, 367 27, 367 33

Abstract:

A method for obtaining a seismic wavelet using seismic data in a deviated well includes the steps of: (a) extracting seismic data along the well path; (b) calculating the well path in the time domain; (c) extracting a window of seismic data in the time domain along the well path in the time domain; (d) combining the extracted window of seismic data to obtain a composite seismic trace; and (e) extracting a seismic wavelet using the composite seismic trace.

US Patent:

20060256657, Nov 16, 2006

Filed:

May 5, 2006

Appl. No.:

11/418756

Inventors:

Gary Robinson - Aurora CO, US

International Classification:

G01V 1/28

US Classification:

367038000

Abstract:

The present methodology improves the time-depth tie between well log data and seismic data. This method refines the time-depth relationship by inverting the seismic trace at the well location, converting the trace to depth using the time-depth relationship, and then comparing the log data with the depth-converted inverted seismic trace. Depth differences between the two traces are then used to modify the time-depth relationship. The well-seismic correlation can also be modified using the revised time-depth function.