Amoco Corporation

The Standard Oil Company

James H Wright

John H Bodine

Leon A Thomsen

Richard M Alford

John N Gallagher

Jonathan Bork

John H Caldwell

Richard C Heiser

Time-coherency traces generated during velocity analysis are displayed in panels where each panel contains traces representing a single selected trial stacking velocity function and a plurality of common midpoint locations along a seismic line of exploration. Points selected from the panels, optimally by comparison with stacked sections, are used to generate a time velocity funtion for stacking, NMO correction, interval velocity determination, or other uses.

Geophysical exploration using velocity picking from trial velocity

Regional coherency maxima are displayed in various domains and interactively edited to produce stacking velocity functions, horizon velocity functions, and sets of edited velocity spectra regional coherency peaks for use in geophysical exploration for oil and gas.

Geophysical exploration using velocity spectra regional coherency peaks

A method for processing and displaying seismic data. More particularly, a novel method for enhancing the display of common depth point seismic data. Common Depth point gathers of seismic data are processed to enhance the signal-to-noise ratio by reducing the averaging effects of lateral variations in the subterranean formation on the seismic data as well as reducing the averaging of range dependent amplitude variations in the seismic data.

Method for enhancing common depth point seismic data

A method for quantitatively distinguishing seismic events on a seismic record for inferring changes in the geological character of the subterranean formations. Reflection coefficients are obtained for such seismic events and a first set of attributes indicative of amplitude variations in the offset seismic signals corresponding to the seismic event as a function of incident angle are obtained therefrom. The first set of attributes provide a seismologist with a diagnostic tool for quantitatively evaluating subtle changes in the seismic event. A second set of attributes which are functions of the first set of attributes provide the seismologist with additional diagnostic tools for evaluating subtle changes in the seismic events.

Growing community of inventors

Tulsa, OK, United States of America

James H Wright