Shining Light on a Shady Situation   
By Bob Hardage / March 2010

Seismic reflection data come alive when displayed with shaded relief.

Good News: A Dim Future Isn’t Bad!   
By Bob Hardage / February 2010

Everyone has heard of a bright spot – a high seismic amplitude caused by hydrocarbon. Much oil and gas has been found by drilling anomalous bright reflections, particularly in younger sediments.

Vertical Wave Testing: Part 2   
By Bob Hardage / January 2010

Vertical wave testing is done by deploying seismic receivers downhole and recording the downgoing wavelet generated by each energy source being considered for surface seismic data acquisition across the area local to the receiver well.

Horizontal Wave Testing Helps   
By Bob Hardage / December 2009

This month’s column is the first of a two-part series dealing with seismic wave tests – horizontal wave testing.

Seismic Aids Heterogeneity Hunt   
By Bob Hardage / November 2009

This month’s column deals with determining reservoir heterogeneity in Athabasca oil sands from surface seismic data. 

Tuning Effects’ Impact on Seismic   
By Bob Hardage / October 2009

Seismic reflection amplitude can be related to net pay and can provide information about the presence or absence of hydrocarbons in a reservoir interval.

Looking Low Aids Data Interpretation   
By Bob Hardage / September 2009

Numerous examples have circulated among the geophysical community that illustrate how some geologic targets can be better seen by constraining the reflected seismic wavefield to a particular narrow range of frequencies.

Welding Geology to Seismic Images   
By Bob Hardage / August 2009

Vertical seismic profiling (VSP) is a measurement procedure in which a seismic sensor is lowered to a sequence of selected depths in a well by wireline, and at each of the downhole receiver stations that sensor then records the downgoing and upgoing seismic wavefields produced by a surface-positioned source.

Thin Is In: Here’s a Helpful Attribute   
By Bob Hardage / July 2009

Here we illustrate another application of that 2008 reflectivity calculation that aids in quantifying numerous geological features – with the emphasis here being on thin beds.

A Powerful Tool for Mapping Faults  
By Alexandra Kirshner, Bruce Hart / June 2009

In this month's Geophysical Corner the authors illustrate the use of a technique known as corendering to assist fault interpretations in a structurally complex area.

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Geophysical Corner

Geophysical Corner - Satinder Chopra
Satinder Chopra, chief geophysicist (reservoir), at Arcis Seismic Solutions, Calgary, Canada, began serving as the editor of the Geophysical Corner column in 2012.

The Geophysical Corner is a regular column in the EXPLORER that features geophysical case studies, techniques and application to the petroleum industry.

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Geophysical Corner

Geophysical Corner - Bob Hardage
Bob A. Hardage, senior research scientist at the Bureau of Economic Geology, the University of Texas at Austin served as editor of the Geophysical Corner from 2006 to 2011.

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