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.

Seismic Steps Aid Sequestration   
By Bob Hardage, Diana Sava / May 2009

Sequestration of CO2 in sealed brine reservoirs is an important issue in industrialized countries that are concerned about the impact of excessive atmospheric CO2 on the environment.

Bit by Bit: A Good Seismic Strategy   
By Bob Hardage / April 2009

Last month we looked at the concept of utilizing the axial impacts of the rotating teeth of a rotary-cone drill bit as a downhole seismic source, which allows seismic data to be acquired by surfacepositioned sensors as a well is being drilled.

Drill-Bit Seismic Still Has Teeth  
By Bob Hardage / March 2009

In concept, any type of mechanical vibration that is introduced into the Earth can be used as a seismic wavefield to illuminate and image subsurface geology. Seismic imaging does not always have to be done with controlled, sophisticated sources such as air gun arrays, vibrators or shot hole explosives.

Thinking Nano Is a Big Thing  
By Bob Hardage / February 2009
This month's Geophysical Corner covers the exciting science of nanotechnology which is being introduced into reservoir characterization and monitoring. 

Hey, Who Overturned These Strata?  
By Bob Hardage / January 2009

The methodology described here may benefit those who are confronted with the problem of interpreting complex structures from limited-quality 3-D seismic images.

Results Shine for New Technology  
By Bob Hardage / December 2008

China Case: Fracture Data Integrated  
By John Tinnin, James Hallin, Jim Granath, Peter Stewart / November 2008

China Study: Detecting Fractures  
By Peter Stewart, John Tinnin, James Hallin, Jim Branath / October 2008
This two-part series describes how Sinopec’s local operating company, Southwest Petroleum Branch (SWPB), utilized full-wave seismic data to improve production from a fractured tight-gas reservoir in XinChang Field, Sichuan Province, China. 
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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.

Geophysical Corner

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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