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Geophysical Corner

Effective Ways to Eliminate Side-Lobe Effects   
By Satinder Chopra / February 2014

It is no secret that geologists do not fully trust all the events shown in pretty seismic pictures.

Finding the Value in Spectral Decomposition  
By Rongfeng Zhang / January 2014

When we see a rainbow, it is visually appealing – and the natural tendency is to appreciate its aesthetic qualities rather than study it on an analytical basis, as frequency sub-bands decomposed from white light.

Spectral Decomposition’s Analytical Value  
By Satinder Chopra / December 2013

Stratigraphers use seismic data in two major ways.

Adding Texture Attributes to the 3-D Mix  
By Paul DeGroot, Nanne Hemstra, Farrukh Qayyum / November 2013

The attributes in question were derived from a HorizonCube, an interpretation technique that provides fully interpreted seismic volumes where horizons are automatically tracked between a given set of framework horizons and faults.

Let’s Get Small: Benefits of Reduced Bin Size  
By Satinder Chopra / October 2013

Ideally, seismic data should be acquired at high spatial and temporal sampling, so that the small subsurface features of interest can be clearly seen on the seismic display.

A New Approach to Stratigraphic Interpretation  
By Satinder Chopra / September 2013

This article introduces a new set of seismic attributes that play an important role in extracting detailed stratigraphic information from seismic data.

Quantitative Curvature Analysis: A Case Study  
By Satinder Chopra / August 2013

Last month in this space we analyzed the relations of fracture patterns and layer curvature in clay models. This month we examine these relations in a central Oklahoma field developed by Pathfinder Exploration, Norman, Okla.

Testing Curvature’s Impact on Fractures  
By Satinder Chopra / July 2013

Fracture zones can be critical to improving or creating sufficient porosity and permeability in hydrocarbon reservoirs – with strain, along with lithology and thickness being the major controls.

Finding the Path Past 'Attribute Footprints'  
By Satinder Chopra / June 2013

Three-D seismic surveys usually are designed in a way that the subsurface features are regularly sampled in different dimensions, comprising the spatial coordinates, offsets and azimuths.

What Is Seismic Interpretation?  
By Satinder Chopra / May 2013

Seismic Interpretation is the extraction of subsurface geologic information from seismic data. On that definition we all are agreed.

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Geophysical Corner

Geophysical Corner - Satinder Chopra
Satinder Chopra, award-winning chief geophysicist (reservoir), at Arcis Seismic Solutions, Calgary, Canada, and a past AAPG-SEG Joint Distinguished Lecturer 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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