Skip to Main Content
Book Chapter

3-D Modeling of Resistivity Devices

By
T. Tamarchenko
T. Tamarchenko
ENRON, 1400 Smith St., Houston, TX 70002, USA.
Search for other works by this author on:
M. Frenkel
M. Frenkel
Western Atlas Logging Services, Houston, Texas, USA.
Search for other works by this author on:
A. Mezzatesta
A. Mezzatesta
Western Atlas Logging Services, Houston, Texas, USA.
Search for other works by this author on:
Published:
January 01, 1999

Summary

Resistivity logging plays a fundamental role in distinguishing between oil-saturated and water-saturated rocks. Accurate modeling of resistivity devices with complex electrode configurations in complicated borehole environments must take into account 3-D geometries. We present an efficient finite-difference solution to the dc modeling problem that can simulate resistivity devices in 3-D media. The algorithm uses a conjugate gradient solver with preconditioning. Examples indicate that the code is very accurate in the presence of very large contrasts in conductivity (up to 1011). Convergence of our iterative solver is excellent, but it is a function of conductivity contrast in the model. We present some applications of practical importance, including the response of a microresistivity tool to a tilted layer.

You do not currently have access to this article.
Don't already have an account? Register

Figures & Tables

Contents

Geophysical Developments Series

Three-Dimensional Electromagnetics

Society of Exploration Geophysicists
Volume
7
ISBN electronic:
9781560802154
Publication date:
January 01, 1999

GeoRef

References

Related

A comprehensive resource of eBooks for researchers in the Earth Sciences

This Feature Is Available To Subscribers Only

Sign In or Create an Account

This PDF is available to Subscribers Only

View Article Abstract & Purchase Options

For full access to this pdf, sign in to an existing account, or purchase an annual subscription.

Subscribe Now