ArchieParameters

Robert C. Ransom

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Introduction

Abstract

What are Archie’s Basic Relationships

The Graphical Model

What is Meant by the Plot of Rt versus Swtϕt

Parallel Resistivity Equations Used in Resistivity Interpretation

What is the Formation Resistivity Factor

The m Exponents

How is Exponent n Related to Exponent m

The a Coefficient

The Saturation Evaluation

Are There Limitations

Conclusions

Epilogue

Acknowledgment

Symbols Defined

References

Appendix

All Figures

About the Author

Table of Retrievable Contents:

EPILOGUE

A good well-logging interpretation program is like a double edged sword. It must cut both ways. The program must find hydrocarbons where they exist and must not imply them where they do not exist. The purpose is to be accurate with consistent reliability. Together with interactive computer graphics, the author has used the foregoing logic and fundamentals as the skeletal framework to guide Archie’s relationships in a resistivity well-log-analysis program for over thirty years in all parts of the world. It has an established track record.

A CLARIFYING CONCEPT OF ARCHIE'S RESISTIVITY RELATIONSHIPS AND PARAMETERS.

A MODEL AND DISCUSSION

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