ArchieParameters

Robert C. Ransom

Download Paper

Introduction

Abstract

What are Archie’s Basic Relationships

The Graphical Model

What is Meant by the Plot of Rt versus Swtϕt

Summary of Equations

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

Challenging Well-Log Examples

Observations and Conclusions from Figure 10 about Exponent n

Are There Limitations to Archie's Relationships Developed in this Model?

Conclusions

Epilogue

Acknowledgment

Symbols Defined

References

Appendix

All Figures

About the Author

Table of Retrievable Contents:

REFERENCES

Archie, G. E., 1942, The Electrical Resistivity Log as an Aid in Determining Some Reservoir Characteristics, Trans., AIME, vol. 146.

Atkins, E. R., and Smith, G. H., 1961, The Significance of Particle Shape in Formation Resistivity Factor - Porosity Relationships, Journal of Petroleum Technology, AIME, vol. 13.

Best, D. L., Gardner, J. S., and Dumanoir, J. L., 1980, A computer-processed wellsite log computation, SPE paper 9039, Rocky Mountain Meeting Proceedings, Society of Petroleum Engineers.

Fricke, H., 1931, The Electric Conductivity and Capacity of Disperse Systems, Physics, August.

Keller, G. V., 1953, Effect of Wettability on the Electrical Resistivity of Sand, Oil and Gas Journal, Jan. 5; 51: 62-65.

Levorsen, A. I., 1967, Geology of Petroleum, 2nd edition, W. H. Freeman, San Francisco

Pirson, S. J., 1947, Factors Which Affect True Formation Resistivity, Oil and Gas Journal, November 1.

Ransom, Robert C., 1974, The Bulk Volume Water Concept of Resistivity Well Log Interpretation. A Theory Based on a New Reservoir Rock Resistivity Model, The Log Analyst, SPWLA (Jan.-Feb.)

Ransom, Robert C., 1977, Methods Based on Density and Neutron Well- Logging Responses to Distinguish Characteristics of Shaly Sandstone Reservoir Rock, The Log Analyst, SPWLA (May-June)

Ransom, Robert C., 1984, A Contribution to a Better Understanding of the Modified Archie Formation-Resistivity-Factor Relationship, The Log Analyst, SPWLA (March-April)

Ransom, Robert C., 1995, Practical Formation Evaluation, John Wiley & Sons, Inc., New York.

Schlumberger, 1989, Log Interpretation Principals/Applications.

Sweeney, S. A. and Jennings, H. Y., 1960, The Electrical Resistivity of Preferentially Water-Wet and Preferentially Oil-Wet Carbonate Rocks, Producers Monthly, 24, 29-32.

Worthington, P. F., 2004, Characterization of the Intrinsic Porosity Exponent through Dual-salinity Measurements of Electrical Conductivity, Petrophysics, SPWLA, (November-December, pp. 499- 516)

Wyllie, M. R. J. and Gregory, A. R.; 1952, Formation Factors of Unconsolidated Porous Media; Influence of Particle Shape and Effect of Cementation; Paper Number 223-G presented at Fall Meeting of the Petroleum Branch, AIME, held at Houston, TX., October, 1-3.

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

A MODEL AND DISCUSSION

Within the text, clicking on the bold terms FIGURE (*) and APPENDIX (*) will take you to the specific page of interest. Use your browser's back button to return to your previous page.

Back

Next

Back

Next

NighttimeOilRig
ArchieParameters.com
Archie's
ArchieParameters.com Archie's