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Geophysics and Seismology

Missouri University of Science and Technology

1968

Electric logging -- Mathematical models<br />Electric logging<br />Electrodes

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Analysis Of A Focus Log Electrode In A Non Homogeneous Medium, John Julian Zenor Jan 1968

Analysis Of A Focus Log Electrode In A Non Homogeneous Medium, John Julian Zenor

Doctoral Dissertations

"The mathematical model presented for the focused logging system is applicable to any resistance logging tool of the electrode type. Horizontal or cylindrical resistance interfaces may be included in any combinations. The tool and its environment are compartmentalized, and the integral form of the condition for continuity of current is applied to each compartment. Acceleration methods are applied to the iterative solution of the resulting large-scale system of linear equations. Two specific models are presented, one for the study of the effects of invasion and the other for the study of the effects of bed thickness on the apparent resistivity …