Although tool constants have been used for laterolog and induction logging for a long time to directly determine formation resistivity or conductivity, no tool constants have been presented for propagation logging. In this work, we give the tool constant for propagation measurements in order to determine formation conductivity directly from the measurements. The formation conductivity found in such a way is referred to as apparent conductivity. Two apparent conductivities are introduced accordingly: one associated with phase shift, and the other associated with attenuation. By doing so, propagation measurements are put on equal footing with laterolog and induction measurements. The two apparent conductivities can be used to assist in understanding and interpreting propagation data in a variety of scenarios. The tool constant can be used to understand how the electronic error affects the accuracy of measurements. It can also be used to optimize the tool design by taking advantage of its explicit expression of frequencyand spacing.
Presentation Date: Monday, October 12, 2020
Session Start Time: 1:50 PM
Presentation Time: 2:15 PM
Location: Poster Station 2
Presentation Type: Poster
