Webradio-frequency heating, process of heating materials through the application of radio waves of high frequency—i.e., above 70,000 hertz (cycles per second). Two methods of radio-frequency heating have been developed. One of these, induction heating, has proved highly effective for heating metals and other materials that are relatively good … Web14 de nov. de 2024 · This anisotropy is typically in the form of vertical and/or horizontal transverse isotropy (VTI/HTI). Energy Sources for Acoustic Logs Tools today typically operate in the 5 – 10kHz frequency range. In our Sonic Logging Examples we use two different types of excitation method, monopole (Figure 1) and a Dipole (Figure 2) source.

Recovering oil reservoir parameters according to high-frequency ...

WebCalculated logs obtained with a VIKIZ high-frequency induction isoparametric logging probe of different length l using a water-based mud (a) and an oil-based mud (b): l = 0.5 … WebThe solution is the use of a dual-frequency inverter. The output current i flowing through the exciter coil consists of two components: i = iMF + iHF (MF, medium frequency; HF, high frequency). Properly matched frequencies and amplitudes of both iMF and iHF allow to reach even heat surface distribution. share the wealth song

Application of high frequency isoparametric induction logging …

Web30 de set. de 2001 · High frequency simulation models for power cables and motors are the key tools that aid a better understanding of the overvoltage problem in PWM drives with long feeders. In this paper, the frequency responses of the cable and the motor windings are obtained experimentally and suitable models are developed to match the experimental … Web1 de jul. de 2016 · High-frequency induction, gamma, and neutron logs jointly indicate lithological heterogeneity: HFIL- based apparent resistivity is higher at the layer base, while gamma logs show clay contents increasing with depth which commonly decreases the … Web30 de set. de 2001 · High frequency simulation models for power cables and motors are the key tools that aid a better understanding of the overvoltage problem in PWM drives with … share the word