Resistivity Button Electrode

Resistivity button electrodes are crucial detection units for imaging logging tools and formation evaluation. The surface is treated with gold plating and nickel-based alloys for extreme erosion resistance and low polarization resistance, maintaining electrical contact at 25,000 psi in acidic mud. Through high-precision current measurement, it captures subtle resistivity changes to synthesize high-resolution formation images, serving as a key micro-sensor for identifying fractures, bedding, and evaluating reservoir saturation.