The NGI tool's primary function is to measure microresistivity variations at the borehole wall. Unlike standard logging tools that provide a bulk measurement, the NGI uses a dense array of electrode "buttons" mounted on multiple pads that are pressed against the rock face.
: While the NGI was a standard for many years, SLB (formerly Schlumberger) has since introduced more advanced services like the Quanta Geo schlumberger ngi tool
For drilling engineers and geologists looking to deploy the NGI, follow these best practices: The NGI tool's primary function is to measure
: Specifically designed for oil-based mud (OBM) environments where traditional imagers often fail. schlumberger ngi tool
) measurement. It achieves this through several advanced features: