Schlumberger Ngi Tool ((hot)) [4K]

In exploration wells, the subsurface is a mystery. The NGI acts as the "first look" sensor. It confirms the top of a reservoir immediately, allowing the team to set casing faster or change drilling parameters before the bit drills too far into a problematic formation.

It utilizes multiple frequencies (e.g., F1 and F2) to optimize signal-to-noise ratios across varying mud and formation types. schlumberger ngi tool

An operator in the Norwegian North Sea was drilling a 2,000-ft horizontal section in a thin, compartmentalized Jurassic sand. The sand was only 6 feet thick and bounded above by a water-saturated zone and below by a tight limestone. In exploration wells, the subsurface is a mystery