Subsequent generations saw the introduction of tools like the OBMI (Oil-Based Microimager) and Quanta Geo , which introduced complex physics to bypass nonconductive mud barriers. The synthesizes these advancements. It utilizes high-frequency operational dynamics to measure the physical characteristics of the formation without suffering from the signal degradation common in older systems. Key Technical Specifications & Mnemonic Architecture
The NGI tool is most commonly deployed in production logging and well integrity surveys: schlumberger ngi tool
: The tool has been deployed globally, including a notable 2,000-meter interval acquisition in Australia's North Carnarvon Basin to support reservoir quality assessment. compares to newer tools like Quanta Geo at-bit imaging service? Microresistivity - Oil-Based Microimaging | SLB Subsequent generations saw the introduction of tools like
The NGI tool detected a down-dip structural change that was not apparent on the seismic data. The inversion model showed the bit approaching the lower limestone boundary 12 feet early. The team steered aggressively up-hole, avoiding a trip out of the reservoir. Final well data showed 98% net-to-gross (NTG) in the target zone, delivering an IP (Initial Production) 40% above prognosis. Key Technical Specifications & Mnemonic Architecture The NGI
: Impedance of Buttons (Amplitude and Phase) for specific pads.
The NGI tool features a sophisticated array of transmitters and receivers:
The is a wireline logging tool developed by Schlumberger (now part of SLB) designed to address a critical challenge in petrophysics: evaluating low-resistivity, low-contrast (LRLC) pay zones , particularly those associated with gas-bearing reservoirs.