In the highly competitive and technologically demanding world of oil and gas exploration, the Schlumberger NGI tool acts as a "ground truth" sensor. By bridging the gap between basic wireline logs and physical core samples, it empowers operators to make informed, data-driven decisions regarding well completion, reservoir management, and production optimization.
The NGI tool performs exceptionally well in fresh muds, oil-based muds (OBM), and synthetic-based muds. This versatility simplifies tool selection for complex drilling campaigns using varied drilling fluid programs. Technical Specifications and Features schlumberger ngi tool
| Specification | Details | |---------------|---------| | | 4¾ in, 6¾ in (and other sizes) | | Position | Directly behind the drill bit (shortest sensor offset in the industry) | | Gamma Ray Detectors | Multiple azimuthally‑spaced scintillation detectors | | Measurements | Total gamma ray (gAPI) + Azimuthal gamma ray image + Spectral K‑U‑Th (when calibrated) | | Inclination | Dynamic, high‑frequency (helps correct for tool rotation) | | Max. Temperature | 150°C (302°F) | | Max. Pressure | 20,000 psi | | Data Transmission | Real‑time mud‑pulse telemetry + memory for high‑resolution playback | Pressure | 20,000 psi | | Data Transmission
. This wireline tool is a high-resolution borehole imaging system designed to provide 360-degree coverage of the borehole wall in various mud types, including oil-based and water-based systems. Pressure | 20
The NGI concept has evolved into commercial services like the Quanta Geo Photorealistic Reservoir Geology Service .