Schlumberger Ngi Tool

: It works alongside other openhole logging tools to differentiate between reservoir rocks (like sandstones) and non-reservoir rocks (like shales) based on resistivity differences.

: Understanding the exact location of fluid boundaries helps engineers decide where to place perforations for maximum production. schlumberger ngi tool

This article details how the NGI concept revolutionized wireline logging by integrating multiple sensors into a significantly shorter and lighter toolstring. Key Features of the NGI Tool (Platform Express) : It works alongside other openhole logging tools

| Feature | Detail | |---------|--------| | | Integrated into the bottom hole assembly (BHA), typically 1–2 m behind the bit | | Sensors | Multiple azimuthally oriented scintillation detectors (usually 2 to 16 sectors) | | Measurement | Natural gamma ray API (total count rate) | | Azimuthal Coverage | 360° around the tool | | Data Transmission | Real-time via mud pulse telemetry (compensated for limited bandwidth) and high-resolution memory recording | | Temperature Rating | Up to 150°C (302°F) | | Pressure Rating | Up to 25,000 psi (172 MPa) | | Rotation Speed | Optimal from 60–200 RPM | Key Features of the NGI Tool (Platform Express)

Title: High-Resolution Borehole Imaging in Oil-Based Mud: Technical Evaluation of the Next Generation Imager (NGI) Tool 1. Introduction