Mining Lateral Resistivity Video Imaging Logging System

Basic Information

Description

This system is designed for various boreholes in coal mines. In a single run it acquires borehole logging data (natural gamma, apparent resistivity, spontaneous potential, excitation potential), borehole video imaging/recording, trajectory data (azimuth and inclination) and borehole depth data.

Using self-developed specialized data analysis software, the system performs lithological stratification based on logging data variation, generates borehole columnar sections and trajectory diagrams, and combines geological data for comprehensive formation analysis (development of structures such as faults, collapsed columns and fractures; characteristics of water in-flow points; roof separation conditions, etc.).

The acquisition unit adopts a dual-core design with optoelectronic isolation, completely separating analog and digital circuits. With dedicated A/D anti-interference design and filtering modules, the software realizes borehole deviation calculation and quantitative analysis of exposed strata (layering, lithology, water-bearing properties and borehole-wall structural features). It produces borehole lithological columns, deviation cross-sections and plan views, and geological prediction profiles, achieving high detection efficiency.

It is now widely used in drainage boreholes, gas drainage holes, geological advanced-detection holes, structural coal-exploration holes, anchor holes and various other engineering boreholes of different diameters; it is suitable for boreholes at any inclination angle, including vertical holes.

Specification