Caracterização de dutos na subsuperfície através de métodos eletromagnéticos não invasivos

Characterization of subsurface pipes using non-invasive electromagnetic methods

Abstract

This study addresses the characterization of subsurface pipelines using non-invasive electromagnetic methods, specifically with the use of the PROFILER EMP-400 conductivity meter. The measurement of soil electrical conductivity was conducted in Jequié, Bahia, where acquisition depths ranged from 0,1 to 15,0 meters. The methodology involved creating several electromagnetic profiles to detect anomalies, correlating each profile with a separate conductivity measurement using frequencies ranging from 1 to 16 kHz. The data were exported to Oasis Montaj software, and kriging interpolation was subsequently applied. This allowed the creation of electrical conductivity maps and longitudinal profiles, enabling the identification of pipelines with high conductivity, along with their respective depths and shapes. The data analysis demonstrated that the electromagnetic profiling technique is both effective and useful, providing a powerful non-destructive approach for subsurface components. Additionally, it generates accurate and timely data, making it essential for applications in environmental geology, hydrogeology, and mineral prospecting.