Utilização da Tomografia Elétrica Para Detecção de Dutos Enterrados em Zonas Submarinas

A geo-electric survey can be conducted for monitoring the position of pipeline in the sea floor. In this method an electric current is driven through the ground and the resulting potential differences are measured at the surface. Anomalous conditions or inhomogeneities within the sub-surface, such as electric better or poorer conducting materials, are inferred from the fact that they deflect the current and distort the normal potentials. Pipelines, despite their steel content, give resistive anomalies. This is caused by the concrete coating of the pipeline and the presence of gas and / or oil within the pipeline.