Abstract
We present the first hydrocarbon exploration project in Brazil which relies completely on non-seismic methods. First, we performed a high-resolution land magnetic and gamma-spectrometry survey with the objective of identifying micro-seepage anomalies, the first in Brazil with this purpose. A total of 120 km along 26 profiles of High Resolution Ground Magnetic (HRGM) and gamma-spectrometry data were acquired. The data were jointly interpreted and five anomalies were preliminarily interpreted and related to the location of hydrocarbon micro-seepages. These anomalies were also related to fault structures as observed in the residual magnetic anomaly map. Based on the microseepage anomalies, we designed a CSAMT/MT/TDEM survey aimed at better delineating structure and targets at depth. These data show the presence of anomalies that can be related to exploration targets. These anomalies will be tested by drilling later this year.
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