Abstract:
Resistivity methods (dipole-dipole resistivity profiling and vertical electrical sounding), ground penetrating radar (GPR) and electromagnetic methods (EM) were all used to characterize a hydrocarbon contaminated site. The anomalous conductive zone, situated in extremely resistive environment, was not well detected by EM method. Also, it was not able to yield the “shadow zone” on GPR profiles. However, very good results were obtained using 2D resistivity imaging, clearly identifying the conductivity anomaly.
Resistivity methods (dipole-dipole resistivity profiling and vertical electrical sounding), ground penetrating radar (GPR) and electromagnetic methods (EM) were all used to characterize a hydrocarbon contaminated site. The anomalous conductive zone, situated in extremely resistive environment, was not well detected by EM method. Also, it was not able to yield the “shadow zone” on GPR profiles. However, very good results were obtained using 2D resistivity imaging, clearly identifying the conductivity anomaly.
Reference:
GANDOLFO, Otávio Coaracy Brasil. Uma discussão sobre a eficácia de três métodos geofísicos na investigação de uma área contaminada por hidrocarbonetos. In: SIMPÓSIO BRASILEIRO DE GEOFÍSICA, 7., 2016, Ouro Preto. Anais… São Paulo: SBGf, 2016. 6 p.
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Document is password protected, ask Customer Service/Library-DAIT/IPT. Log into BiblioInfo/IPT-DAIT to access the text in PDF:
https://escriba.ipt.br/pdf_restrito/174267.pdf
