Soil gas radon and thoron measurements in some Venezuelan oilfields

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Palacios Fernandez, Daniel ; Fusella, Emidio ; Avila, Yininber ; Salas, Jhonny ; Teixeira, Diana ; Fernandez, Guillermo ; Sajo-Bohus, Laszlo ; Greaves, Eduardo ; Barros, Haydn ; Bolivar, Manuel ; Regalado, Jimmy

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY; v. 307, n. 1, p. 10-pg., 2016-01-01.

Resumo

Radon and thoron concentrations in soil gas were studied in some Venezuelan oilfields using passive and active methods. In some cases, investigations indicated a strong correlation between oil production areas and the intensity of radon signals, while in others a decrease in radon concentration was observed. This behavior was explained on the basis of different geological structures of the associated reservoir traps. Geological faults associated with petroleum systems were well recognized by the radon and thoron anomalies. Possible conduits and sources responsible for the occurrence of natural gas in a river and in an aquifer were identified and localized. (AU)

• Processo FAPESP: 13/13238-5 - Medidas de concentração de radônio (222Rn, 220Rn) e descendentes no ar empregando detector LR-115 em câmara de difusão: desenho, construção e auto-calibração. Método semi-empírico para determinar atividades gama em amostras ambientais
• Beneficiário: Elisabeth Mateus Yoshimura
• Modalidade de apoio: Auxílio à Pesquisa - Pesquisador Visitante - Internacional