Study of photon attenuation coefficient in brine using MCNP code

• Main Author: Barbosa, Caroline Mattos
• Publication Date: 2015
• Other Authors: Salgado, Cesar Marques, Brandão, Luis Eduardo Barreira, Instituto de Engenharia Nuclear
• Format: Conference object
• Language: eng
• Source: Repositório Institucional do IEN
• Download full: http://carpedien.ien.gov.br:8080/handle/ien/2367
• topic: INAC 2015; MCNP-X code; Multiphase flows; NaI(TI)

In petroleum industry, multiphase flows are common and the relative salt content of the water component depends on the location of oil extraction. The salt present in the water component causes incrustations in the pipeline and may interfere in the flow measurement. This paper presents an elaborate model using MCNP code to simulate a narrow beam gamma ray source, a brine sample and a NaI(Tl) detector, with beam energies ranging from 59,54 keV to 662 keV. Through this model, we can relate the photon attenuation coefficient to the salinity of water. This model can be experimentally reproduced, and used to measure the salinity in situ without affecting the medium.