Study of the Influence of Casing and Liquid Inside Oil Wells on the Response of Neutron Logging Tools

Edmilson M. Souza; Samanda C. A. Correa; Ademir X. Silva; Inaya C. B. Lima; Paula L. F. Rocha; Ricardo T. Lopes

doi:10.15866/irephy.v15i2.21879

Study of the Influence of Casing and Liquid Inside Oil Wells on the Response of Neutron Logging Tools

Edmilson M. Souza^(1*), Samanda C. A. Correa⁽²⁾, Ademir X. Silva⁽³⁾, Inaya C. B. Lima⁽⁴⁾, Paula L. F. Rocha⁽⁵⁾, Ricardo T. Lopes⁽⁶⁾

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Abstract

The influence of the casing and liquid inside the borehole in neutron porosity tool response is analyzed. For this, MCNPX simulation of neutron tool inside of a slim borehole was performed. The results showed that the presence of PVC casing and liquid inside the borehole reduces the tool response in about 73% for low porosities, and 90% for high porosities.
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Keywords

Nuclear Well Logging; Neutron Porosity; MCNPX; Casing Influence; He-3 Detector

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