Monte Carlo differential neutron sensitivity calculations for nuclear well-logging

Author

Couët, Benoit ; Watson, Charles

Author_Institution

Schlumberger-Doll Res., Ridgefield, CT, USA

Volume

40

Issue

4

fYear

1993

fDate

8/1/1993 12:00:00 AM

Firstpage

928

Lastpage

932

Abstract

The spatial response of neutron porosity measurements is of interest for understanding the physics of neutron logging tools. A generalized numerical technique using Monte Carlo simulation has been developed. It permits computations of sensitivity functions for essentially any type of nuclear well-logging measurement, including various neutron tools. Calculations of the sensitivity functions are implemented through modification of the MCNP Monte Carlo transport code. Analyses of the spatial responses of an epithermal logging tool using sensitivity function calculations are presented. The results are found to be in good agreement with the empirical data

Keywords

Monte Carlo methods; geophysical prospecting; geophysics computing; neutron detection and measurement; neutron transport theory; numerical analysis; porosity; MCNP Monte Carlo transport code; Monte Carlo differential neutron sensitivity calculations; empirical data; epithermal logging; generalized numerical technique; neutron porosity measurements; neutron tools; nuclear well-logging; sensitivity functions; spatial response; Atomic measurements; Geologic measurements; Geophysical measurements; Hydrogen; Monte Carlo methods; Neutrons; Nuclear measurements; Particle measurements; Physics; Spatial resolution;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.256687

Filename

256687