Invention Grant
US07365307B2 Sigma/porosity tools with neutron monitors 有权
具有中子监视器的Sigma /孔隙度工具

Sigma/porosity tools with neutron monitors
Abstract:
A tool for formation logging includes a support configured for movement in a borehole; a neutron source disposed on the support; a neutron monitor disposed on the support and configured to monitor an output of the neutron source; a gamma-ray detector disposed on the support and spaced apart from the neutron source; and a shielding material disposed between the gamma-ray detector and the neutron source.
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