Method for measuring height of fill in a production tubing/casin

Method for monitoring fluid movement behind casing in oil and ga

Method for monitoring the hydraulic fracturing of a subterranean

Method for more accurately determining thermal neutron decay tim

Method for ore prospecting

Method for quality control of counting logs

Method for quantitative analysis of core samples

Method for radioactivity monitoring

Method for the determination of clay and mica concentrations in

Method for uranium determination

Method of analyzing drilling fluids

Method of analyzing oil and water fractions in a flow stream

Method of and apparatus for detecting radon

Method of and apparatus for determining the proportion of at lea

Method of and apparatus for measuring the mean concentration of

Method of and passive apparatus for detecting radon

Method of assaying uranium with prompt fission and thermal neutr

Method of calibrating multi-channel nuclear energy spectra

Method of collecting and processing spectral data for the earth'

Method of delineating naturally fractured intervals in subterran