Measurement of formation gas saturation in cased wellbores...

Measurement of formation porosity using fast neutron spectroscop

Measurement of standoff corrected photoelectric factor

Measuring wellbore diameter with an LWD instrument using...

Method and apparatus for a downhole fluorescence spectrometer

Method and apparatus for a downhole fluorescence spectrometer

Method and apparatus for an improved formation density...

Method and apparatus for analyzing a downhole fluid using a...

Method and apparatus for analyzing well fluids by photon irradia

Method and apparatus for anomalous radioactive deposition compen

Method and apparatus for composition analysis in a logging...

Method and apparatus for correcting natural gamma ray measuremen

Method and apparatus for detecting and quantifying radioactive m

Method and apparatus for detecting while drilling...

Method and apparatus for determination of temperature, neutron a

Method and apparatus for determining aluminum concentration...

Method and apparatus for determining clay counter-ion concentrat

Method and apparatus for determining density of earth formations

Method and apparatus for determining elemental concentrations fo

Method and apparatus for determining flow characteristics within