Measurement of standoff corrected photoelectric factor

Measurement of the effective photo-electric absorption cross sec

Measuring the weight on a drill bit during drilling...

Measuring wellbore diameter with an LWD instrument using...

Method an system of geophysical exploration

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 components of hydrocarbon gas

Method and apparatus for analyzing well fluids by photon irradia

Method and apparatus for anomalous radioactive deposition compen

Method and apparatus for characterizing kerogens

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

Method and apparatus for conducting remote surveys of the earth'

Method and apparatus for correcting natural gamma ray measuremen

Method and apparatus for detecting alpha-emitting substances

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