Method for evaluating core samples from x-ray energy attenuation

Method for evaluating moisture tensions of soils using spectral

Method for in situ determination of the cation exchange capaciti

Method for quantitative analysis of core samples

Method for uranium determination

Method of analyzing drilling fluids

Method of and apparatus for detecting radon

Method of and apparatus for determining the proportion of at lea

Method of and passive apparatus for detecting radon

Method of determining drilling fluid invasion

Method of porosity determination in porous media by x-ray comput

Methods and apparatus for determining gas-oil ratio in a geologi

Methods and apparatus for the downhole characterization of...

Methods of determining subterranean formation characteristics us

Petroleum stream analyzer

Photoelectric lithology factor and method of measurement

Process and devices for characterizing ground water...

Process for detecting and characterizing formation hydrocarbons

Radiometric methods and means

Radon collection apparatus and method