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

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

Method and apparatus for determining flow characteristics within

Method and apparatus for determining neutron characteristics of

Method and apparatus for determining silicon content of the...

Method and apparatus for determining the concentration of a heav

Method and apparatus for determining the depth of a gamma emitti

Method and apparatus for determining the thermal neutron...

Method and apparatus for determining the thermal neutron...

Method and apparatus for determining well fluid flow velocity us