Method and apparatus for a density indicator using pulsed...

Method and apparatus for a downhole antenna

Method and apparatus for a rigidly joined together and...

Method and apparatus for acoustic detection of mines and...

Method and apparatus for acoustic shear wave logging

Method and apparatus for acoustic well logging

Method and apparatus for acoustic well logging

Method and apparatus for acoustic well logging

Method and apparatus for acoustically investigating a casing...

Method and apparatus for aerial radioactivity surveying for...

Method and apparatus for analysing geological features

Method and apparatus for analyzing three-dimensional data

Method and apparatus for anisotropic vector plane wave...

Method and apparatus for anomalous radioactive deposition...

Method and apparatus for automatically identifying fault...

Method and apparatus for automatically producing...

Method and apparatus for azimuthal logging of shear waves in...

Method and apparatus for balancing the electrical output of...

Method and apparatus for beam steering and bessel shading of...

Method and apparatus for borehole logging