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Monopole and cross-dipole waveform acoustic logging

It is patented in Russia. Russian Federation Patent N 11900 .

Designed to measure propagation parameters of compressional, shear and Stonely waves including measuring in low-velocity sections and through the casing string.

Used for open and cased holes filled with water- or oil-base mud; operates with a three-conductor logging cable up to 7000 meters long.

 

Applications:
 well section lithological identification;
 determination of rocks porosity factor and type;
 permeable formations identification;
 estimation of rocks elasticity modulus;
 evaluation of near-borehole zone acoustic anisotropy and filtration properties.