Method and apparatus for investigating stand-off in a borehole

Method and apparatus for logging foam cement in cased boreholes

Method and apparatus for long term seismic monitoring

Method and apparatus for measuring acoustic mud velocity and...

Method and apparatus for measuring formation compression and she

Method and apparatus for measuring the quality of a cement to a

Method and apparatus for multipole acoustic logging

Method and apparatus for multipole acoustic wave borehole loggin

Method and apparatus for obtaining a display of a characteristic

Method and apparatus for seismic exploration

Method and apparatus for shear wave logging

Method and apparatus for shear wave logging

Method and apparatus for shear wave logging

Method and apparatus for sonic dip measurement

Method and apparatus for the acoustic inspection of a borehole f

Method and apparatus for the acoustic investigation of a casing

Method and apparatus for ultrasonic imaging of a cased well

Method and apparatus for well logging to obtain high-resolution

Method and apparatus of measuring ultrasonic time travel informa

Method and apparatus to determine permeability of rock formation