Deep investigation induction logging with mirror image coil arra

Deep penetration well logging sonde

Deep penetration well logging system and method

Deep penetration well logging system and method using secondary

Detection of borehole currents due to a decentered...

Detection of subsurface resistivity contrasts with...

Determination of borehole geometry inside cased wells with...

Determination of dielectric properties with propagation resistiv

Determination of horizontal resistivity of formations utilizing

Determination of water or residual oil saturation in earth forma

Determination of water saturation in earth formations independen

Determination of water saturation in earth formations independen

Determining electrical conductivity of a laminated earth formati

Determining electrical conductivity of an earth layer

Determining formation anisotropy based in part on lateral...

Determining properties of earth formations using the...

Device and method for measurement by guided waves on a metal...

Device and method for measurement of resistivity outside of...

Device for scanning or detecting electromagnetic waves

Dielectric well logging system with at least three transmitter c