Induction logging utilizing resistive and reactive induced signa

Induction measurement in the presence of metallic, magnetic wall

Induction measuring device in the presence of metal walls

Induction method for determining dip angle in subterranean...

Induction well logging apparatus and method

Induction well logging apparatus with transformer coupled phase

Inductive logging system having multiple coils from which are se

Insulated sleeve with conductive electrodes to reduce...

Insulated sleeve with conductive electrodes to reduce...

Logging device loaded with dielectric material to minimize spuri

Logging earth formations with electromagnetic energy to determin

Logging of cased well by induction logging to plot an induction

Logging tool and method for measuring resistivity of different r

Logging tool with independently energizable transmitters

Logging while drilling apparatus with blade mounted electrode fo

Logging while drilling apparatus with multiple depth of resistiv

Long feature vertical or horizontal electrical conductor detecti

LWD resistivity device with inner transmitters and outer...

Magnetic head for conductivity imaging for use in boreholes

Magnetic sensing assembly for measuring time varying...