Formation electromagnetic parameters measuring tool using transm
Formation evaluation system and method
Frequency domain electromagnetic geophysical mapping...
Geophysical prospecting apparatus utilizing pulsed electromagnet
Ground global tomography (CGT) using modulation of the ionospher
High frequency induction log for determining resistivity and die
High frequency induction log for locating formation interfaces
High frequency induction method for locating the interface betwe
High sensitivity well logging system having dual transmitter ant
High transmitting power deep penetration well logging sonde
Imaging objects in a dissipative medium by nearfield electromagn
Increasing the resolution of electromagnetic tools for...
Induction dipmeter apparatus and method
Induction log sonde feedpipe having a plurality of tubes arrange
Induction logging antenna
Induction logging device with a pair of mutually perpendicular b
Induction logging sonde including a folded array apparatus havin
Induction logging sonde with metallic support
Induction logging sonde with metallic support having a coaxial i
Induction logging system featuring variable frequency correction