Electric and electro-hydraulic control systems for subsea and re

Electrical connector for borehole telemetry apparatus

Electrical submersible pump cable

Electro optic high temperature well bore modulator

Electromagnetic and acoustic repeater and method for use of same

Electromagnetic borehole telemetry system incorporating a...

Electromagnetic borehole telemetry system incorporating a...

Electromagnetic MWD telemetry system incorporating a current...

Electromagnetic power and communication link particularly...

Electromagnetic resistivity tool and method for use of same

Electromagnetic signal pickup apparatus and method for use...

Electromagnetic signal pickup device

Electromagnetic signal repeater and method for use of same

Electromagnetic telemetry apparatus and methods for...

Electromagnetic wellbore telemetry system for tubular strings

Electromagnetic wellbore telemetry system for tubular strings

Electromagnetic-to-acoustic and acoustic-to-electromagnetic...

Electronic device enabling hardware and methods

Electronic well tools and multi-channel recorder