Method and apparatus for generating fluid pressure pulses

Method and apparatus for generating fluid pressure pulses

Method and apparatus for improved communication in a wellbore ut

Method and apparatus for improved communication in a...

Method and apparatus for operating equipment in a remote locatio

Method and apparatus for providing improved pressure pulse chara

Method and apparatus for remote control of wellbore end devices

Method and apparatus for retrieving logging data from a downhole

Method and apparatus for suppressing drillstring vibrations

Method and apparatus for transmitting and processing data from w

Method and apparatus for transmitting information in a borehole

Method and apparatus for transmitting information in a borehole

Method and apparatus for transmitting information in a borehole

Method and device for seismic prospecting using a drilling...

Method and device for the acquisition of signals while drilling

Method and means for transmitting data through a drill string in

Method and tool for logging-while-drilling

Method for acoustic signal transmission in a drill string

Method for acoustic transmission of drilling data from a well

Method for compensating for remote clock offset