LandOfFree - US Patents - Listing for Communications, electrical: acoustic wave systems and devices,Wellbore telemetering,Through drill string or casing

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Acoustic data transmission method

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Acoustic data transmission method

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Acoustic data transmission through a drillstring

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Acoustic telemetry system with drilling noise cancellation

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Acoustic transmission system

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Acoustic transmitter and method to produce essentially longitudi

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Active reduction of tool borne noise in a sonic logging tool

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Alarm system for measurement while drilling oil wells

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Analog circuit for controlling acoustic transducer arrays

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Apparatus and method for logging wells while drilling

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Apparatus for receiving downhole acoustic signals

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Apparatus for well logging telemetry

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Apparatus, method and system for digitally transmitting...

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Borehole acoustic telemetry clock synchronization system

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Borehole acoustic telemetry system

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Borehole acoustic telemetry system synchronous detector

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Borehole acoustic telemetry system with phase shifted signal

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Borehole monitoring device and method

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Borehole telemetry system automatic gain control