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Telemetry driving circuit

Communications: electrical – Wellbore telemetering or control – Pulse or digital signal transmission
Patent

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Telemetry network for downhole multistation seismic recording to

Communications: electrical – Wellbore telemetering or control – Including detail of subsurface signal storage
Patent

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Telemetry system for borehole drilling

Communications: electrical – Wellbore telemetering or control – In horizontal or inclined passage arrangement
Patent

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Telemetry system for borehole logging tools

Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Reexamination Certificate

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Telemetry system involving gigahertz transmission in a gas fille

Communications: electrical – Wellbore telemetering or control
Patent

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Telemetry system with a sending station using recursive filter f

Communications: electrical – Wellbore telemetering or control – Selective control of subsurface equipment
Patent

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Telemetry system with an insulating connector

Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Reexamination Certificate

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Telemetry transmitter optimization using time domain...

Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Reexamination Certificate

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Telemetry wave detection apparatus and method

Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Reexamination Certificate

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Telescopic data coupler

Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Reexamination Certificate

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Through formation electromagnetic telemetry system and method fo

Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Patent

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Time-domain signal cancellation in downhole telemetry systems

Communications: electrical – Wellbore telemetering or control – Pulse or digital signal transmission
Reexamination Certificate

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Toroidal coupled telemetry apparatus

Communications: electrical – Wellbore telemetering or control – Pulse or digital signal transmission
Patent

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Toroidal coupled telemetry apparatus

Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Patent

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Transducer for downhole drilling components

Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Reexamination Certificate

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Transmitter device with two insulating couplings for use in a bo

Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Patent

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Transmitting data through a downhole environment

Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Reexamination Certificate

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Transmitting power and telemetry signals on a wireline cable

Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Reexamination Certificate

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Two receiver noise loggers

Communications: electrical – Wellbore telemetering or control – In horizontal or inclined passage arrangement
Patent

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Two sensor impedance estimation for uplink telemetry signals

Communications: electrical – Wellbore telemetering or control – Modification of signal bandwidth – frequency – or circuit...
Reexamination Certificate

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