Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Patent
1998-07-17
2000-12-12
Horabik, Michael
Communications: electrical
Wellbore telemetering or control
Using a specific transmission medium
3408537, 3408548, 166 53, 166373, 367 82, G01V 300
Patent
active
061604925
ABSTRACT:
An electromagnetic telemetry system for changing the operational state of a downhole device (84) disclose. The system comprises an electromagnetic transmitter (76) disposed in a first wellbore (30) that transmits a command signal. An electromagnetic repeater (68) disposed in a second wellbore (38) receives the command signal and retransmits the command signal to an electromagnetic receiver (96) disposed in a third wellbore (46) that is remote from the first wellbore (30). The electromagnetic receiver (96) is operably connected to the downhole device (84) such that the command signal received from the electromagnetic repeater (68) is used to prompt the downhole device (84) to change operational states.
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Halliburton Energy Service,s Inc.
Herman Paul I.
Horabik Michael
Wong Albert K.
Youst Lawrence R.
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