Rotary downlink system

Details Rotary downlink system Rotary downlink system

2007-11-20

2007-11-20

Wong, Albert K. (Department: 2612)

Communications: electrical

Wellbore telemetering or control

Selective control of subsurface equipment

C340S854400, C324S166000, C166S250010

Reexamination Certificate

active

10799817

ABSTRACT:
A method for downlink communication with a downhole tool having a mud-powered downhole motor that includes receiving a sensor signal related to a rotational speed of a rotor in the mud-powered downhole motor, and interpreting the sensor signal to derive a downlink signal.

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patent: 6267185 (2001-07-01), Mougel et al.
patent: 6419014 (2002-07-01), Meek et al.
patent: 6714138 (2004-03-01), Turner et al.
patent: 2003/0016164 (2003-01-01), Finke et al.

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