Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Reexamination Certificate
2007-05-29
2007-05-29
Wong, Albert K. (Department: 2612)
Communications: electrical
Wellbore telemetering or control
Using a specific transmission medium
C340S854400, C340S853300, C340S853700, C455S041100
Reexamination Certificate
active
11112943
ABSTRACT:
A slickline data transmission system for a high pressure oil-field well comprises inductive couplers at opposite ends of a slickline in order to establish real-time radio communication between down-the-hole logging toolstrings and supervisory control and data acquisition equipment on the surface. A frequency shift keyed (FSK) carrier centered around radio is used to send data up to the surface and commands back down to the toolstring. The toolstring itself can be a conventional one with a TDMA interface originally intended to be memory-dumped when the toolstring is returned to the surface.
REFERENCES:
patent: 4006315 (1977-02-01), Halstead
patent: 5894104 (1999-04-01), Hedberg
Wikipedia, wireline definition last edited Dec. 18, 2006.
Bausov Igor
Bonnin Eduardo
Gibson Dennis
Howard John G.
Sanchez Tito Leroy
Main Richard B.
Wong Albert K.
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