Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Reexamination Certificate
2007-07-31
2007-07-31
Hofsass, Jeffery (Department: 2612)
Communications: electrical
Wellbore telemetering or control
Using a specific transmission medium
C340S854400, C340S853100, C340S855400, C340S856400, C367S081000, C367S083000, C367S084000, C367S085000
Reexamination Certificate
active
10422440
ABSTRACT:
A mud pulse telemetry system comprises a surface located fluid supply line having a drilling fluid flowing therein. A non-venting pulser is disposed in the drilling fluid in the supply line, and the non-venting pulser is adapted to generate pressure fluctuations in the flowing drilling fluid. A downhole receiver in hydraulic communication with the non-venting pulser is adapted to detect the pressure fluctuations in the drilling fluid. A method for transmitting pressure signals from a surface location to a downhole location in a wellbore, comprises disposing a non-venting pulser in a surface located fluid supply line having a drilling fluid flowing therein. The non-venting pulser is actuated to generate pressure fluctuations in the flowing drilling fluid according to a predetermined encoding scheme. The pressure fluctuations are detected with a downhole receiver in hydraulic communication with the non-venting pulser.
REFERENCES:
patent: 3764968 (1973-10-01), Anderson
patent: 3958217 (1976-05-01), Spinnler
patent: 3982224 (1976-09-01), Patton
patent: RE30055 (1979-07-01), Claycomb
patent: 4166979 (1979-09-01), Waggener
patent: 4351037 (1982-09-01), Scherbatskoy
patent: 4630244 (1986-12-01), Larronde
patent: 4675852 (1987-06-01), Russell et al.
patent: 4686658 (1987-08-01), Davison
patent: 4703461 (1987-10-01), Kotlyar
patent: 4771408 (1988-09-01), Kotlyar
patent: 4785300 (1988-11-01), Chin et al.
patent: 4893285 (1990-01-01), Masson et al.
patent: 4953595 (1990-09-01), Kotlyar
patent: 4956823 (1990-09-01), Russell et al.
patent: 4982811 (1991-01-01), Hardee
patent: 5119344 (1992-06-01), Innes
patent: 5182731 (1993-01-01), Hoelscher et al.
patent: 5189645 (1993-02-01), Innes
patent: 5215152 (1993-06-01), Duckworth
patent: 5249161 (1993-09-01), Jones et al.
patent: 5667023 (1997-09-01), Harrell et al.
patent: 5691712 (1997-11-01), Meek et al.
patent: 5963138 (1999-10-01), Gruenhagen
patent: 6089332 (2000-07-01), Barr et al.
patent: 6219301 (2001-04-01), Moriarty
patent: 6714138 (2004-03-01), Turner et al.
patent: 2004/0035608 (2004-02-01), Meehan et al.
patent: 2096372 (1982-10-01), None
Eggers Heiko
Hahn Detlef
Peters Volker
Rouatbi Cedric
Baker Hughes Incorporated
Hofsass Jeffery
Madan Mossman & Sriram P.C.
Yacob Sisay
LandOfFree
Downlink pulser for mud pulse telemetry does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Downlink pulser for mud pulse telemetry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Downlink pulser for mud pulse telemetry will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3808087