Method and apparatus for downlink communication using...

Details Method and apparatus for downlink communication using... Method and apparatus for downlink communication using...

2011-07-19

2011-07-19

Wong, Albert K (Department: 2612)

Communications, electrical: acoustic wave systems and devices

Wellbore telemetering

Through well fluids

C340S854300, C175S045000, C367S082000

Reexamination Certificate

active

07983113

ABSTRACT:
The present invention provides a method and system in which signals from the surface are sent by changing flow rate of the drilling fluid supplied to the drill string during drilling of a wellbore. The signals are sent based on a fixed or dynamic time period schemes so that the sent signals cross a dynamic threshold value in a known manner. A controller downhole sets the dynamic threshold and determines the number of times a parameter, such as voltage, relating to the changes in the flow rate crosses the set dynamic threshold. Based on the number of the number of crossings and/or the number of crossings and the timing of such crossings, the controller ascertains the signal sent from the surface for use downhole.

REFERENCES:
patent: 2901685 (1959-08-01), Alder
patent: 2964116 (1960-12-01), Peterson
patent: 2973505 (1961-02-01), Johannesen
patent: 3065416 (1962-11-01), Jeter
patent: 3302457 (1967-02-01), Mayes
patent: 3309656 (1967-03-01), Godbey
patent: 3693428 (1972-09-01), LePeuvedic et al.
patent: 3713089 (1973-01-01), Clacomb
patent: 3732728 (1973-05-01), Fitzpatrick
patent: 3736558 (1973-05-01), Cubberly, Jr.
patent: 3737843 (1973-06-01), LePeuvedic et al.
patent: 3739331 (1973-06-01), Godbey et al.
patent: 3764968 (1973-10-01), Anderson
patent: 3764969 (1973-10-01), Cubberly, Jr.
patent: 3764970 (1973-10-01), Manning
patent: 3770006 (1973-11-01), Sexton et al.
patent: 3800277 (1974-03-01), Patton et al.
patent: 3958217 (1976-05-01), Spinnler
patent: 3964556 (1976-06-01), Gearhart et al.
patent: 3971926 (1976-07-01), Gau et al.
patent: 3982224 (1976-09-01), Patton
patent: 4007805 (1977-02-01), Reber
patent: RE29734 (1978-08-01), Manning
patent: RE30055 (1979-07-01), Claycomb
patent: 4166979 (1979-09-01), Waggener
patent: 4351037 (1982-09-01), Scherbatskoy
patent: 4461359 (1984-07-01), Jones, Jr. et al.
patent: 4462469 (1984-07-01), Brown
patent: 4499563 (1985-02-01), Jurgens
patent: 4515225 (1985-05-01), Dailey
patent: 4628495 (1986-12-01), Peppers et al.
patent: 4630244 (1986-12-01), Larronde
patent: 4675852 (1987-06-01), Russell et al.
patent: RE32463 (1987-07-01), Westlake et al.
patent: 4686658 (1987-08-01), Davison
patent: 4698794 (1987-10-01), Kruger et al.
patent: 4703461 (1987-10-01), Kotlyar
patent: 4734892 (1988-03-01), Kotlylar et al.
patent: 4771408 (1988-09-01), Kotlyar
patent: 4785300 (1988-11-01), Chin et al.
patent: 4790393 (1988-12-01), Larronde
patent: 4796699 (1989-01-01), Upchurch
patent: 4847815 (1989-07-01), Malone
patent: 4914637 (1990-04-01), Goodsman
patent: 4915168 (1990-04-01), Upchurch
patent: 4953595 (1990-09-01), Kotlyar
patent: 4956823 (1990-09-01), Russell et al.
patent: 4982811 (1991-01-01), Hardee
patent: 5034929 (1991-07-01), Cobern et al.
patent: 5065825 (1991-11-01), Bardin et al.
patent: 5079750 (1992-01-01), Scherbatskoy
patent: 5113379 (1992-05-01), Scherbatskoy
patent: 5115415 (1992-05-01), Mumby et al.
patent: 5119344 (1992-06-01), Innes
patent: 5182730 (1993-01-01), Scherbatskoy
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: 5318409 (1994-06-01), London et al.
patent: 5357483 (1994-10-01), Innes
patent: 5375098 (1994-12-01), Malone et al.
patent: 5691712 (1997-11-01), Meek et al.
patent: 5740126 (1998-04-01), Chin et al.
patent: 5787052 (1998-07-01), Gardner et al.
patent: 5799733 (1998-09-01), Ringgenberg et al.
patent: 5812068 (1998-09-01), Wisler et al.
patent: 5834929 (1998-11-01), Dietz
patent: 5963138 (1999-10-01), Gruenhagen
patent: 6089332 (2000-07-01), Barr et al.
patent: 6105690 (2000-08-01), Biglin, Jr. et al.
patent: 6219301 (2001-04-01), Moriarty
patent: 6289998 (2001-09-01), Krueger et al.
patent: 6714138 (2004-03-01), Turner et al.
patent: 7222681 (2007-05-01), Jones et al.
patent: 2003/0016164 (2003-01-01), Finke et al.
patent: 2005/0056465 (2005-03-01), Virally et al.
patent: 2005/0209782 (2005-09-01), Moriarty
patent: 2096372 (1982-10-01), None
patent: 2156405 (1985-10-01), None
patent: 2004/062081 (2004-07-01), None

Affiliated with

Also associated with

Rating

Method and apparatus for downlink communication using... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for downlink communication using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for downlink communication using... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2627780