Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids
Reexamination Certificate
2007-02-20
2007-02-20
Wong, Albert K. (Department: 2612)
Communications, electrical: acoustic wave systems and devices
Wellbore telemetering
Through well fluids
C340S854300, C175S045000
Reexamination Certificate
active
10956708
ABSTRACT:
A device, method, and system for creating a pressure pulse from drilling fluid within a drill string in a down hole drill collar for enabling measurement-while drilling. The device and system are designed such that primarily laminar flow exists in the area surrounding the pulser apparatus. The method associated with the reproducible and essentially noise-free pulses occurs when a pulser bell is manipulated in an upward and downward direction by a combination of the solenoid activation of a bi-directional poppet to redirect the fluid flow from the pressure reservoir to and from a sliding pressure chamber and associated upper and lower flow connecting channels. The pulse or non-pulse is converted into a digital signal uphole by a pressure transducer in conjunction with a decoding algorithm. It is then displayed to the driller and oilfield operators as useful directional and formation information that help the oilfield operator for uphole decision making regarding directional drilling. Additional pulsers can be added to the tool so that higher data bit rates can be accomplished. These higher data bit rates will provide for more comprehensive data collection thereby reducing drilling costs and optimizing oil field yields. The higher bit rate allows for more sensors that can send additional and improved information uphole without the use of open hole wire line logging which is impossible to accommodate while drilling horizontally.
REFERENCES:
patent: 4742498 (1988-05-01), Barron
patent: 4869100 (1989-09-01), Birdwell
patent: 4901290 (1990-02-01), Feld
patent: 5040155 (1991-08-01), Feld
patent: 5103430 (1992-04-01), Jeter
patent: 5117398 (1992-05-01), Jeter
patent: 5134285 (1992-07-01), Perry
patent: 5250806 (1993-10-01), Reihn-Knudsen
patent: 5402068 (1995-03-01), Meador
patent: 5461230 (1995-10-01), Winemiller
patent: 5467832 (1995-11-01), Orban
patent: 5473579 (1995-12-01), Jeter
patent: 5517464 (1996-05-01), Lerner
patent: 5802011 (1998-09-01), Winters
patent: 5804820 (1998-09-01), Evans
patent: 5836353 (1998-11-01), Van Steenwyk
patent: 5901113 (1999-05-01), Masak
patent: 6002643 (1999-12-01), Tchakarov
patent: 6016288 (2000-01-01), Frith
patent: 6057784 (2000-05-01), Scaaf
patent: 6094401 (2000-07-01), Masak
patent: 6220371 (2001-04-01), Sharma
patent: 6300624 (2001-10-01), Yoo
patent: 6469637 (2002-10-01), Seyler
patent: 6583621 (2003-06-01), Prammer
patent: 6659200 (2003-12-01), Eppink
patent: 6714138 (2004-03-01), Turner
patent: 2004/0089475 (2004-05-01), Kruspe
patent: 0 681 090 (1995-11-01), None
patent: 0 781 422 (1997-07-01), None
patent: 2 157 345 (1985-10-01), None
patent: 2 328 459 (1999-02-01), None
patent: WO 00/57211 (2000-09-01), None
patent: WO 2004/044369 (2004-05-01), None
Kusko David
Masak-Rozier, legal representative Adrienne D.
Grune Guerry L.
Teledrill Inc.
Wong Albert K.
LandOfFree
Measurement while drilling bi-directional pulser operating... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Measurement while drilling bi-directional pulser operating..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement while drilling bi-directional pulser operating... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3868171