Wells – Processes – With indicating – testing – measuring or locating
Reexamination Certificate
2006-06-30
2008-09-16
Bagnell, David J. (Department: 3672)
Wells
Processes
With indicating, testing, measuring or locating
C175S039000
Reexamination Certificate
active
07424910
ABSTRACT:
A downhole abrading tool has a body with a first end for connection to a drill string, a cutting end, an exterior surface, a drilling fluid passageway, a valve, and a chamber. Upon exposure of the chamber to a wellbore fluid pressure due to excessive wear on the cutting end, the valve opens. The opening of the valve permits drilling fluid to flow from the drilling fluid passageway, through the exterior surface and into the wellbore. The flow of drilling fluid through the exterior surface causes a pressure drop that is detected at the surface by an operator of the downhole abrading tool. The valve movement may also cause the release of taggants, or indicators, into the drilling fluid that may also be detected by the operator, either visually or with the aid of detection equipment.
REFERENCES:
patent: 2457960 (1949-01-01), Walker
patent: 2461164 (1949-02-01), Lewis
patent: 2468905 (1949-05-01), Warren, Jr.
patent: 2560328 (1951-07-01), Bielstein
patent: 2582312 (1952-01-01), Del Homme
patent: 2657909 (1953-11-01), Bielstein
patent: 3011566 (1961-12-01), Graham
patent: 3062302 (1962-11-01), Toth et al.
patent: 3155176 (1964-11-01), Bennett
patent: 3578092 (1971-05-01), Tesch et al.
patent: 3678883 (1972-07-01), Fischer
patent: 3714822 (1973-02-01), Lutz
patent: 3853184 (1974-12-01), McCullough
patent: 3865736 (1975-02-01), Fries
patent: 4189012 (1980-02-01), Garrett
patent: 4627276 (1986-12-01), Burgess et al.
patent: 4655300 (1987-04-01), Davis et al.
patent: 4744242 (1988-05-01), Anderson et al.
patent: 4785895 (1988-11-01), Davis et al.
patent: 4818153 (1989-04-01), Strandell et al.
patent: 4928521 (1990-05-01), Jardine
patent: 5202680 (1993-04-01), Savage
patent: 5305836 (1994-04-01), Holbrook et al.
patent: 5415030 (1995-05-01), Jogi et al.
patent: 5442981 (1995-08-01), Vegh
patent: 5794720 (1998-08-01), Smith et al.
patent: 5979571 (1999-11-01), Scott et al.
patent: 6109368 (2000-08-01), Goldman et al.
patent: 6131675 (2000-10-01), Anderson
patent: 6233524 (2001-05-01), Harrell et al.
patent: 6408953 (2002-06-01), Goldman et al.
patent: 6414905 (2002-07-01), Owens et al.
patent: 6443228 (2002-09-01), Aronstam et al.
patent: 6484824 (2002-11-01), Skyles
patent: 6631772 (2003-10-01), Palaschenko
patent: 6648082 (2003-11-01), Schultz et al.
patent: 6693553 (2004-02-01), Ciglenec et al.
patent: 6725947 (2004-04-01), Palaschenko et al.
patent: 6867706 (2005-03-01), Collette
patent: 6915848 (2005-07-01), Thomeer et al.
patent: 6923273 (2005-08-01), Terry et al.
patent: 6943697 (2005-09-01), Ciglenec et al.
patent: 6993432 (2006-01-01), Jenkins et al.
patent: 2004/0190374 (2004-09-01), Alft et al.
patent: 2005/0267686 (2005-12-01), Ward
patent: 2006/0000604 (2006-01-01), Jenkins et al.
patent: 2006/0099885 (2006-05-01), Lynde et al.
patent: 2007/0209802 (2007-09-01), Xu et al.
patent: 658323 (1951-10-01), None
patent: 1276311 (1972-06-01), None
patent: WO2005/113926 (2005-12-01), None
Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, Or the Declaration, Nov. 13, 2007, pp. 1-2, PCT/US2007/071926, European Patent Office.
International Search Report, Nov. 13, 2007, pp. 1-3, PCT/US2007/071926, European Patent Office.
Written Opinion of the International Searching Authority, Nov. 13, 2007, pp. 1-5, PCT/US2007/071926, European Patent Office.
Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, Or the Declaration, Jan. 8, 2008, pp. 1-2, PCT/US2007/071935, European Patent Office.
International Search Report, Jan. 8, 2008, pp. 1-7, PCT/US2007/071935, European Patent Office.
Written Opinion of the International Searching Authority, Jan. 8, 2008, pp. 1-9, PCT/US2007/071935, European Patent Office.
Office Action dated Feb. 19, 2008 in U.S. Appl. No. 11/479,606.
Office Action dated Feb. 20, 2008 in U.S. Appl. No. 11/496,663.
Lynde Gerald
Xu Yang
Bagnell David J.
Baker Hughes Incorporated
Greenberg & Traurig, LLP
Hutchins Cathleen R
Matheny Anthony F.
LandOfFree
Downhole abrading tools having a hydrostatic chamber and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Downhole abrading tools having a hydrostatic chamber and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Downhole abrading tools having a hydrostatic chamber and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3981111