Downhole abrading tools having excessive wear indicator

Details Downhole abrading tools having excessive wear indicator Downhole abrading tools having excessive wear indicator

2006-06-30

2009-02-03

Bagnell, David J (Department: 3672)

Boring or penetrating the earth

With bit wear signal generating

Reexamination Certificate

active

07484571

ABSTRACT:
A downhole abrading tool having a body with a first end for connection to a drill string, a cutting end, a drilling fluid passageway, a restrictor disposed within drilling fluid passageway, and an indicator chamber is disclosed. Upon exposure of the indicator chamber to a well environment due to excessive wear on the cutting end, the restrictor is actuated. Actuation of the restrictor restricts the flow of drilling fluid from the drilling fluid passageway into the well environment. The restriction of flow of drilling fluid from the drilling fluid passageway causes a pressure increase in the drilling fluid flowing through the well that can detected by an operator of the downhole abrading tool. The pressure increase provides an indication to the operator of excessive wear on the cutting end of the downhole abrading tool so that the downhole abrading tool can be removed from the well and replaced.

REFERENCES:
patent: 2422031 (1947-06-01), Merten
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), Fisher
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: 4785894 (1988-11-01), Davis 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, 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. 12, 2008 in U.S. Appl. No. 11/479,231, U.S. Patent and Trademark Office.
Office Action dated Feb. 19, 2008 in U.S. Appl. No. 11/479,606, U.S. Patent and Trademark Office.
Office Action dated Feb. 20, 2008 in U.S. Appl. No. 11/496,663, U.S. Patent and Trademark Office.
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.

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