Surge reduction bypass valve

Details Surge reduction bypass valve Surge reduction bypass valve

2007-11-27

2007-11-27

Bagnell, David (Department: 3672)

Wells

Processes

Placing or shifting well part

C166S373000, C166S334400, C166S332800

Reexamination Certificate

active

11167487

ABSTRACT:
Methods and apparatus are provided for reducing surge pressure while running casing into a wellbore. The apparatus includes a running string for running casing having a diverter tool therein. The diverter tool has one or more bypass ports between its upper and lower end which are normally closed. In operation, the diverter tool is automatically cycled between the open and closed positions of the bypass ports during a casing running operation. A pressure event inside the diverter tool deactivates the cyclic opening and closing function of the bypass port.

REFERENCES:
patent: 3457994 (1969-07-01), Stachowiak
patent: 3461962 (1969-08-01), Harrington
patent: 3695293 (1972-10-01), Zeuner
patent: 3997009 (1976-12-01), Fox
patent: 4113012 (1978-09-01), Evans et al.
patent: 4324293 (1982-04-01), Hushbeck
patent: 4403659 (1983-09-01), Upchurch
patent: 4415036 (1983-11-01), Carmody et al.
patent: 4452313 (1984-06-01), McMahan
patent: 4531587 (1985-07-01), Fineberg
patent: 5443129 (1995-08-01), Bailey et al.
patent: 5465787 (1995-11-01), Roth
patent: 5609178 (1997-03-01), Hennig et al.
patent: 5743331 (1998-04-01), Adkins et al.
patent: 5960881 (1999-10-01), Allamon et al.
patent: 6082459 (2000-07-01), Rogers et al.
patent: 6102126 (2000-08-01), Huber et al.
patent: 6173795 (2001-01-01), McGarian et al.
patent: 6263969 (2001-07-01), Stoesz et al.
patent: 6386289 (2002-05-01), Patel
patent: 6520257 (2003-02-01), Allamon et al.
patent: 6543532 (2003-04-01), Estep et al.
patent: 6571876 (2003-06-01), Szarka
patent: 6820697 (2004-11-01), Churchill
patent: 7108071 (2006-09-01), Freiheit et al.
patent: 7134488 (2006-11-01), Tudor et al.
patent: 2002/0189814 (2002-12-01), Freiheit et al.
patent: 2003/0024706 (2003-02-01), Allamon
patent: 2003/0136563 (2003-07-01), Allamon et al.
patent: 2004/0000406 (2004-01-01), Allamon et al.
patent: 2004/0000407 (2004-01-01), Hernandez et al.
patent: 2004/0035578 (2004-02-01), Ross et al.
patent: 2004/0256113 (2004-12-01), LoGiudice et al.
patent: WO 02/088514 (2002-11-01), None
GB Search Report dated Aug. 11, 2005.

Affiliated with

Also associated with

Rating

Surge reduction bypass valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Surge reduction bypass valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surge reduction bypass valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3822193