Plug-dropping container for releasing a plug into a wellbore

Details Plug-dropping container for releasing a plug into a wellbore Plug-dropping container for releasing a plug into a wellbore

2006-06-06

2006-06-06

Gay, Jennifer H. (Department: 3672)

Wells

Processes

Placing or shifting well part

C166S075150, C166S087100, C166S097100, C166S330000

Reexamination Certificate

active

07055611

ABSTRACT:
A plug-dropping container used for releasing plugs or other objects into a wellbore during fluid circulation procedures. In one aspect, the plug-dropping container is used as part of a cementing head. The plug-dropping container comprises an elongated housing, and a canister disposed co-axially within the housing. The canister is configured to receive the plug, such as a drill pipe dart. A valve is disposed below the canister. The valve is movable from a plug-retained position where the plug is blocked, to a plug-released position where the plug may be released into the wellbore there below. In the plug-retained position, fluid is permitted to flow through the canister-housing annulus and around the valve.

REFERENCES:
patent: 1827257 (1931-10-01), Parker
patent: 2630179 (1953-03-01), Brown
patent: 3086587 (1963-04-01), Zandmer et al.
patent: 3444928 (1969-05-01), Pitts
patent: 3509913 (1970-05-01), Lewis
patent: 3955624 (1976-05-01), Fredd et al.
patent: 3971436 (1976-07-01), Lee
patent: 4033408 (1977-07-01), Fredd et al.
patent: 4164980 (1979-08-01), Duke
patent: 4421171 (1983-12-01), Haynes
patent: 4427065 (1984-01-01), Watson
patent: 4491177 (1985-01-01), Baugh
patent: 4674573 (1987-06-01), Bode
patent: 4782894 (1988-11-01), LaFleur
patent: 4917184 (1990-04-01), Freeman et al.
patent: 5236035 (1993-08-01), Brisco et al.
patent: 5338001 (1994-08-01), Godfrey et al.
patent: 5443122 (1995-08-01), Brisco
patent: 5553667 (1996-09-01), Budde et al.
patent: 5758726 (1998-06-01), Streich et al.
patent: 5833002 (1998-11-01), Holcombe
patent: 5890537 (1999-04-01), Lavaure et al.
patent: 5950724 (1999-09-01), Giebeler
patent: 5960881 (1999-10-01), Allamon et al.
patent: 6182752 (2001-02-01), Smith et al.
patent: 6206095 (2001-03-01), Baugh
patent: 6220360 (2001-04-01), Connell et al.
patent: 6279654 (2001-08-01), Mosing et al.
patent: 6311711 (2001-11-01), Skoglund
patent: 6672384 (2004-01-01), Pedersen et al.
patent: 2003/0024701 (2003-02-01), Simson
patent: 2003/0132002 (2003-07-01), Giebeler et al.
patent: 2003/0141052 (2003-07-01), Pedersen et al.
patent: 2004/0055741 (2004-03-01), Pedersen et al.
patent: 0 969 183 (2000-01-01), None
patent: 2378200 (2003-02-01), None
patent: 2392938 (2004-03-01), None
patent: WO 03/064810 (2003-08-01), None
U.S. Appl. No. 10/208,568, filed Jul. 30, 2002, Pedersen, et al., “Ball Dropping Assembly.”.
U.S. Appl. No. 10/081,062, filed Feb. 21, 2002, Pedersen, et al. “Ball Dropping Assembly.”.
Liner Hangers, Bestline Liner Systems, Inc., 2000/2001 General Catalog, Bakersfield, CA, E-mail: bestlinelinersystems.com, 3 Pages.
Cementing Manifold & Wiper Plugs, Applied Technologies, Inc. (ATI), 1 Page.
Liner Hangers, Open Hole Completion Systems, Baker Oil Tools, 6 Pages.
PCT International Search Report, International Application No. PCT/GB03/00307, dated May 21, 2003.
U.K. Search Report, Application No. GB 0415300.3, dated Nov. 19, 2004.
U.K. Office Action, Application No. GB0326103.9, dated Jan. 19, 2005.

Affiliated with

Also associated with

Rating

Plug-dropping container for releasing a plug into a wellbore does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Plug-dropping container for releasing a plug into a wellbore, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plug-dropping container for releasing a plug into a wellbore will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3647135