Downhole surge pressure reduction and filtering apparatus

Details Downhole surge pressure reduction and filtering apparatus Downhole surge pressure reduction and filtering apparatus

2007-09-18

2007-09-18

Dang, Hoang (Department: 3672)

Wells

Processes

Cementing, plugging or consolidating

C166S157000, C166S177400, C166S205000, C166S227000, C166S236000, C166S242800

Reexamination Certificate

active

11245494

ABSTRACT:
The present invention provides a downhole cementing apparatus run into a borehole on a tubular. The apparatus is constructed on the pipe in such a way that pressure surge during run-in is reduced by allowing fluid to enter the pipe and utilize the fluid pathway of the cement. In one aspect of the invention, an inner member is provided that filters fluid as it enters the fluid pathway. In another aspect of the invention, various methods are provided within the cementing apparatus to loosen and displace sediment in the borehole prior to cementing.

REFERENCES:
patent: 436889 (1890-09-01), Coffin
patent: 1502696 (1924-07-01), Thomson
patent: 1572022 (1926-02-01), King
patent: 1839044 (1931-12-01), Minyard
patent: 1915136 (1933-06-01), Share
patent: 1964264 (1934-06-01), Mack
patent: 2090545 (1937-08-01), Moore
patent: 2190407 (1940-02-01), King
patent: 2214550 (1940-09-01), Edwards
patent: 2291371 (1942-07-01), Buchanan et al.
patent: 2335578 (1943-11-01), Carter
patent: 2340481 (1944-02-01), Lloyd et al.
patent: 2781774 (1957-02-01), Baker et al.
patent: 2978033 (1961-04-01), Pitcher et al.
patent: 3001585 (1961-09-01), Shiplet
patent: 3123517 (1964-03-01), Davis
patent: 3166132 (1965-01-01), Lenahan et al.
patent: 3277962 (1966-10-01), Flickinger et al.
patent: 3302722 (1967-02-01), Madeley, Sr.
patent: 3664421 (1972-05-01), Urbanosky
patent: 3760878 (1973-09-01), Peevey
patent: 3895678 (1975-07-01), Wright et al.
patent: 4190113 (1980-02-01), Harrison
patent: 4760884 (1988-08-01), Haugen et al.
patent: 4791992 (1988-12-01), Greenlee et al.
patent: 4856590 (1989-08-01), Caillier
patent: 5234055 (1993-08-01), Cornette
patent: 5295537 (1994-03-01), Trainer
patent: 5327960 (1994-07-01), Cornette et al.
patent: 5366009 (1994-11-01), Cornette et al.
patent: 5526884 (1996-06-01), Lembcke
patent: 5960881 (1999-10-01), Allamon et al.
patent: 6966375 (2005-11-01), Pluchek et al.
patent: 0 617 195 (1994-09-01), None
patent: 2 543 213 (1983-03-01), None
patent: 2 543 213 (1984-09-01), None
patent: 2 338 009 (1999-12-01), None
patent: WO92/16717 (1992-10-01), None
EP Office Action, Application No. 04 105 609.4-1266, dated Dec. 20, 2005.
Norwegian Office Action, Norwegian Patent Application No. 20023965, dated Sep. 26, 2005.

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