Method of sealing an annular space in a wellbore

Details Method of sealing an annular space in a wellbore Method of sealing an annular space in a wellbore

2005-11-18

2009-08-25

Bates, Zakiya W. (Department: 3676)

Wells

Processes

Cementing, plugging or consolidating

C166S293000, C166S300000

Reexamination Certificate

active

07578347

ABSTRACT:
A method of sealing a space in a wellbore formed in an earth formation comprises inserting a plurality of swellable particles into the space by pumping them in a carrier fluid, the particles being susceptible to swelling upon contact with a selected fluid, and inducing the selected fluid to contact the swelleable particles whereby the swelleable particles swell so as to form a body of swollen particles in the space.

REFERENCES:
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patent: 5623993 (1997-04-01), Van Buskirk et al.
patent: 6517732 (2003-02-01), Brockoff et al.
patent: 2004/0168804 (2004-09-01), Reddy et al.
patent: 2004/0194971 (2004-10-01), Thomson
patent: 2338500 (1999-12-01), None
patent: WO03002227 (2003-09-01), None

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