Zonal isolation using elastic memory foam

Details Zonal isolation using elastic memory foam Zonal isolation using elastic memory foam

2007-07-17

2007-07-17

Bates, Zakiya W. (Department: 3676)

Wells

Processes

Placing or shifting well part

C166S118000, C166S180000, C166S206000

Reexamination Certificate

active

10937027

ABSTRACT:
A method and apparatus for forming an elastic memory foam into an expansion element with an outer diameter larger than a borehole, heating the expansion element to its transition temperature and compressing it to a smaller run-in diameter, cooling the compressed expansion element below its transition temperature and running it into the borehole, then raising the expansion element to its transition temperature to cause it to expand and seal against the borehole wall. Expansion can be enhanced by expanding a mandrel on which the expansion element is formed.

REFERENCES:
patent: 4454756 (1984-06-01), Sharp et al.
patent: 4515213 (1985-05-01), Rogen et al.
patent: 6431282 (2002-08-01), Bosma et al.
patent: 6446717 (2002-09-01), White et al.
patent: 6668928 (2003-12-01), Brothers
patent: 2002/0157831 (2002-10-01), Kurlenya et al.
patent: 2004/0055760 (2004-03-01), Nguyen
patent: 2004/0164499 (2004-08-01), Murakami et al.

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