Method and apparatus for gravel packing a well

Details Method and apparatus for gravel packing a well Method and apparatus for gravel packing a well

1984-12-10

1987-01-13

Novosad, Stephen J.

Wells

Processes

Graveling or filter forming

166 51, E21B 4304

Patent

active

046357254

ABSTRACT:
Method and apparatus for gravel packing a perforate liner (12) in a well including a wash pipe (34) carried by a cross-over tool (30) which has a pair of fluid passages (38-40) through which the flow of fluid may be reversed. The wash pipe (34) is mounted in a floating relation within the liner (12) for vertical relative movement and a double acting piston (62) mounted between the liner (12) and wash pipe (34) is responsive to fluid pressure within the liner (12) for moving the wash pipe (34) vertically relative to the liner (12).

REFERENCES:
patent: 1907862 (1933-05-01), Pearce
patent: 2155718 (1939-04-01), Layne et al.
patent: 3421586 (1969-01-01), Solum
patent: 3913676 (1975-10-01), Barbee, Jr. et al.
patent: 4018284 (1977-04-01), Perkins
patent: 4044832 (1977-08-01), Richard et al.

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