Gravel pack assembly

Wells – Means for forming filter beds

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Details

166278, 166318, E21B 4304, E21B 3406, E21B 3412

Patent

active

047337230

ABSTRACT:
A well apparatus connected to a pipe string extending down into a cased borehole for treating a formation comprising a packer assembly for sealing with the casing assembly and an integral crossover/release assembly attached to the packer assembly, and closing a channel between the tubing bore and the lower extremity of the gravel screen before or after treating the formation. Before releasing the screen, a channel exists between the tubing bore and a projecting wash pipe extending below the gravel screen. Releasing the screen closes the lower screen penetrating channel.

REFERENCES:
patent: 2409811 (1946-10-01), Taylor, Jr.
patent: 3913676 (1975-10-01), Barbee, Jr. et al.
patent: 3963076 (1976-06-01), Winslow
patent: 4018284 (1977-04-01), Perkins
patent: 4175778 (1979-11-01), Nunez et al.
patent: 4296807 (1981-10-01), Hendrickson et al.
patent: 4570714 (1986-02-01), Turner et al.

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