Wells – Processes – Graveling or filter forming
Patent
1983-12-22
1986-02-18
Leppink, James A.
Wells
Processes
Graveling or filter forming
166 51, 166377, E21B 4304
Patent
active
045707146
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 for supporting and releasing a gravel screen assembly before or after treating the formation without rotating the pipe string. The crossover/release assembly includes crossover ports providing a downward flow path for the treating fluid, annular veins providing an upward flow path for the returns, and a reciprocating piston reciprocating upon effecting hydraulic pressure on the piston for releasing the gravel screen assembly.
REFERENCES:
patent: 3126963 (1964-03-01), Graham
patent: 3134439 (1964-05-01), Shields, Jr.
patent: 3421586 (1969-01-01), Solum
patent: 3726343 (1973-04-01), Davis, Jr.
patent: 4018284 (1977-04-01), Perkins
patent: 4175778 (1979-11-01), Nunez et al.
patent: 4424864 (1984-01-01), Logan
Menard Raymond A.
Oneal Dean
Turner Dewayne
Dang Hoang C.
Duzan James R.
Flanagan, III Eugene L.
GEO Vann, Inc.
Leppink James A.
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