Variable fluid passageway for a well tool

Details Variable fluid passageway for a well tool Variable fluid passageway for a well tool

1986-12-15

1987-12-01

Novosad, Stephen J.

Wells

Valves, closures or changeable restrictors

Fluid operated

166242, E21B 3410

Patent

active

047097620

ABSTRACT:
A well tool having a housing which includes a pressure reducing and fluid velocity reducing passageway. The passageway is formed by first and second vertically positioned members spaced from each other. The first member includes a tapered surface having plurality of grooves and ridges and the second member includes a tapered surface facing the grooves and ridges. Threads are provided for longitudinally moving one of the members relative to the other member for adjusting the space between the members thereby adjusting the size of the passage way. The one member may include an outer portion of the housing or may include a sleeve inside of the housing. A lock is provided for locking the first and second members together after adjustment of the size of the passageway.

REFERENCES:
patent: 3845818 (1974-11-01), Deaton
patent: 3938589 (1976-02-01), Mott
patent: 4007798 (1977-02-01), Gazda
patent: 4161219 (1984-02-01), Pringle
patent: 4325431 (1982-04-01), Akkerman
patent: 4373587 (1983-02-01), Pringle
patent: 4431054 (1984-02-01), Woodman
patent: 4454913 (1984-06-01), Guidry et al.
patent: 4569398 (1986-02-01), Pringle

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