Fluidic valve and pulsing device

Details Fluidic valve and pulsing device Fluidic valve and pulsing device

1981-06-12

1983-12-06

Chambers, A. Michael

Fluid handling

Flow affected by fluid contact, energy field or coanda effect

Means to cause rotational flow of fluid

137813, 137830, 137831, 175 40, E21B 4712, G01V 140

Patent

active

044187211

ABSTRACT:
A high capacity fluidic valve is disclosed which is useful for creating psure pulses in a drill string for communicating diagnostic information from the bottom of a well bore to the surface during drilling. The device of the present invention comprises essentially a vortex chamber having an element therein which is capable of rapidly changing the flow through the chamber from radial to vortical. Flow throttling action in the valve is produced by the vortical flow in the chamber, thereby producing pressure pulses in the fluid stream flowing through the valve.

REFERENCES:
patent: 3198214 (1965-08-01), Lorenz
patent: 3331382 (1967-07-01), Horton
patent: 3515158 (1970-06-01), Utz
patent: 3638671 (1972-02-01), Harvey et al.
patent: 3993101 (1976-11-01), Tippetts et al.
patent: 4134100 (1979-01-01), Funke
patent: 4276943 (1981-07-01), Holmes
patent: 4291395 (1981-09-01), Holmes
patent: 4323991 (1982-04-01), Holmes et al.

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