Device for generating acoustic pulses by implosion, inside a wel

Details Device for generating acoustic pulses by implosion, inside a wel Device for generating acoustic pulses by implosion, inside a wel

1984-11-28

1987-07-21

Kyle, Deborah L.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

181120, G01V 138, G01V 114

Patent

active

046823093

ABSTRACT:
A device for generating acoustic pulses by driving suddenly into a body lowered in a well a piston having a face in contact with the liquid contained in the well and adapted for sliding inside said body. The device comprises a valve securely fixed to the piston, a second piston and a hydraulic system disposed completely in the body and comprising principally a pump, electro-valves, an equalizing cylinder, a low pressure reservoir and supply circuits, for moving the valve and the piston to a set position and for immobilizing it intermittently.

REFERENCES:
patent: 4253539 (1981-03-01), Magneville
patent: 4303141 (1981-12-01), Pascouet

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