Fluid injector for tracer element well borehole injection

Details Fluid injector for tracer element well borehole injection Fluid injector for tracer element well borehole injection

1987-01-29

1988-09-20

Myracle, Jerry W.

Measuring and testing

Borehole or drilling

Downhole test

E21B 4710

Patent

active

047716355

ABSTRACT:
The present disclosure is directed to a tracer fluid injector apparatus adapted to be lowered in a well borehole. In a sonde preferably equipped with a radioactive detector, a fluid injector system is disclosed. It utilizes an isolated cartridge of cylindrical construction having two closed ends. A piston in the cartridge moves to assure compression of a tracer fluid in the cartridge. It is installed or removed from the sonde at a specified cavity in the sonde. When placed therein, a bayonet stabs into the cartridge to open the cartridge for controlled flow of tracer fluid. The bayonet connects through appropriate check valves to a pump which delivers tracer fluid at a controlled metering means including an orifice on the exterior of the sonde so that radioactive tracer fluid is carefully handled by the present apparatus. A method of operation is also set forth.

REFERENCES:
patent: 3406284 (1968-10-01), Young
patent: 4662218 (1987-05-01), Hawthorne

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