Apparatus for injecting material into a well-bore

Details Apparatus for injecting material into a well-bore Apparatus for injecting material into a well-bore

1981-05-18

1983-12-20

Purser, Ernest R.

Wells

Receptacles

166164, 222 82, 222214, 428422, 428492, E21B 2700

Patent

active

044211660

ABSTRACT:
Injector apparatus is disclosed which includes a sealed self-contained replaceable vessel containing an ejectable material to be injected into the well-bore during well logging operations. The vessel comprises a flexible-wall, collapsible tubular-like cartridge which can be removed from the mounting apparatus in the string of logging tools and replaced with a new cartridge. Motive force apparatus pressurizes the material in the cartridge and a valve device, which is actuated by a solenoid device, controls the flow of material exiting from the cartridge. Passageways and an orifice in the mounting apparatus directs the flow of material from the valve device to the well-bore.

REFERENCES:
patent: 2673844 (1954-03-01), Gilcrease
patent: 3366278 (1968-01-01), Fobes
patent: 3576691 (1971-04-01), Meyers
patent: 4220264 (1980-09-01), Gamadia
patent: 4324574 (1982-04-01), Fagan

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