Pyrotechnic charge powered operating system for downhole tools

Details Pyrotechnic charge powered operating system for downhole tools Pyrotechnic charge powered operating system for downhole tools

1992-08-11

1994-05-31

Neuder, William P.

Wells

Processes

Placing or shifting well part

166 63, E21B 2304

Patent

active

053160878

ABSTRACT:
A downhole tool apparatus for use in a well includes a housing having a cylindrical chamber defined therein. A power piston is slidably disposed in the cylindrical chamber and divides the cylindrical chamber into first and second chamber portions on opposite sides of the power piston. First and second explosive charges are contained within the housing and communicated with the first and second chamber portions on opposite sides of the power piston. Firing of the first explosive charge moves the power piston in a first direction. Firing of the second explosive charge moves the power piston back in a second direction opposite the first direction. Thus, the operating power for a downhole tool is provided by selective firing of explosive charges which provide the operating pressure to move the power piston of the tool.

REFERENCES:
patent: 3186485 (1965-06-01), Owen
patent: 3217804 (1965-11-01), Peter
patent: 3233674 (1966-02-01), Leutwyler
patent: 3298437 (1967-01-01), Conrad
patent: 5062485 (1991-11-01), Wesser et al.
patent: 5211224 (1993-05-01), Bouldin

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