Mud solids immune clean fluid compensating system

Details Mud solids immune clean fluid compensating system Mud solids immune clean fluid compensating system

1989-09-27

1990-05-08

Neuder, William P.

Wells

Processes

Perforating, weakening, bending or separating pipe at an...

166383, 166 55, E21B 43116

Patent

active

049230107

ABSTRACT:
A piston of a well tool is disposed external to a tool housing, and within a space defined by an external sleeve and the housing, and pushes mud solids out of an open end of said space when the piston moves within the space of the tool. Due to the orientation of the tool within the borehole of an oil well, the open end of the space is subject to the force of gravity. Thus, when the piston moves downwardly within the space, mud solids disposed between the piston and the open end of said space are pushed out of the open end in response to the movement of the piston and the force of gravity.

REFERENCES:
patent: 4484632 (1984-11-01), Vann
patent: 4564076 (1986-01-01), Vann et al.
patent: 4667735 (1987-05-01), Salerni et al.

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