Side wall clamp for downhole tools

Details Side wall clamp for downhole tools Side wall clamp for downhole tools

1981-03-11

1982-12-28

Purser, Ernest R.

Wells

Expansible anchor or casing

Spring set

166212, 166206, E21B 2300

Patent

active

043656684

ABSTRACT:
A side wall clamp is disclosed for use in conjunction with downhole tools, the clamp having a fail-safe mechanism which permits unclamping of the tool from the bore hole wall even if the clamp actuator means is inoperative, by exerting upward pull on the wire line or drill string to which the tool is attached.

REFERENCES:
patent: 2053698 (1936-09-01), Church
patent: 2358470 (1944-09-01), Oswald
patent: 2511508 (1950-06-01), McClinton
patent: 2692648 (1952-01-01), Simmons
patent: 2748872 (1956-06-01), Johnston

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