Device for anchoring a probe in a well, by opening mobile arms

Details Device for anchoring a probe in a well, by opening mobile arms Device for anchoring a probe in a well, by opening mobile arms

1984-06-29

1986-10-14

Leppink, James A.

Wells

With electrical means

Electrical motor

166214, E21B 2304

Patent

active

046167030

ABSTRACT:
A device for anchoring a probe in a well by opening at least one arm pivotable with respect to the body of the probe by a spring moving a rod in a guide housing of the body and operating arms. In a closed position of the arm, the rod is locked by a bolt and a hydraulic fluid contained in a chamber and maintained at the same pressure as the pressure external to the probe is used for driving the bolt, when the pressure of this fluid is applied thereto intermittently by an electromagnetic valve.

REFERENCES:
patent: 2490350 (1949-12-01), Grable
patent: 2667223 (1954-01-01), Farris
patent: 3052297 (1962-09-01), Blydorp
patent: 3664416 (1972-05-01), Nicolas et al.
patent: 4407329 (1983-10-01), Huebsch et al.

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