Actuator

Details Actuator Actuator

E - Fixed Constructions

21

B

166/2, 166/42

E21B 34/08 (2006.01) E21B 34/10 (2006.01)

Patent

CA 1136037

ACTUATOR Abstract of the Disclosure An actuator for shifting a mandrel. The actuator is responsive to external ambient pressure and to internal ambient pressure and a differential in pressure shifts a mandrel carried by the actuator against the resilience of a spring. The actuator is disclosed as a part of a testing system. The system employs a packer, a foot valve, a landing nipple and a transducer fitting, all of which may be first run and landed in the well. The tubing is then run with a circulating tool and dump valve. The actuator of this invention may be run on the free end of the tubing, landed in and sealed with the bore wall through the packer and carry the actuator for opening and closing the foot valve.

350942

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