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US 7,352,111 B2Granted
Electroactive polymer pumping system
AssigneeSchlumberger Technology Corporation
InventorTony P. Bagwell
Life of this patent
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Abstract
An electroactive polymer pump having an electroactive polymer mass forming a channel between an inlet and an outlet and an electrical distribution system in operational connection with the electroactive polymer mass for selectively energizing sections of the electroactive polymer mass to produce an oscillating intrusion of the sections of the EAP mass into the channel to pump a fluid through the channel.
Claims7
A method of pumping a fluid from a wellbore, the method comprising the steps of:
- providing a pump comprising an electroactive polymer (EAP) mass forming a channel between an inlet and an outlet, the EAP mass having a plurality of sections;
- connecting a production string to the outlet of the pump;
- running the pump on the production string into a wellbore;
- introducing a fluid into the channel;
- and
- selectively energizing the sections of the EAP mass to produce an oscillating intrusion of the sections into the channel to pump the fluid through the channel.
3 more elements
Dependencies are inferred from the claim text.