Patent 8196667 was granted and assigned to Schlumberger on June, 2012 by the United States Patent and Trademark Office.
A technique is provided for pumping fluids in a subterranean wellbore. A submersible pumping system can be deployed in a wellbore for moving desired fluids within the wellbore. The pumping system energizes the desired fluid movement by reciprocating a working fluid between expandable members.