The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 2013
Filed:
Jun. 07, 2010
Lance I. Fielder, Sugar Land, TX (US);
Christian Carstensen, Aachen, DE;
Rik DE Doncker, Leuven, BE;
Helge Brauer, Cologne, DE;
Holger Franz, Aachen, DE;
Johannes Schmidt, Aachen, DE;
Benjamin Eduard Wilkosz, Aachen, DE;
Lance I. Fielder, Sugar Land, TX (US);
Christian Carstensen, Aachen, DE;
Rik De Doncker, Leuven, BE;
Helge Brauer, Cologne, DE;
Holger Franz, Aachen, DE;
Johannes Schmidt, Aachen, DE;
Benjamin Eduard Wilkosz, Aachen, DE;
Zeitecs B.V., Rijswijk,, NL;
Abstract
A method of unloading liquid from a reservoir includes deploying a pumping system into a wellbore to a location proximate the reservoir using a cable. The pumping system includes a multi-section motor, an isolation device, and a pump. The method further includes supplying a power signal from the surface to the motor via the cable and sequentially operating each section of the motor to mimic a multi-phase motor, thereby driving the pump and lowering a liquid level in the tubular string to a level proximate the reservoir.