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:
Nov. 27, 2007
Filed:
Mar. 11, 2002
Elaine Hartman, Legal Representative, La Grande, OR (US);
Eric M. Moe, Seattle, WA (US);
Robert E. Breidenthal, Seattle, WA (US);
Jesse Rehr, Seattle, WA (US);
Elaine Hartman, legal representative, La Grande, OR (US);
Eric M. Moe, Seattle, WA (US);
Robert E. Breidenthal, Seattle, WA (US);
Jesse Rehr, Seattle, WA (US);
Centriflow LLC, Darien, CT (US);
Abstract
The production rate, useful life and operating efficiency of electric submergible pumping systems (ESP) is improved by operating the system so that the motor () is cooled by two passes of production. Production fluids remove waste heat from the motor () by passing the fluid in contact with the exterior of the motor (). The improved cooling permits the motor to be operated at a lower temperature improving life and efficiency, and/or to be operated at higher power at a similar temperature. Additionally, oversized and excess equipment is not required, further improving performance and economics for the user. In another aspect, the invention is a method of pumping fluids using a motor having vortex generators () on its exterior surfaces or on the interior surfaces of a surrounding shroud.