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:
Feb. 03, 2015
Filed:
Jan. 19, 2012
Applicants:
Dana Pettigrew, Airdrie, CA;
Wojciech A. Limanowka, Sherwood Park, CA;
Zoran Vukadin, Edmonton, CA;
Inventors:
Assignee:
Nexen Energy ULC, Calgary, AB, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/26 (2006.01); F04D 29/16 (2006.01); F04D 1/06 (2006.01); F04D 29/44 (2006.01);
U.S. Cl.
CPC ...
F04D 29/165 (2013.01); E21B 43/26 (2013.01); F04D 1/063 (2013.01); F04D 29/445 (2013.01);
Abstract
The present invention relates to a multistage centrifugal pump design, which has the diffusers, impellors, and a shaft, inserted within a high pressure housing, such that this assembly is fully enclosed within the housing, and the housing is of sufficient strength to be suitable for safe pressure containment of the fluids being pumped. This invention describes the technical details used to reconfigure the multistage centrifugal pump design to increase the discharge pressure capabilities higher than the 6,000 psig of current designs.