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.

Date of Patent:
Aug. 11, 2020

Filed:

Jul. 31, 2015
Applicant:

Schlumberger Technology Corporation, Sugar Land, TX (US);

Inventors:

Abhisek Robert Rao, Cuttack, IN;

Jerome Ang Sze Jiunn, Toa Payoh Central, SG;

David Milton Eslinger, Collinsville, OK (US);

Tony R. Morrison, Caney, KS (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/44 (2006.01); F04D 13/10 (2006.01); F04D 1/06 (2006.01); F04D 29/66 (2006.01);
U.S. Cl.
CPC ...
F04D 29/448 (2013.01); F04D 1/063 (2013.01); F04D 13/10 (2013.01); F04D 29/445 (2013.01); F04D 29/669 (2013.01);
Abstract

A technique employs a system and methodology for improving sand control in pumps. The technique may be used in centrifugal pumps by providing uniquely constructed rib feature to facilitate sand control and thus reduction of erosion due to sand in the pumped fluid. The improved sand control is useful in centrifugal pumps employed in a variety of oilfield applications, such as in electric submersible pumping systems positioned downhole in a wellbore to pump oil or other fluids. The rib feature may be used in combination with a shield and arranged along diffuser bowl walls or other diffuser walls within sequential pump stages.


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