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. 23, 2021
Filed:
Oct. 18, 2019
Applicant:
Baker Hughes, a GE Company, Llc, Houston, TX (US);
Inventors:
David Tanner, Broken Arrow, OK (US);
Ryan Semple, Owasso, OK (US);
Assignee:
Baker Hughes, a GE Company, LLC, Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/12 (2006.01); G05D 16/04 (2006.01); G05D 16/06 (2006.01); F16K 15/04 (2006.01); F04D 13/08 (2006.01); F04D 29/06 (2006.01); F04D 7/04 (2006.01);
U.S. Cl.
CPC ...
G05D 16/0402 (2019.01); E21B 43/128 (2013.01); F04D 13/086 (2013.01); F04D 29/061 (2013.01); F16K 15/04 (2013.01); G05D 16/06 (2013.01); F04D 7/04 (2013.01);
Abstract
A submersible well pump assembly has a communication path for communicating motor lubricant to an interior of a pressure equalizer. A check valve passage with a check valve leads from the communication path to a pressure equalizing chamber. A dip tube has a dip tube inlet at the check valve passage below the check valve and a dip tube outlet in the pressure equalizing chamber. The dip tube is filled with motor lubricant to retard migration of well fluid from the pressure equalizing chamber into contact with the check valve.