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. 05, 2019
Filed:
Sep. 21, 2017
Applicant:
Bristol, Inc., Watertown, CT (US);
Inventor:
Thomas Matthew Mills, Katy, TX (US);
Assignee:
BRISTOL, INC., Watertown, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 34/02 (2006.01); E21B 37/00 (2006.01); E21B 43/12 (2006.01); E21B 47/00 (2012.01); E21B 47/10 (2012.01); E21B 43/38 (2006.01); F04B 49/10 (2006.01); E21B 47/04 (2012.01); F04B 17/03 (2006.01); F04B 47/06 (2006.01); G01F 22/02 (2006.01);
U.S. Cl.
CPC ...
E21B 43/38 (2013.01); E21B 34/02 (2013.01); E21B 37/00 (2013.01); E21B 43/128 (2013.01); E21B 47/0007 (2013.01); E21B 47/10 (2013.01); F04B 49/103 (2013.01); F04B 49/106 (2013.01); E21B 47/042 (2013.01); F04B 17/03 (2013.01); F04B 47/06 (2013.01); G01F 22/02 (2013.01);
Abstract
A method of automatically washing a well casing of a progressing cavity (PC) pump system. The method includes disabling, via a controller, a normal speed control of a progressing cavity (PC) pump of the PC pump system, and closing, via the controller, a gas flow valve to stop upward fluid flow in an annulus of the well casing. The method further includes opening a wash valve to allow fluid from the wash fluid source into the well casing. Upon wash fluid accumulation within the annulus, the method further includes increasing the speed of the pump to begin flushing the well casing, and closing the wash valve.