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:
Jun. 01, 2021
Filed:
Sep. 13, 2018
Applicant:
David A. Webb, Mustang, OK (US);
Inventor:
David A. Webb, Mustang, OK (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
E21B 37/00 (2006.01); E21B 43/08 (2006.01); E21B 17/10 (2006.01);
U.S. Cl.
CPC ...
E21B 37/00 (2013.01); E21B 17/1078 (2013.01); E21B 43/08 (2013.01);
Abstract
A well hole cleaning tool includes a plurality of tubular subcomponents arranged in a string-like fashion, having a plurality of flapper valves disposed above a notched collar, a wash pipe shoe, a bit and a mill. An upper stabilizer is disposed above a lower stabilizer which in turn is disposed above a sand screen. When in operation, the tool creates a vacuum at the lower end which facilitates flow of debris and waste water upward and out of the well hole.