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:
Feb. 16, 2021

Filed:

Nov. 07, 2019
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/26 (2006.01); E21B 33/124 (2006.01); E21B 33/13 (2006.01); E21B 49/00 (2006.01);
U.S. Cl.
CPC ...
E21B 43/26 (2013.01); E21B 33/124 (2013.01); E21B 33/13 (2013.01); E21B 49/006 (2013.01);
Abstract

A cylindrical drum with a fluid inlet is configured to be connected to a downhole end of a fluid conduit. The cylindrical drum has an outer surface along which is the fluid inlet. The cylindrical drum has a center and an inner surface. Fluid nozzles fluidically connect to an interior of the cylindrical drum and are positioned around the outer circumference of the cylindrical drum. The fluid nozzles are positioned to direct fluid away from the cylindrical drum. A rotatable collar is positioned in the center of the cylindrical drum. The rotatable collar has an outer surface parallel to the inner surface of the cylindrical drum. Sleeve plates are positioned between the inner surface of the cylindrical drum and the outer surface of the rotatable collar. Each of the sleeve plates defines a hole with a diameter smaller than a diameter of a corresponding dropped ball.


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