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:
Nov. 10, 2015

Filed:

Jul. 01, 2011
Applicants:

Jose Hurtado, Houston, TX (US);

John C. Wolf, Houston, TX (US);

Inventors:

Jose Hurtado, Houston, TX (US);

John C. Wolf, Houston, TX (US);

Assignee:

Smith International, Inc., Houston, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 34/00 (2006.01); E21B 34/14 (2006.01); E21B 34/10 (2006.01);
U.S. Cl.
CPC ...
E21B 34/14 (2013.01); E21B 34/00 (2013.01); E21B 34/103 (2013.01); E21B 2034/002 (2013.01); E21B 2034/007 (2013.01);
Abstract

A downhole isolation tool including a sub, a sleeve disposed in the sub, and a ball seat mandrel coupled to the sleeve, the ball seat mandrel having at least two ball seats axially aligned with at least two throughbores disposed within the ball seat mandrel. A method of isolating a well, the method including running a downhole isolation system into a well, wherein the downhole isolation system includes a first downhole isolation tool, the first downhole isolation tool including a first sub, a first sleeve disposed in the sub, and a first ball seat mandrel coupled to the first sleeve, the first ball seat mandrel having at least two ball seats of a first size axially aligned with at least two throughbores disposed within the first ball seat mandrel, dropping at least two balls of a first size into the well, and seating the at least two balls of the first size in the at least two ball seats of the first ball seat mandrel.


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