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. 26, 2019

Filed:

Oct. 09, 2014
Applicant:

Weatherford Netherlands, B.v., Den Helder, NL;

Inventor:

Marcel Budde, Vlaardingen, NL;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/13 (2006.01); E21B 47/06 (2012.01); E21B 23/02 (2006.01); E21B 34/10 (2006.01); E21B 33/14 (2006.01); E21B 33/16 (2006.01);
U.S. Cl.
CPC ...
E21B 33/13 (2013.01); E21B 23/02 (2013.01); E21B 33/14 (2013.01); E21B 33/16 (2013.01); E21B 34/10 (2013.01); E21B 47/06 (2013.01);
Abstract

A method of pressure testing a wellbore during a cementing operation includes positioning a tubular within a wellbore, the tubular including a collar assembly at a distal end of the tubular; urging cement through the collar assembly using a plug, the plug including a releasable sealing member; releasing the sealing member from the plug; sealing the collar assembly using the sealing member; and pressurizing the tubular to a predetermined test pressure and holding the predetermined test pressure for a predetermined time period. In another embodiment, a cementing plug for use with a collar assembly includes a plug body having a bore; and a releasable sealing member coupled to the bore, wherein sealing member is configured to engage and seal the collar assembly, after release.


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