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:
Apr. 11, 2017

Filed:

Dec. 09, 2013
Applicant:

Halliburton Energy Services, Inc., Houston, TX (US);

Inventors:

Benjamin Luke Butler, North Perth, AU;

Cole Alexander Benson, West Leederville, AU;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 41/00 (2006.01); E21B 23/12 (2006.01); E21B 17/00 (2006.01); E21B 23/00 (2006.01);
U.S. Cl.
CPC ...
E21B 41/0035 (2013.01); E21B 17/006 (2013.01); E21B 23/002 (2013.01);
Abstract

Disclosed are expandable bullnose assemblies. One bullnose assembly includes a body and a bullnose tip arranged at a distal end of the body, a compression ring arranged about an exterior of the body and configured to axially translate with respect to the body upon being actuated, and a plurality of collet fingers coupled to and extending between the compression ring and the bullnose tip, each collet finger being pre-compressed such that each collet finger is predisposed to bow radially outwards, wherein, when the compression ring is actuated, the plurality of collet fingers move radially outward from a first diameter to a second diameter that is greater than the first diameter.


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