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. 26, 2019

Filed:

Mar. 15, 2018
Applicant:

Tiw Corporation, Houston, TX (US);

Inventor:

Britt O. Braddick, Houston, TX (US);

Assignee:

TIW Corporation, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 23/01 (2006.01); E21B 29/00 (2006.01); E21B 31/20 (2006.01); E21B 31/16 (2006.01); E21B 23/00 (2006.01); E21B 33/13 (2006.01);
U.S. Cl.
CPC ...
E21B 31/16 (2013.01); E21B 23/00 (2013.01); E21B 29/005 (2013.01); E21B 31/20 (2013.01); E21B 33/13 (2013.01);
Abstract

A system including a gripping tool and a rotary cutting tool may be used to grip a section of casing while cutting through a lower portion of the casing in a single trip. The gripping tool includes a mandrel with a flow bore extending therethrough, a slip actuator received on the mandrel, at least one slip corresponding to the slip actuator, a housing disposed around at least a proximal end of the mandrel, and a collet assembly disposed proximate the at least one slip. The rotary cutting tool is coupled to the mandrel. The gripping tool also includes a bearing assembly that enables the mandrel and the rotary cutting tool to rotate while the at least one slip is remains stationary engaging an interior wall of a casing. The system may include a hydraulic power section to help with setting the slips and removing the cut casing from the wellbore.


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