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.
Patent No.:
Date of Patent:
Feb. 05, 2013
Filed:
Aug. 06, 2009
Applicant:
Britt O. Braddick, Houston, TX (US);
Inventor:
Britt O. Braddick, Houston, TX (US);
Assignee:
TIW Corporation, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 31/113 (2006.01);
U.S. Cl.
CPC ...
Abstract
A hydraulically powered fishing tool is provided for retrieving another tool or tubular stuck in a well. A tool housing is supported in a well on a work string, and the housing encloses a plurality of pistons () each movable in response to pressurized fluid transmitted through the work string. An anchor () axially fixes the position of the tool in the well, and a tool mandrel () is axially movable relative to tool housing when the anchor is set. A fishing device () engages the another tool or tubular, so that axial movement of the mandrel in response to the plurality of pistons dislodges the stuck tool or tubular.