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:
Mar. 26, 2019
Filed:
Nov. 24, 2015
Applicant:
Abrado, Inc., Houston, TX (US);
Inventor:
David J. Ruttley, Marrero, LA (US);
Assignee:
ABRADO, INC., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 29/00 (2006.01); E21B 17/10 (2006.01); E21B 34/06 (2006.01); E21B 47/09 (2012.01); E21B 34/00 (2006.01);
U.S. Cl.
CPC ...
E21B 29/005 (2013.01); E21B 17/1021 (2013.01); E21B 34/06 (2013.01); E21B 47/09 (2013.01); E21B 2034/005 (2013.01);
Abstract
A casing mill having a main body with cutter bases with cutters mounted on the cutter bases. The cutter bases are moved radially by operating arms which are rotatably attached to the main body, which are in turn moved by an operating mechanism in response to fluid flow through. One or more of the operating arms are extended to form a cutout arm, which enables cutting an initial window in a casing string, from which milling can continue. The operating arms are mounted to the main body by pins, which are held in the main body by a pin retaining arrangement.