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:
Oct. 05, 2004
Filed:
Sep. 03, 2002
Applicant:
Inventors:
Chad M. Daigle, Lafayette, LA (US);
Toby S. Baudoin, Lafayette, LA (US);
Thomas E. Falgout, Sr., Lafayette, LA (US);
Assignee:
Tomahawk Downhole, LLC, Lafayette, LA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 7/08 ;
U.S. Cl.
CPC ...
E21B 7/08 ;
Abstract
As a serial element of a drill string, the drill string is adjustably bent by rotating one end of the sub relative to the other end. The opposite ends rotate about a tilted center line such that in one rotational position the sub is straight. One half turn of one end relative to the other bends the sub to the maximum angle. Between straight and maximum bend, any angle can be achieved by control of the amount of the relative rotation between the opposite ends of the sub.