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:
Nov. 15, 2011
Filed:
Aug. 28, 2008
Applicants:
Joachim Treviranus, Winsen/Aller, DE;
Sven Kreuger, Winsen/Aller, DE;
Inventors:
Joachim Treviranus, Winsen/Aller, DE;
Sven Kreuger, Winsen/Aller, DE;
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 7/08 (2006.01); E21B 10/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus for use in a wellbore is provided that in one aspect includes: a drilling assembly configured to carry a first drill bit at an end thereof, a second drill bit disposed uphole of the first drill bit, and a connection device that is configured to selectively connect the second drill bit to the drilling assembly and disconnect the second drill bit from the drilling assembly.