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:
Jul. 14, 2020
Filed:
Jul. 27, 2015
Applicant:
Halliburton Energy Services, Inc., Houston, TX (US);
Inventors:
Gustav Edward Lange, Alberta, CA;
Bradley David Dunbar, The Woodlands, TX (US);
Ludovic Delmar, Braine-l'Alleud, BE;
Assignee:
Halliburton Energy Services, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/32 (2006.01); E21B 10/62 (2006.01); E21B 10/43 (2006.01);
U.S. Cl.
CPC ...
E21B 10/32 (2013.01); E21B 10/43 (2013.01); E21B 10/62 (2013.01);
Abstract
Methods, devices, and systems include a nested drill bit assembly, including an inner drill bit nested within an opening of an outer drill bit. The inner drill bit is removably coupled to the outer drill bit and the inner drill bit being co-axially positioned within the outer drill bit and accessible from a first end of the outer drill bit.