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:
Jan. 21, 2020
Filed:
Feb. 08, 2016
Applicant:
Varel International Ind., L.p., Carrollton, TX (US);
Inventors:
Kyle Nobile, White Settlement, TX (US);
Matthew Charles Stroever, Carrollton, TX (US);
David Michel Harrington, Dallas, TX (US);
Karl W. Rose, Burleson, TX (US);
Assignee:
VAREL INTERNATIONAL IND., L.P., Carrollton, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 10/16 (2006.01); E21B 10/52 (2006.01); E21B 29/00 (2006.01); E21B 10/08 (2006.01); E21B 33/12 (2006.01);
U.S. Cl.
CPC ...
E21B 10/52 (2013.01); E21B 10/08 (2013.01); E21B 10/16 (2013.01); E21B 29/00 (2013.01); E21B 29/002 (2013.01); E21B 33/1204 (2013.01);
Abstract
A method for drilling out a plug includes directing a hybrid rotary cone drill bit having a plurality of rotary cones into a borehole lined with a casing. A body of the plug is drilled out using milled teeth formed in the hybrid rotary cone drill bit. A slip of the plug is drilled out using cutter inserts secured into the rotary cone where the slip contacts the casing. The drilled out plug is directed up the borehole using a drilling fluid.