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. 03, 2020
Filed:
Oct. 02, 2018
Applicant:
Exacta-frac Energy Services, Inc., Conroe, TX (US);
Inventors:
Lloyd Murray Dallas, Streetman, TX (US);
Joze John Hrupp, Montgomery, TX (US);
Assignee:
Exacta-Frac Energy Services, Inc., Conroe, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/08 (2006.01); E21B 43/119 (2006.01); E21B 17/042 (2006.01);
U.S. Cl.
CPC ...
E21B 17/08 (2013.01); E21B 43/119 (2013.01); E21B 17/042 (2013.01);
Abstract
A mechanically perforated well casing collar has at least one machined-away area on a sidewall surface to facilitate mechanical perforation of the casing collar, and an internal guide and lock structure to guide at least one blade of a mechanical perforator into alignment with the at least one machined-away area and permit the mechanical perforator to lock in that alignment.