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:
Mar. 23, 2021
Filed:
May. 28, 2019
Applicant:
Exacta-frac Energy Services, Inc., Conroe, TX (US);
Inventors:
Joze John Hrupp, Montgomery, TX (US);
Lloyd Murray Dallas, Streetman, TX (US);
Assignee:
EXACTA-FRAC ENERGY SERVICES, INC., Conroe, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/09 (2012.01); E21B 47/06 (2012.01); E21B 43/11 (2006.01); E21B 43/25 (2006.01); E21B 33/12 (2006.01);
U.S. Cl.
CPC ...
E21B 47/09 (2013.01); E21B 43/11 (2013.01); E21B 43/25 (2013.01); E21B 47/06 (2013.01); E21B 33/12 (2013.01);
Abstract
A mechanical perforation locator has a plurality of perforation locator pins that are normally urged to a run-in condition. Fluid pumped into a work string energizes the perforation locator and urges the perforation locator pins outwardly. When the mechanical perforation locator is pulled or pushed through a cased well bore using the work string, some of the pins are forced into perforations in the casing, which impedes movement of the perforation locator and produces a characteristic spike in work string weight that is detectable at the surface.