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. 07, 2017
Filed:
Sep. 23, 2015
Applicant:
Benteler Steel/tube Gmbh, Paderborn, DE;
Inventor:
Jozef Balun, Paderborn, DE;
Assignee:
Benteler Steel/Tube GmbH, Paderborn, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/116 (2006.01);
U.S. Cl.
CPC ...
E21B 43/116 (2013.01);
Abstract
The invention relates to a perforating gun used for hydraulic fracturing applications in a wellbore and has an outer tube having several recesses of a second kind. The recesses of a second kind are configured to absorb shock waves from a shape charge in the perforating gun to reduce the numbers of cracks that form on the perforating pun. In some embodiments, the recesses of a second kind have a variety of shapes and sizes to aid in the absorption of shock waves.