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.

Date of Patent:
Feb. 22, 2022

Filed:

Mar. 29, 2021
Applicant:

Dynaenergetics Europe Gmbh, Troisdorf, DE;

Inventors:

Joern Olaf Loehken, Troisdorf, DE;

Liam McNelis, Bonn, DE;

Bernd Fricke, Hannover, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/117 (2006.01); F42B 1/032 (2006.01); B22F 7/00 (2006.01); C23C 24/06 (2006.01); F42B 1/028 (2006.01); C23C 24/00 (2006.01);
U.S. Cl.
CPC ...
E21B 43/117 (2013.01); B22F 7/008 (2013.01); C23C 24/06 (2013.01); F42B 1/028 (2013.01); F42B 1/032 (2013.01); B22F 2301/20 (2013.01); B22F 2302/10 (2013.01); B22F 2302/20 (2013.01); C23C 24/00 (2013.01);
Abstract

A shaped charge liner may include an apex portion and a skirt portion extending from the apex portion. The skirt portion may include a body connected to the apex portion, a perimeter spaced apart from the apex portion, and a carbide layer extending between and spaced apart from the perimeter and the apex portion. A shaped charge for creating a perforation hole in a wellbore casing may include a shaped charge liner having at least one material having hardness that is greater than a corresponding hardness of the wellbore casing. The at least one material is configured to bond to at least one of an outer surface and an inner surface of the perforation hole upon detonation of the shaped charge and penetration of the casing by a perforation jet.


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