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:
Apr. 17, 2012
Filed:
Sep. 21, 2007
Applicants:
Lawrence A. Behrmann, Houston, TX (US);
Wenbo Yang, Sugar Land, TX (US);
Inventors:
Lawrence A. Behrmann, Houston, TX (US);
Wenbo Yang, Sugar Land, TX (US);
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F42B 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A liner for a shaped charge is disclosed which comprises a plurality of portions, where at least one portion is composed of powder materials. In one embodiment, the liner comprises two portions that are composed of different powder materials, while alternative embodiments of the liner comprise three portions or four portions. When the shaped charge is used in a perforating gun, reactive powder materials may be added to the plurality of portions of the liner to optimize the penetration or the enhancement of the perforating tunnel.