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:
Aug. 09, 2005
Filed:
Oct. 14, 2003
Ernest L. Baker, Wantage, NJ (US);
David C. Daniel, Missouri City, TX (US);
David S. Wesson, Ft. Worth, TX (US);
John L. Burba, Iii, Boulder City, NV (US);
Arthur S. Daniels, Rockaway, NJ (US);
Robert E. Davis, Joshua, TX (US);
Ernest L. Baker, Wantage, NJ (US);
David C. Daniel, Missouri City, TX (US);
David S. Wesson, Ft. Worth, TX (US);
John L. Burba, III, Boulder City, NV (US);
Arthur S. Daniels, Rockaway, NJ (US);
Robert E. Davis, Joshua, TX (US);
Molycorp Inc., Mountain Pass, CA (US);
Abstract
A non-linear shaped charge perforator for use in perforating an oil and gas formation into which a wellbore has been drilled comprises a monolithic, axisymmetric metal case in which is disposed a main explosive charge between the front of the case, which is closed with a concave metal liner, and the closed back end of the case. The main explosive charge contains multiple initiation points, preferably two initiation points located about 180° apart on the outside surface of the charge, so that when the perforator is detonated the main charge is initiated such that the metal liner is collapsed into a non-circular jet, preferably a fan-shaped jet, that pierces the casing of the wellbore and forms non-circular perforations, preferably slot-shaped perforations, in the surrounding formation.