Donald Wayne Camp

US Patent:

43122736, Jan 26, 1982

Filed:

Apr 7, 1980

Appl. No.:

6/138140

Inventors:

Donald L. Camp - Mansfield TX

Assignee:

Shaped Charge Specialist, Inc. - Mansfield TX

International Classification:

E21B 700
E21B 43117
F42B 308

US Classification:

102310

Abstract:

A mounting system for shaped charge explosive perforation of an oil well casing (24) includes an elongated support panel (28) having spaced apertures (44, 46) receiving cylindrical-conical shaped charges (26) retained by spring wire clips (30). The shaped charge (26) has an open mouth cylindrical portion (36) with a shoulder (52) at a reduction to the diameter of the apertures (44, 46), and a circumferential groove (54) spaced from the shoulder (52) a distance about equal to the thickness of the panel (28). The spring wire clip (30) has a semicircular portion (78) mating in the circumferential groove (54) for about 180. degree. , and has oppositely directed radical extensions (70, 72) terminating in hooks (74, 76) which extend above the panel (28) to receive and position primer cord (32) seated in a transverse groove (62) in the apex (64) of the conical portion (34) of the shaped charge (26).