Owen Oil Tools, Inc.

Jay R Shirley

Harrold D Owen, Sr

A perforating gun having an elongated mounting strip and a selected wave or non-linear, zig-zag form as seen in a plan view, with an outer surface diameter sized for convenient insertion and removal from a well. The mounting strip has a series of openings spaced in intervals for mounting capsule explosive charges in a phased relationship between 0 and 360 degrees. The cross-sectional area of the mounting strip around each opening is selected to prevent fragmentation of the carrier upon detonation of the charges. The mounting strip is preferably metallic with a selected amplitude and wave length. In each opening is an explosive capsule with a hollow cap with a nose for attachment to one of the openings. The cap has an annular, interior thread with a thread run-out of selected width. The explosive capsule has a hollow body having an open end with exterior threads and a width less than the width of the thread run-out in the cap to permit free spinning of the body in the cap after thread makeup for convenient threading and connection with the detonating cord.

Wave strip perforating system

A perforating gun having an elongated, spiral strip with an outer surface, cylindrical about a longitudinal axis, and a diameter sized for convenient entry and removal from a well. The strip has a series of threaded openings spaced in intervals for mounting capsule explosive charges in a phased relationship between 0 and 360 degrees. The cross-sectional area of the strip around each opening is selected to prevent fragmentation of the carrier upon detonation of the charges. The spiral strip is preferably metallic and forms a helical band with a pitch in a range of 12 to 24 inches. In each threaded opening is an explosive capsule with a hollow cap having at one end a threaded nose for attachment to one of the threaded openings. The cap has an annular, interior thread with a thread run-out of selected width at the other end. The capsule has a hollow body having an open end with exterior threads with a width less than the width of the thread run-out in the cap to permit free spinning of the body in the cap after thread make-up. The closed end of the body has a slot and retainer to receive a detonating cord. The hollow body of the explosive capsule may be freely spun to align the slot and retainer for convenient threading and connection with the detonating cord.

Growing community of inventors

Crowley, TX, United States of America

Jay R Shirley