Patent Number: 6,167,957

Title: Helical perforating gun

Abstract: A perforating gun for use in underground wells where the gun includes a forward guiding element and a rearward conveyancing element. These two elements are interconnected by way of a series of bow springs. In the preferred embodiment, the springs are spirally configured around the central axis of the gun. The spring function in applying pressure to the internal surface of the well shaft and in centering the gun. Additionally, the springs serve in removably carrying a series of explosive charges. The spiral configuration allows perforations to be created in a 360 degree pattern around the central axis of the gun.

Inventors: Frazier; Lynn (Oklahoma City, OK)


International Classification: E21B 43/11 (20060101); E21B 43/116 (20060101); E21B 029/00 ()

Expiration Date: 01/02/2018