초록 ▼

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 th

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.

대표청구항 ▼

[ What is claimed as being new and desired to be protected by Letters Patent of the United States is as follows:] [6.] A perforating gun comprising:a guiding element;a rearward conveyancing element;a number of bow springs extending in between and interconnecting the guiding element and conveyancing

[ What is claimed as being new and desired to be protected by Letters Patent of the United States is as follows:] [6.] A perforating gun comprising:a guiding element;a rearward conveyancing element;a number of bow springs extending in between and interconnecting the guiding element and conveyancing element;each of the bow spring being twisted into a helix and adapted to have a number of explosive caps secured along its length.