Select fire stackable gun system

摘要

A system and method of perforating by stacking a perforating string within a wellbore, then deploying the perforating string to a designated depth for detonating shaped charges in the perforating string. The string can be formed by anchoring a single perforating gun in the wellbore, then landing subsequent guns on one another atop the anchored gun. Wet connects on the ends of the perforating guns enable mechanical engagement of each adjacent gun as well as signal communication through the connections.

主权项

1. A method of forming a string of perforating guns comprising:
(a) providing a perforating gun having a body, a connector on an upper end and an anchor mounted to the body; (b) inserting the perforating gun into a wellbore that is surrounded by a formation; (c) anchoring the perforating gun to a wall of the wellbore by deploying the anchor radially outward and against an inner surface of the wellbore, and which defines a lowermost perforating gun; (d) inserting upper perforating gun into the wellbore; and (e) landing the upper perforating gun onto the lowermost perforating gun thereby automatically fixedly coupling the upper perforating gun to the lowermost perforating gun thereby forming a string of perforating guns, wherein the step of inserting each perforating gun into the wellbore comprises attaching a wireline to an upper end of each perforating gun and inserting each perforating gun by lowering the wireline into the wellbore.