Self-Arming Perforating System and Method
AssigneeHunting Titan, Inc.
InventorsAdam Dyess, Julio Cesar Veliz
Life of this patent
Estimating the term…
Abstract
A method and apparatus for a perforating gun having a movable detonator holder in a first perforating gun that is positioned inside the carrier such that the detonator is not directly positioned end to end nor side by side with the detonating cord in the loading tube. When a second perforating gun is screwed onto the first perforating gun, the entire charge tube assembly moves, closing the detonator holder further into the carrier such that the detonating holder closes in on the detonating cord until the detonator is adjacent to the detonating cord to connect the detonator to detonating cord ballistic train.
Claims20
A perforating gun comprising:
- an outer carrier;
- a charge tube assembly that having a loading tube containing a plurality of shaped charges and a detonating cord coupled to said shaped charges;
- a loading tube end fitting coupled to a first end of the loading tube containing a detonator housed in a hinged detonator holder configured to move the detonator between a ballistically unarmed position to a ballistically armed position.
A method for perforating a wellbore comprising:
- coupling a loading tube, a plurality of shaped charges, and a detonating cord into a first perforating gun assembly;
- inserting a detonator into a movable detonator holder in a loading tube end fitting;
- inserting the loading tube end fitting into a first perforating gun;
- and
- moving the detonator between a ballistically unarmed position to a ballistically armed position.
The method for perforating a wellbore from 17, wherein the second perforating gun is screwed onto the first perforating gun, the entire charge tube assembly moves, closing the detonator holder further into the carrier such that the detonating holder closes in on the detonating cord until the detonator is adjacent to the detonating cord to connect the detonator to detonating cord ballistic train.
Dependencies are inferred from the claim text.