US 11,913,766 B2
Shaped charge integrated canister
Andrew Prisbell, Sugar Land, TX (US); Atsushi Nakano, Sugar Land, TX (US); and Terry Butler, Alvin, TX (US)
Assigned to Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on Mar. 10, 2022, as Appl. No. 17/654,336.
Claims priority of provisional application 63/160,426, filed on Mar. 12, 2021.
Prior Publication US 2022/0290960 A1, Sep. 15, 2022
Int. Cl. F42B 1/028 (2006.01); E21B 43/117 (2006.01); F42D 1/02 (2006.01); F42D 1/04 (2006.01); E21B 43/119 (2006.01)
CPC F42D 1/02 (2013.01) [E21B 43/117 (2013.01); E21B 43/119 (2013.01); F42B 1/028 (2013.01); F42D 1/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A charge canister for a perforation tool, the charge canister comprising:
a cylindrical body having an expansion portion extending along a radius of the cylindrical body, the expansion portion having a randomized textured interior surface, a narrow portion at a first end of the expansion portion, and a wide portion at a second end of the expansion portion opposite from the first end; and
an explosive material disposed within the expansion portion in direct contact with the randomized textured interior surface of the expansion portion.
 
10. A perforation tool, comprising:
a tubular housing;
an initiation module disposed within the tubular housing, the initiation module comprising a detonator housing protruding from an end of the initiation module for housing a detonator; and
a charge canister disposed within the tubular housing, the charge canister comprising:
a cylindrical body having an expansion portion extending along a radius of the cylindrical body, the expansion portion having a randomized textured interior surface, a narrow portion at a first end of the expansion portion and a wide portion at a second end of the expansion portion opposite from the first end; and
an explosive material disposed within the expansion portion in direct contact with the randomized textured interior surface of the expansion portion.
 
19. A method of making a charge canister for a perforation tool, the method comprising:
applying a randomized surface preparation to an interior surface of an expansion portion of a cylindrical body, wherein the randomized surface preparation comprises texturing the interior surface to provide a randomized textured interior surface prior to disposing an explosive material into the expansion portion;
disposing the explosive material into the expansion portion of the cylindrical body, the cylindrical body having the expansion portion extending along a radius of the cylindrical body, the expansion portion having a narrow portion at a first end of the expansion portion and a wide portion at a second end of the expansion portion opposite from the first end, the explosive material in direct contact with the randomized textured interior surface of the expansion portion;
disposing a liner against the explosive material within the expansion portion; and
pressing the liner against the explosive material to set the explosive material and the liner into the expansion portion.