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US 4,621,396 AGranted
Manufacturing of shaped charge carriers
AssigneesJet Research Center, Inc., Halliburton Company
InventorsJerry L. Walker, Donald L. Crummett, William C. Behling
Life of this patent
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Abstract
Methods are provided for manufacturing a shaped charge carrier from a generally cylindrical thin wall tube. A plurality of flat areas are formed on the cylindrical tube, and an opening through the tube is associated with each of the flat areas for receiving a shaped charge therein.
Claims17
A method of manufacturing a tubular shaped charge carrier, comprising the steps of:
- (a) providing a generally cylindrical thin wall carrier tube;
- and
- (b) substantially simultaneously forming a plurality of flat areas on said carrier tube in a first pattern portion of a plurality of substantially identical pattern portions comprising a pattern.
A method of manufacturing a shaped charge carrier for a perforating gun, said method comprising the steps of:
- (a) providing an internal press mandrel having a plurality of equally angularly spaced flat surfaces defined on an exterior thereof, each of said flat surfaces extending along substantially an entire length of said mandrel;
- (b) placing a first portion of a generally cylindrical carrier tube substantially concentrically about said mandrel;
- (c) engaging an outer surface of said first portion of said carrier tube with an external press means and thereby substantially simultaneously forming a first plurality of flat areas on said carrier tube, said first plurality of flat areas being formed against at least some of said flat surfaces of said mandrel;
- (d) then indexing said carrier tube longitudinally relative to said mandrel by a distance substantially equal to a length of said first portion of said carrier tube;
- (e) then engaging an outer surface of a second portion of said carrier tube with said external press means and thereby substantially simultaneously forming a second plurality of flat areas on said carrier tube;
- and
- (f) forming an opening associated with each of said flat areas for receiving a shaped charge therein.
4 more elements
Dependencies are inferred from the claim text.