Packaging system for detonating cords for x-ray examination and safe shipping

• US 20070170074A1
• Filed: 04/14/2004
• Published: 07/26/2007
• Est. Priority Date: 04/25/2003
• Status: Active Grant

• Current Assignee: DynaEnergetics Europe GmbH (DMC Global, Inc.)
• Original Assignee: DYNAenergetics GmbH & Co. KG (DMC Global, Inc.)
• Inventors: Rospek, Rolf, Riesen, Dimitri, Veehmayer, Malte
• Granted Patent: US 8,009,801 B2
• Time in Patent Office: Days
• US Class Current: 206/3
• CPC Class Codes: F42B 39/30 Containers for detonators or fuzes F42B39/14, F42B39/20 take precedence

Abstract

The invention relates to a packaging for a detonation cord (1) that is used especially for igniting shaped charge perforators in perforation guns utilized in the oil and natural gas industry. According to the invention, the detonation cord (1) is wound on one plane as a flat coil. Also disclosed is a method for examining whether a detonation cord (1) has faulty points. Said method is characterized in that the detonation cord (1) is subjected to an x-ray examination in the packaging before being delivered.

Claims

1. Packaging for a detonating cord, in particular for firing shaped charge perforators in perforating guns in the oil and natural gas industry, characterised in that the detonating cord is wound in a single plane as a flat spiral.

2. Packaging according to claim 1, characterised in that the detonating cord is wound on a base plate.

3. Packaging according to claim 1, characterised in that individual laps of the spiral are spaced from one another.

4. Packaging according to claim 3, characterised in that a space between the individual laps of the spiral is produced by a spacing cord extending in parallel, wherein the thickness of the spacing cord corresponds to the necessary space.

5. Packaging according to claim 1, characterised in that a last lap of the spiral is passed perpendicularly over the flat-wound spiral.

6. Packaging according to claim 2, characterised in that the base plate of the packaging consists of paperboard, wood or polystyrene.

7. Packaging according to claim 1, characterised in that the detonating cord is sealed in a vacuum bag, which is attached to the base plate (2).

8. A method of examining a detonating cord in packaging, characterised in that the detonating cord is subjected to X-ray examination in its packaging prior to shipping.

9. The method according to claim 8, characterised in that the detonating cord is wound in a single plane as a flat spiral.