METHOD OF FABRICATION AND USE OF INTEGRATED DETONATORS

• US 20120168226A1
• Filed: 09/26/2011
• Published: 07/05/2012
• Est. Priority Date: 11/27/2001
• Status: Active Grant

• Current Assignee: Anthony F. Veneruso, James E. Brooks, Nolan C. Lerche
• Original Assignee: Anthony F. Veneruso, James E. Brooks, Nolan C. Lerche
• Inventors: Brooks, James E., Lerche, Nolan C., Veneruso, Anthony F.
• Granted Patent: US 8,230,788 B2
• Time in Patent Office: Days
• US Class Current: 175/4.55
• CPC Class Codes: E21B 43/1185 Ignition systems
• CPC Class Codes: F42B 3/121 Initiators with incorporated integrated circuit
• CPC Class Codes: F42B 3/122 Programmable electronic delay initiators
• CPC Class Codes: F42D 1/055 specially adapted for firing multiple charges with a time delay
• CPC Class Codes: H05K 1/162 incorporating printed capacitors
• CPC Class Codes: H05K 1/167 incorporating printed resistors
• CPC Class Codes: Y10T 29/49117 Conductor or circuit manufacturing

Abstract

A detonator assembly is provided for use in oilfield operations to detonate an explosive downhole including a capacitor discharge unit and initiator electrically connected together to form a single unit. Further, provided is a method of fabricating an integrated detonator. Additionally, a method of use for an integrated detonating unit is provided.

Claims

1. A method of fabricating an integrated detonator, comprising:

providing a capacitor discharge unit;

mechanically and electrically connecting a transformer to the capacitor discharge unit;

mechanically and electrically connecting an addressable chip to the transformer; and

electrically connecting a micro-switch and initiator to the capacitor discharge unit.

2. The method of claim 1, wherein providing a capacitor discharge unit comprises mechanically and electrically connecting a resistor and a capacitor.

3. The method of claim 2, further comprising providing an explosive proximate the initiator.

4. A method for use in a wellbore, comprising:

providing a capacitor, an initiator, a micro-switch, an addressable chip, a transformer, and an initiating explosive mechanically and electrically connected together to form an integrated detonating unit;

connecting the integrated detonating unit to an explosive tool;

deploying the explosive tool in the wellbore; and

firing the initiator to activate the explosive tool.

5. The method of claim 4, wherein the explosive tool is a jet cutter.

6. The method of claim 4, wherein the explosive tool is a shaped charge.

7. The method of claim 6, further comprising:

selecting the shaped charge to fire from a plurality of shaped charges deployed in the wellbore.