IP Library Granted Patent US 9,988,885
Granted Patent B1
US 9,988,885 · App. 15/856,227 · Granted Jun 5, 2018

Method of initiating a percussion initiator

Inventors: Arash Shahinpour (Troisdorf, DE); Joerg Mueller (Bonn-Lengsdorf, DE); Eric Mulhern (Edmonton, CA); Frank Haron Preiss (Bonn, DE)
Assignee: DynaEnergetics GmbH & Co. KG
E21B43/1185E21B43/11F42D1/043
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Quick Facts
Patent No.
US 9,988,885
App. No.
15/856,227
Granted
Jun 5, 2018
Kind
B1
Abstract

According to an aspect a deformable member is provided, wherein the deformable member is configured for use in a ballistic transfer module. The ballistic transfer module includes the deformable member, a booster holder, a booster and a detonating cord. A method of initiating one or more percussion initiators of a perforating gun assembly using the ballistic transfer module and deforming the deformable member is also provided.

Claims (30)

1. A method of initiating one or more percussion initiators of a perforating gun assembly, comprising:

assembling a ballistic transfer module as at least one portion of the perforating gun assembly, the ballistic transfer module comprising

a deformable member comprising a body, wherein a gap is positioned within the body,

a booster holder comprising a housing member and a head extending from one end of the housing member,

a booster positioned within a bore of the housing member of the booster holder, and

a detonating cord extending from the booster, wherein the deformable member is configured for assembly in contact with at least a portion of the head of the booster holder;

initiating the detonating cord, which in turn activates the booster causing the booster to explode;

deforming the deformable member through the explosion of the booster; and

igniting a percussion initiator through the deforming of the deformable member to fire the perforating gun assembly.

2. The method of claim 1 , wherein the igniting of the percussion initiator through the deforming of the deformable member fires a time delay, which in turn fires the perforating gun assembly.

3. The method of claim 1 , further comprising:

forming a gap cover in the body of the deformable member, the gap cover forming a wall of the gap.

4. The method of claim 3 , further comprising:

configuring the gap cover as a removable portion and positioning the gap cover in abutting contact with the booster such that when the booster explodes, the gap cover deforms into the gap, causing deforming of the deformable member.

5. The method of claim 1 , further comprising:

forming a gap cover as an integrated component of the body of the deformable member, the gap cover forming a wall of the gap positioned within the body of the deformable member; and

positioning the gap cover in abutting contact with the booster such that when the booster explodes, the gap cover deforming into the gap, causing deforming of the deformable member.

6. The method of claim 5 , further comprising:

forming the gap cover of a material that is different than a material forming the body of the deformable member.

7. The method of claim 1 , further comprising:

configuring the deformable member with a collar extending from the body and a retaining member extending from the collar;

configuring the head of the booster holder with a positioning member extending from the head; and

holding the positioning member extending from the head of the booster holder using the retaining member configured as an annular lip complementarily sized and shaped for holding the positioning member in at least a semi-fixed position such that the booster abuts the deformable member.

8. The method of claim 1 , wherein the deformable member comprises an inner surface and an outer surface, and wherein the outer surface of the deformable member is configured for abutment with the one or more percussion initiators and the inner surface of the deformable member is configured for abutment with the booster.

9. The method of claim 1 , wherein

the gap is centrally positioned in the body of the deformable member at a depth of about 0.4 mm to about 0.6 mm below an inner surface of the deformable member, and

the gap is bound by walls forming a cylindrically-shaped opening.

10. The method of claim 1 , wherein

the gap has a depth of about 0.4 mm to about 0.6 mm, and

the gap has a radius of about 3 mm to about 7 mm.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 17, 2020
From: DYNAENERGETICS GMBH & CO. KG
To: DYNAENERGETICS EUROPE GMBH
Reel/Frame 051945/0688 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 28, 2017
From: SHAHINPOUR, ARASH; MUELLER, JOERG; PREISS, FRANK HARON
To: DYNAENERGETICS GMBH & CO. KG
Reel/Frame 044498/0331 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 28, 2017
From: MULHERN, ERIC
To: DYNAENERGETICS CANADA INC.
Reel/Frame 044498/0407 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 28, 2017
From: DYNAENERGETICS CANADA INC.
To: DYNAENERGETICS GMBH & CO. KG
Reel/Frame 044498/0420 →
Priority Claims (1)
DE 10 2013 109 228 · Aug 26, 2013 · national
Continuity (1)
Division 14911351