Ballistic transfer module

Patent metadata

Field	Value
Publication number	US-9890619-B2
Application number	US-201414911351-A
Country	US
Kind code	B2
Filing date	Jul 22, 2014
Priority date	Aug 26, 2013
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

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.

First claim

What is claimed is:

1. A 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.

2. The ballistic transfer module of claim 1 , wherein the body of the deformable member comprises a gap cover, the gap cover provided to form a wall of the gap.

3. The ballistic transfer module of claim 2 , wherein the gap cover is formed as an integrated component with the body.

4. The ballistic transfer module of claim 2 , wherein the gap cover is made from a different material than the body of the deformable member.

5. The ballistic transfer module 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 a percussion initiator and the inner surface of the deformable member is configured for abutment with the booster.

6. The ballistic transfer module of claim 5 , further comprising:
a collar extending from the body of the deformable member; and
a retaining member extending from the collar; and
a positioning member extending from the head of the booster,
wherein the retaining member is configured for holding the positioning member of the booster holder in at least a semi-fixed position.

7. The ballistic transfer module of claim 6 , wherein the retaining member comprises an annular lip complementarily sized and shaped for receiving the positioning member of the booster holder such that the booster abuts the deformable member.

8. The ballistic transfer module of claim 1 , wherein the deformable member deforms to initiate the percussion initiator.

9. A 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,
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, the gap is bound by walls forming a cylindrically-shaped opening, the gap having a depth of about 0.4 mm to about 0.6 mm, and a radius of about 3 mm to about 7 mm.

10. The ballistic transfer module of claim 9 , wherein the body of the deformable member comprises a gap cover, the gap cover provided to form a wall of the gap.

11. The ballistic transfer module of claim 10 , wherein the gap cover is formed as an integrated component with the body.

12. The ballistic transfer module of claim 10 , wherein the gap cover is made from a different material than the body of the deformable member.

13. The ballistic transfer module of claim 9 , 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 a percussion initiator and the inner surface of the deformable member is configured for abutment with the booster.

14. The ballistic transfer module of claim 13 , further comprising:
a collar extending from the body of the deformable member; and
a retaining member extending from the collar; and
a positioning member extending from the head of the booster,
wherein the retaining member is configured for holding the positioning member of the booster holder in at least a semi-fixed position.

15. The ballistic transfer module of claim 14 , wherein the retaining member comprises an annular lip complementarily sized and shaped for receiving the positioning member of the booster holder such that the booster abuts the deformable member.

16. The ballistic transfer module of claim 9 , wherein the deformable member deforms to initiate the percussion initiator.

Assignees

• Dynaenergetics Gmbh & Co Kg
• Dynaenergetics Gmbh & Co Kg

Inventors

• Shahinpour Arash
• Mueller Joerg
• Mulhern Eric
• Preiss Frank Haron

Classifications

• E21B43/11

  Perforators; Permeators · CPC title

• E21B43/1185 Primary

  Ignition systems · CPC title

• F42D1/043

  Connectors for detonating cords and ignition tubes, e.g. Nonel tubes (mounting of detonators in blasting cartridges F42B3/26) · CPC title

• F42C19/08

  Primers (initiators for blasting cartridges F42B3/10; ignition means for rocket engine plants F02K9/95); Detonators · CPC title

• F42B3/10

  Initiators therefor (percussion fuzes F42C7/00; percussion caps F42C19/10; electric primers F42C19/12) · CPC title