Granted Patent B2

US 12,215,576 · App. 17/223,899 · Granted Feb 4, 2025

Inventors: Frank Haron Preiss (Bonn, DE); Liam McNelis (Bonn, DE); Eric Mulhern (Edmonton, CA); Thilo Scharf (Letterkenny, IE); David C. Parks (Calgary, CA); Christian Eitschberger (Munich, DE)

Assignee: DynaEnergetics Europe GmbH

E21B43/1185E21B43/11855E21B43/119F42C19/06F42D1/02F42D1/04F42D1/043

Abstract

Claims (39)

1. A perforation gun, comprising:

an outer gun carrier; and

a perforation gun assembly positioned within the outer gun carrier and comprising a single shaped charge holder, a top connector, and a bottom connector, wherein

the single shaped charge holder comprises a first base and a second base spaced apart from the first base,

the first base of the single shaped charge holder comprises a pin outwardly extending from the first base of the single shaped charge holder,

the second base of the single shaped charge holder comprises a socket extending into the second base of the single shaped charge holder,

the top connector comprises a socket extending into a second end of the top connector and complementarily dimensioned for coupling with the pin of the first base of the single shaped charge holder, and

the bottom connector comprises a pin outwardly extending from a first base of the bottom connector and complementarily dimensioned for coupling with the socket of the second base of the single shaped charge holder.

2. The perforation gun of claim 1 , wherein:

the single shaped charge holder comprises a charge receiving structure dimensioned for receiving a shaped charge, and at least one projection extending from the charge receiving structure, wherein the at least one projection is dimensioned for centralizing the shaped charge within the outer gun carrier, when the shaped charge is received in the charge receiving structure.

3. The perforation gun of claim 1 , further comprising:

a detonation cord connected to the top connector and the single shaped charge holder, wherein the at least one projection of the single shaped charge holder includes a first projection and a second projection, and the detonation cord is captured and connected to the single shaped charge holder by the first projection and the second projection.

4. The perforation gun of claim 3 , further comprising:

a detonator provided in the top connector,

wherein the top connector is configured to provide an energetic coupling between the detonation cord and the detonator.

5. The perforation gun of claim 1 , wherein:

the top connector comprises a directional locking fin dimensioned for contacting an inner surface of the outer gun carrier.

6. The perforation gun of claim 5 , wherein:

a position of the top connector along the length of the outer gun carrier is fixed by the directional locking fin within the outer gun carrier.

7. The perforation gun of claim 1 , further comprising:

a retainment mechanism positioned adjacent to the bottom connector within the outer gun carrier, wherein

a wing extending radially away from a body of the bottom connector and dimensioned to axially lock the bottom connector against the retainment mechanism.

8. A perforation gun, comprising:

an outer gun carrier;

a tandem seal adapter positioned at least in part within the outer gun carrier;

a perforation gun assembly positioned within the outer gun carrier and comprising a single shaped charge holder, a top connector, and a bottom connector, wherein

the single shaped charge holder comprises a first base and a second base spaced apart from the first base,

the first base of the single shaped charge holder comprises a pin outwardly extending from the first base of the single shaped charge holder;

the second base of the single shaped charge holder comprises a socket extending into the second base of the single shaped charge holder;

the top connector comprises a socket extending into a second end of the top connector and complementarily dimensioned for coupling with the pin of the first base of the single shaped charge holder; and

the bottom connector comprises a pin outwardly extending from a first base of the bottom connector and complementarily dimensioned for coupling with the socket of the second base of the single shaped charge holder.

9. The perforation gun of claim 8 , wherein:

the tandem seal adapter is positioned adjacent to the bottom connector, and at least a portion of the bottom connector is positioned within a recess formed in the tandem seal adapter, adjacent the bottom connector.

10. The perforation gun of claim 9 , further comprising:

a bulkhead assembly sealingly received within a bore that extends through the tandem seal adapter, wherein the bottom connector includes an electrical conductor configured for electrically connecting to an electrical connection through the bulkhead assembly.

11. The perforation gun of claim 10 , further comprising:

a detonator positioned in the top connector, wherein the detonator includes a bulkhead connector element and the top connector and the detonator are positioned for the bulkhead connector element to electrically connect to an electrical connection through a bulkhead assembly, from an adjacent gun.

12. The perforation gun of claim 11 , further comprising:

a detonation cord connected to the single shaped charge holder and the top connector, wherein the top connector is configured to provide an energetic coupling between the detonation cord and the detonator.

Assignments (8)

Priority Claims (1)

Continuity (8)

References Cited (400)

Cited By (1)

US 12,631,093