Perforating gun module with monolithic shaped charge positioning device
A perforating gun module may include a gun housing including a housing chamber and a shaped charge positioning device provided in the housing chamber. The shaped charge positioning device may include a shaped charge holder and a detonator holder provided axially adjacent to the shaped charge holder. The shaped charge positioning device may be a singular and monolithic piece of non-metal material. A perforating gun module string may include a first perforating gun module directly coupled to a second perforating gun module. Each perforating gun module may include a gun housing with a housing chamber, a shaped charge holder provided in the housing chamber, and a detonator holder provided axially adjacent to the shaped charge receptacle. The shaped charge holder and the detonator holder may comprise a singular and monolithic piece of non-metal material.
1. A shaped charge positioning device, comprising:
a detonator holder, wherein the detonator holder comprises a cavity configured to receive an electrically conductive detonator body;
a shaped charge holder provided axially adjacent to the detonator holder, wherein the shaped charge holder comprises an opening formed in an end of the shaped charge holder, and a shaped charge receptacle provided between the detonator holder and the opening, wherein the shaped charge receptacle comprises a single shaped charge receptacle;
a channel extending between the detonator holder cavity and the shaped charge receptacle and configured to provide ballistic communication between the detonator and the shaped charge receptacle; and
a shaped metal contact extending from inside the detonator cavity and around the shaped charge receptacle, wherein the shaped metal contact is configured to provide electrical communication between the electrically conductive detonator body and an electrical contact spaced apart from the electrically conductive detonator body,
wherein the shaped charge holder further comprises:
a frame defining the shaped charge receptacle, and
an arm extending between sides of the frame and defining a base for receiving the shaped charge; and
wherein the channel is formed within the arm of the shaped charge holder.
2. The shaped charge positioning device of claim 1 , wherein:
the electrical contact further comprises a spring-loaded bulkhead pin provided in the opening; and
the shaped metal contact is configured to provide electrical communication between the electrically conductive detonator body and the spring-loaded bulkhead pin.
3. The shaped charge positioning device of claim 1 , wherein:
the detonator holder and the shaped charge holder are formed from a non-metal material.
4. The shaped charge positioning device of claim 3 , wherein:
the detonator holder and the shaped charge holder are formed from a singular and monolithic piece of non-metal material.
5. The shaped charge positioning device of claim 1 , wherein:
the shaped charge receptacle and the detonator holder cavity are radially non-overlapping.
6. The shaped charge positioning device of claim 1 , wherein:
the shaped metal contact comprises a spring.
7. A shaped charge positioning device, comprising:
a detonator holder, wherein the detonator holder comprises a cavity configured to receive a detonator comprising an electrically conductive detonator body;
a shaped charge holder provided axially adjacent to the detonator holder, wherein the shaped charge holder comprises an opening formed in an end of the shaped charge holder, and a shaped charge receptacle provided between the detonator holder and the opening, wherein the shaped charge receptacle comprises a single shaped charge receptacle;
a channel extending between the detonator holder cavity and the shaped charge receptacle and configured to provide ballistic communication between the detonator and the shaped charge receptacle;
a spring-loaded bulkhead pin provided in the opening in the end of the shaped charge holder; and
a shaped metal contact extending from at least partially inside the detonator cavity and around the shaped charge receptacle, wherein the shaped metal contact is configured to provide electrical communication between the detonator and the spring-loaded bulkhead pin,
wherein the shaped charge holder further comprises:
a frame defining the shaped charge receptacle; and
an arm extending between sides of the frame and defining a base for receiving the shaped charge,
wherein the channel is formed within the arm of the shaped charge holder.
8. The shaped charge positioning device of claim 7 , wherein:
the detonator holder and the shaped charge holder are formed from a non-metal material.
9. The shaped charge positioning device of claim 7 , wherein:
The detonator holder and the shaped charge holder are formed from a singular and monolithic piece of non-metal material.
10. The shaped charge positioning device of claim 7 , wherein:
the shaped charge receptacle and the detonator holder cavity are radially non-overlapping.
11. The shaped charge positioning device of claim 7 , wherein:
the shaped metal contact comprises a spring; and
the spring is configured to provide electrical communication between a detonator body provided in the detonator holder and the spring-loaded bulkhead pin provided in the opening.
12. A perforating gun module, comprising:
a gun housing including a housing chamber defined by a first inner circumferential surface of the gun housing;
a shaped charge positioning device, comprising:
a detonator holder, wherein the detonator holder comprises a cavity configured to receive a detonator comprising an electrically conductive detonator body,
a shaped charge holder provided axially adjacent to the detonator holder, wherein the shaped charge holder comprises an opening formed in an end of the shaped charge holder, and
a shaped charge receptacle provided between the detonator holder and the opening, wherein the shaped charge receptacle comprises a single shaped charge receptacle,
a channel extending between the detonator holder cavity and the shaped charge receptacle and configured to provide ballistic communication between the detonator and the shaped charge receptacle, and
a shaped metal contact extending from at least partially inside the detonator cavity and around the shaped charge receptacle, wherein the shaped metal contact is configured to provide electrical communication between the detonator and a spring-loaded bulkhead pin provided in the opening,
wherein the shaped charge holder further comprises:
a frame defining the shaped charge receptacle; and
an arm extending between sides of the frame and defining a base for receiving the shaped charge,
wherein the channel is formed within the arm of the shaped charge holder.
13. The perforating gun module of claim 12 , wherein the gun housing further comprises:
a bore provided axially adjacent to the housing chamber, the bore defined by a second inner circumferential surface of the gun housing that is axially displaced from the first inner circumferential surface and radially adjacent to the bore;
a housing recess provided axially adjacent the bore, the housing recess defined by a third inner circumferential surface of the gun housing that is axially displaced from each of the first inner circumferential surface and the second inner circumferential surface and radially adjacent to the housing recess; and
a bulkhead assembly positioned in the bore such that the bulkhead assembly is sealingly engaged with the second inner circumferential surface of the gun housing,
wherein the spring-loaded bulkhead pin extends from the bulkhead assembly into the opening.
14. The perforating gun module of claim 12 , further comprising:
a first threaded portion provided on the first inner circumferential surface of the housing chamber adjacent the first end; and
a second threaded portion provided on an outer circumferential surface of the gun housing adjacent the second end.
15. The perforating gun module of claim 12 , further comprising:
an electrically conductive detonator body provided in the detonator holder,
wherein the shaped metal contact is configured to provide electrical communication between the detonator and the spring-loaded bulkhead pin.
16. The perforating gun module of claim 12 , wherein:
the shaped charge receptacle and the detonator holder cavity are radially non-overlapping.