Direct connect sub for a perforating gun

Patent metadata

Field	Value
Publication number	US-2016333675-A1
Application number	US-201615148791-A
Country	US
Kind code	A1
Filing date	May 6, 2016
Priority date	May 15, 2015
Publication date	Nov 17, 2016
Grant date	—

Abstract

A perforating gun assembly includes a perforating gun body, a casing collar locator, and a direct connect sub coupled to the CCL and the perforating gun body. In an embodiment, the direct connect sub includes a single body including a central axis, a first end, and a second end. The first end is engaged with the CCL, and the second end is engaged with the perforating gun body.

First claim

What is claimed is:

1 . A perforating gun assembly, comprising:
a perforating gun body; a casing collar locator (CCL); and a direct connect sub coupled to the CCL and the perforating gun body, the direct connect sub comprising:
a single body including a central axis, a first end, and a second end;
wherein the first end is engaged with the CCL; and
wherein the second end is engaged with the perforating gun body.

2 . The perforating gun assembly of claim 1 , wherein the direct connect sub further comprises:
a first set of threads disposed proximate the first end that are threadably engaged with corresponding threads of the CCL; and a second set of threads disposed proximate the second end that are threadably engaged with corresponding threads of the perforating gun body; wherein the first set of threads and the second set of threads are both external threads.

3 . The perforating gun assembly of claim 1 , wherein the body of the direct connect sub further comprises a port extending from an outer surface of the body to an internal passage extending within the body.

4 . The perforating gun assembly of claim 1 , further comprising an electrical contact assembly configured to electrically couple a component within the CCL to a conductor extending from the perforating gun body, wherein the contact assembly is disposed within the body of the direct connect sub.

5 . The perforating gun assembly of claim 4 , wherein the electrical contact assembly comprises:
a housing including an internal bore; a contact pin is partially disposed within the bore; and a conductor electrically coupled to the contact pin; wherein the contact pin is configured to translate within the bore and extends into the CCL; and wherein the conductor of the electrical contact assembly is configured to be electrically connected to the conductor extending from the perforating gun body.

6 . The perforating gun assembly of claim 5 , wherein the electrical contact assembly further comprises:
a plug disposed within the bore of the housing; wherein the plug is electrically coupled between the contact pin and the conductor of the electrical contact assembly.

7 . The perforating gun assembly of claim 6 , wherein the housing is disposed within and sealingly engages a first axial passage within the body of the direct connect sub; and
wherein the plug sealingly engages the bore of the housing.

8 . The perforating gun assembly of claim 7 , wherein the plug comprises:
an internal portion that is electrically conductive; and an external portion at least partially covering the internal portion, wherein the external portion is an electrical insulator.

9 . The perforating gun assembly of claim 8 , wherein the electrical contact assembly further comprises a biasing member disposed within the bore of the housing;
wherein the biasing member extends between the contact pin and the plug and electrically couples the contact pin to the plug.

10 . The perforating gun assembly of claim 9 , wherein the conductor of the electrical contact assembly extends into a second axial passage within the body;
wherein the second axial passage extends axially from the first axial passage; wherein the body of the direct connect sub further comprises a port extending radially from an outer surface of the body to the second axial passage; and wherein the direct connect sub further comprises a port plug configured to be sealingly engaged within the port.

11 . A direct connect sub for coupling a casing collar locator (CCL) to a perforating gun body, the direct connect sub comprising:
a single body including a central axis, a first end, and a second end; a first set of threads disposed proximate the first end that are configured to threadably engage with the CCL; a second set of threads disposed proximate the second end that are configured to threadably engage with the perforating gun body.

12 . The direct connect sub of claim 11 , wherein the first set of threads and the second set of threads are both external threads.

13 . The direct connect sub of claim 11 , wherein the body further comprises a port extending radially from an outer surface of the body to an internal passage extending within the body.

14 . The direct connect sub of claim 13 , further comprising an electrical contact assembly disposed within the body of the direct connect sub, wherein the electrical contact assembly comprises:
a housing including an internal bore; a contact pin is partially disposed within the bore; and a conductor electrically coupled to the contact pin; wherein the contact pin is configured to translate within the bore and extend axially past the first end of the body.

15 . The direct connect sub of claim 14 , wherein the electrical contact assembly further comprises:
a plug disposed within the bore of the housing; wherein the plug is electrically coupled between the contact pin and the conductor.

16 . The direct connect sub of claim 15 , wherein the housing is disposed within and sealingly engages a first axial passage within the body of the direct connect sub; and
wherein the plug sealingly engages the bore of the housing.

17 . The direct connect sub of claim 16 , wherein the plug comprises:
an internal portion that is electrically conductive; and an external portion at least partially covering the internal portion, wherein the external portion is an electrical insulator.

18 . The direct connect sub of claim 16 , wherein the electrical contact assembly further comprises a biasing member disposed within the bore of the housing;
wherein the biasing member extends between the contact pin and the plug and electrically couples the contact pin to the plug.

19 . The direct connect sub of claim 17 , wherein the conductor of the electrical contact assembly extends into a second axial passage within the body;
wherein the second axial passage extends axially from the first axial passage; wherein the body of the direct connect sub further comprises a port extending radially from an outer surface of the housing to the second axial passage; and wherein the direct connect sub further comprises a port plug configured to be sealingly engaged within the port.

20 . A direct connect sub for coupling a perforating gun body to a component, the direct connect sub comprising:
a single body including a first end and a second end; a first set of threads disposed proximate the first end that are configured to threadably engage with the component; a second set of threads disposed proximate the second end that are configured to threadably engage with the perforating gun body; an electrical contact assembly disposed within the body of the direct connect sub, wherein the electrical contact assembly comprises:
a housing including an internal bore, wherein the housing is disposed within and sealingly engages a first axial passage within body;
a contact pin that is partially disposed within the bore and configured to translate within the bore;
a plug disposed within and sealingly engaging the bore of the housing;
a biasing member disposed within the bore of the housing, wherein the biasing member extends between the contact pin and the plug and electrically couples the contact pin to the plug; and
a conductor electrically coupled to the plug, wherein the conductor extends into a second axial passage within the body that extends axially from the first axial passage; and
a port extending from an outer surface of the housing to t

Assignees

• G&H Diversified Mfg Lp

Inventors

• Wells Joe Noel
• Knight Benjamin Vascal

Classifications

• E21B43/116 Primary

  Gun or shaped-charge perforators · CPC title

• E21B47/092

  by detecting magnetic anomalies · CPC title

• E21B43/119 Primary

  Details, e.g. for locating perforating place or direction · CPC title