Detonation interrupt device

Patent metadata

Field	Value
Publication number	US-11460281-B2
Application number	US-202017017156-A
Country	US
Kind code	B2
Filing date	Sep 10, 2020
Priority date	Sep 10, 2020
Publication date	Oct 4, 2022
Grant date	Oct 4, 2022

Abstract

Provided is a detonation interrupt device. The detonation interrupt device, in one aspect, includes a first detonation train member positioned within a housing, and a mechanical member positioned proximate the first detonation train member. In this aspect, the mechanical member is movable between a first position physically separating the first detonation train member from a second detonation train member and thereby preventing the first detonation train member from detonating the second detonation train member, and a second position not physically separating the first detonation train member from the second detonation train member and thereby allowing the first detonation train member to detonate the second detonation train member, wherein the mechanical member is configured to automatically move from the first position to the second position as the housing and the second detonation train member move linearly with respect to each other.

First claim

What is claimed is:

1. A detonation interrupt device, comprising:
a first detonation train member positioned within a housing; and
a mechanical member positioned proximate the first detonation train member, the mechanical member movable between a first position physically separating the first detonation train member from a second detonation train member and thereby preventing the first detonation train member from detonating the second detonation train member, and a second position not physically separating the first detonation train member from the second detonation train member and thereby allowing the first detonation train member to detonate the second detonation train member, wherein the mechanical member is configured to automatically move from the first position to the second position as the housing and the second detonation train member move linearly with respect to each other, wherein the first detonation train member is a detonator and the second detonation train member is a detonation cord, or the first detonation train member is a first detonation cord associated with a first gun set and the second detonation train member is a second detonation cord associated with a second gun set.

2. The detonation interrupt device as recited in claim 1 , wherein the mechanical member is configured to automatically move from the first position to the second position as the housing linearly moves toward the second detonation train member.

3. The detonation interrupt device as recited in claim 2 , wherein the mechanical member is configured to automatically move from the first position to the second position as the housing and the first detonation train member linearly move toward the second detonation train member.

4. The detonation interrupt device as recited in claim 2 , wherein the mechanical member is configured to rotate about an axis that is substantially perpendicular to a direction of movement of the housing.

5. The detonation interrupt device a recited in claim 4 , wherein an outer sloped surface of the mechanical member is configured to engage with and slide along a surface of the second detonation train member as the housing moves toward the second detonation train member to rotate the mechanical member from the first position to the second position.

6. The detonation interrupt device as recited in claim 5 , wherein the first detonation train member and the second detonation train member are configured to linearly move toward one another as the mechanical member rotates from the first position to the second position.

7. The detonation interrupt device as recited in claim 4 , wherein a force applied upon the mechanical member generated by the movement of the housing is configured to rotate the mechanical member from the first position to the second position.

8. The detonation interrupt device as recited in claim 7 , wherein the first detonation train member and the second detonation train member are configured to be linearly fixed relative to one another as the mechanical member rotates from the first position to the second position.

9. The detonation interrupt device as recited in claim 8 , wherein the force applied upon the mechanical member is configured to rotate the first detonation train member from a first position linearly misaligned with the second detonation train member to a second position linearly aligned with the second detonation train member.

10. The detonation interrupt device as recited in claim 2 , wherein the mechanical member is configured to rotate about an axis that is substantially parallel to a direction of movement of the housing.

11. The detonation interrupt devices as recited in claim 10 , wherein the mechanical member includes a rod having a pin associated therewith, the pin configured to slide within a spiral slot in a linearly moving sleeve to rotate the mechanical member about the axis that is substantially parallel to the direction of movement of the housing.

12. The detonation interrupt device as recited in claim 1 , further including an electronic disconnect member configured to electrically disarm the first detonation train member when the mechanical member is in the first position and electrically arm the first detonation train member when the mechanical member is in the second position.

13. The detonation interrupt device as recited in claim 12 , wherein the electronic disconnect member is an electric shunt that electrically decouples the first detonation train member from detonation electronics when the mechanical member is in the first position and electrically couples the first detonation train member from the detonation electronics when the mechanical member is in the second position.

14. A perforating gun assembly for use in a wellbore, the perforating gun assembly comprising:
a carrier gun body;
one or more ballistic elements supported within the carrier gun body;
a detonation cord extending through the carrier gun body to the one or more ballistic elements; and
a detonation interrupt device, the detonation interrupt device including;
a detonation train member positioned within a housing coupled to the carrier gun body; and
a mechanical member positioned proximate the detonation train member, the mechanical member movable between a first position physically separating the detonation train member from the detonation cord and thereby preventing the detonation train member from detonating the detonation cord, and a second position not physically separating the detonation train member from the detonation cord and thereby allowing the detonation train member to detonate the detonation cord, wherein the mechanical member is configured to automatically move from the first position to the second position as the housing and the second detonation train member move linearly with respect to each other.

15. The perforating gun assembly as recited in claim 14 , wherein the housing is a detonator alignment housing and the detonation train member is a detonator, and further wherein the first position physically separates the detonator from the detonation cord and thereby prevents the detonator from detonating the detonation cord, and the second position does not physically separate the detonator from the detonation cord and thereby allows the detonator to detonate the second detonation train member.

16. The perforating gun assembly as recited in claim 14 , wherein the carrier gun body is a downhole carrier gun body having a plurality of downhole ballistic elements supported therein and a downhole detonation cord extending there through, and further wherein the housing is a gun connector housing and the detonation train member is an uphole detonation cord from an uphole carrier gun body having a plurality of uphole ballistic elements supported therein, and further wherein the first position physically separates the uphole detonation cord from the downhole detonation cord and thereby prevents the uphole detonation cord from detonating the downhole detonation cord, and the second position does not physically separate the uphole detonation cord from the downhole detonation cord and thereby allows the uphole detonation cord to detonate the downhole detonation cord.

17. The perforating gun assembly as recited in claim 14 , further including an electronic disconnect member configured to electrically disarm the detonation train member when the mechanical member is in the first position and electrically arm the detonation train member when the mechanical member is in the second position.

18. A well system, comprising:
a wellbore; and
a perf

Assignees

• Halliburton Energy Services Inc

Inventors

• Leclair Nicholas Peter
• Badii Cameron Scott
• Cook Jason

Classifications

• E21B43/1185

  Ignition systems · CPC title

• F42C15/34 Primary

  wherein the safety or arming action is effected by a blocking-member in the pyrotechnic or explosive train between primer and main charge (F42C15/18, F42C15/40 take precedence) · CPC title

• F42D5/00

  Safety arrangements · CPC title