Fullbore firing heads including attached explosive automatic release
AssigneeSchlumberger Technology Corporation
InventorsAndrew Prisbell, Mohamed Mehdi, Christopher Sarvari, Indranil Ghosh, Jose Escudero
Life of this patent
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Abstract
Embodiments of the present disclosure may provide a perforation tool and method for operating the perforation tool. The perforation tool may include one or more firing heads and one or more gun assemblies. The perforation tool may also include a release mechanism coupled to the one or more firing head and the one or more gun assemblies. The release mechanism may release the one or more gun assemblies to a bottom of a wellbore upon firing of the one or more gun assemblies and maintain the one or more firing heads on the perforation tool.
Claims18
A perforation tool, comprising:
- a firing head;
- a gun assembly;
- a release mechanism coupled to the firing head and the gun assembly, wherein the release mechanism is configured to release the gun assembly to a bottom of a wellbore upon firing of the gun assembly and maintain the firing head on the perforation tool;
- a first detonation tube coupled to the firing head;
- and
- a second detonation tube coupled to the first detonation tube and the gun assembly, wherein the second detonation tube is released to the bottom of the wellbore with the gun assembly by the release mechanism and the first detonation tube remain on the perforation tool.
A tool for performing perforation operations in a wellbore, comprising:
- a mandrel;
- a firing head coupled to an external surface of the mandrel;
- a release housing coupled to a lower end of the mandrel;
- a release mechanism housed with the release housing;
- a gun assembly coupled to the release mechanism, wherein the release mechanism is configured to release the gun assembly to a bottom of a wellbore upon firing of the gun assembly and maintain the firing head on the mandrel;
- a first detonation tube coupled to the firing head;
- and
- a second detonation tube coupled to the first detonation tube and the gun assembly, wherein the second detonation tube is released to the bottom of the wellbore with the gun assembly by the release mechanism and the first detonation tube remains on the perforation tool.
A method for performing perforation operations in a wellbore, the method comprising:
- positioning a perforation tool in the wellbore, the perforation tool comprising:
- a firing head,
- a gun assembly,
- a release mechanism coupled to the firing head and the gun assembly;
- a first detonation tube coupled to the firing head;
- and
- a second detonation tube coupled to the first detonation tube and the gun assembly, wherein the second detonation tube is released to the bottom of the wellbore with the gun assembly by the release mechanism and the first detonation tube remains on the perforation tool;
- and
- activating the firing head to fire the gun assembly, wherein the release mechanism is configured to release the gun assembly to a bottom of the wellbore upon firing of the gun assembly and maintain the firing head on the perforation tool.
Dependencies are inferred from the claim text.