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Downhole activated packer plug magnetic debris tool

a magnetic debris and activated packer technology, applied in the direction of fluid removal, earthwork drilling and mining, borehole/well accessories, etc., can solve the problem of unsheathed magnetic debris of the tool, and achieve the effect of preventing the premature collection of metallic debris

Inactive Publication Date: 2007-11-22
BJ SERVICES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present patent is about a downhole magnetic debris tool that can be connected to a packer isolation plug and used in a wellbore. The tool is designed to prevent damage to the wellbore and to collect debris as it passes through the packer. It includes a top adapter, internal mandrel couplings, and a guide nose that provide a means for easy removal of the tool from the packer. The tool can be connected to a conventional packer isolation plug and includes magnet tubes that can be housed within a slotted tubing. The tool can be run into the well and removed after perforation of the well casing has been completed. The technical effect of this invention is to provide a tool that can protect the wellbore and collect debris during wellbore construction."

Problems solved by technology

The removal of the assembly from the isolation packer internal seal bore may automatically cause the magnets of the tool to unsheathe such that the magnets may collect metallic debris as they pass the top of the set packer.

Method used

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  • Downhole activated packer plug magnetic debris tool
  • Downhole activated packer plug magnetic debris tool
  • Downhole activated packer plug magnetic debris tool

Examples

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Embodiment Construction

[0031]Illustrative embodiments of the invention are described below as they might be employed in the use of magnetic debris tool adapted to be connected to an isolation packer plug and the methods of running such an assembly into a wellbore. In the interest of clarity, not all features of an actual implementation are described in this specification. It will of course be appreciated that in the development of any such actual embodiment, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system related and business-related constraints, which will vary from one implementation to another. Moreover, it will be appreciated that such a development effort might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

[0032]Further aspects and advantages of the various embodiments of the invention will become apparent from ...

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PUM

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Abstract

A downhole magnetic debris tool is disclosed that may be connected to the bottom of a packer isolation plug. The downhole magnetic debris tool may include a magnetic shield assembly that shields the magnets and prevent the collection of magnetic debris as the packer isolation plug assembly is run into the well. The packer isolation plug assembly is inserted into the internal seal bore of a set packer. The assembly protects the seal bore from damage and prevents debris from moving downhole. The magnets of the downhole magnetic debris tool may be unsheathed upon removal of the packer isolation plug from the packer. The downhole magnetic debris tool may be used to collect magnetic debris that has collected on top of the packer. Additionally, the magnet shield assembly may act as a debris basket collecting downhole debris while the assembly is pulled from the hole.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]This application is a Non-provisional application claiming benefit of U.S. Provisional Application Ser. No. 60 / 801,152, entitled, “Downhole Activated Packer Plug Magnetic Debris Tool,” by Maximiliano Mondelli, George Krieg, David Hebert, and Dewayne Turner, filed May 17, 2006, hereby incorporated by reference in its entirety herein.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates generally to a downhole magnetic debris tool connected to the bottom of a packer isolation plug. The disclosed tool includes a magnetic shield assembly that shields the magnets as the packer isolation plug assembly is run into the well. The packer isolation plug is inserted into the internal seal bore of a set packer to protect the seal bore from damage and debris while a well bore is perforated. The magnets of the downhole magnetic debris tool are unsheathed upon removal of the packer isolation plug from the set packer...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E21B31/06
CPCE21B31/06
Inventor MONDELLI, MAXIMILIANOKRIEG, GEORGEHEBERT, DAVIDTURNER, DEWAYNE
Owner BJ SERVICES CO
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