Completions-based well cleanout using magnetic cleanout tool
AssigneeHalliburton Energy Services, Inc.
InventorGunnar Lehrling
Life of this patent
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Abstract
A completion-based well cleanout system incorporating a magnetic cleanout tool. In an example, the magnetic cleanout tool is coupled to a completion string below a well tool to magnetically attract ferromagnetic debris ahead of the well tool as the completion string advances downhole. The magnetic cleanout tool includes an annular magnet carrier defining an array of magnet receptacles that receive a corresponding plurality of magnets. Ferromagnetic debris is thereby removed ahead of the well tool as the completion string advances downhole to keep the debris away from the well tool.
Claims20
A completion-based well cleanout system, comprising:
- a completion string installable downhole in a well;
- a well tool coupled to the completion string;
- and
- a magnetic cleanout tool coupled to the completion string below the well tool to magnetically attract ferromagnetic debris ahead of the well tool as the completion string advances downhole, the magnetic cleanout tool comprising an annular magnet carrier defining an array of magnet receptacles that receive a corresponding plurality of magnets.
A magnetic cleanout tool for a well completion string, comprising:
- a base pipe securable to a completion string and defining an internal flow path for flow through the completion string;
- an annular magnet carrier disposed about the base pipe, the annular magnet carrier defining an array of magnet receptacles;
- and
- a corresponding plurality of magnets received by the magnet receptacles and arranged to magnetically attract ferromagnetic debris ahead of a well tool.
A method, comprising:
- deploying a completion string into a wellbore carrying a well tool and a magnetic cleanout tool below the well tool;
- magnetically attracting ferromagnetic debris ahead of the well tool as the completion string advances downhole to keep the attracted ferromagnetic debris away from the well tool;
- securing the completion string downhole;
- and
- performing a tool function downhole using the well tool.
Dependencies are inferred from the claim text.