Invention Grant
- Patent Title: Electromagnetic wellbore clean out tool
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Application No.: US16904395Application Date: 2020-06-17
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Publication No.: US11236585B2Publication Date: 2022-02-01
- Inventor: Shrikant Tiwari , Opeyemi Adewuya
- Applicant: Saudi Arabian Oil Company
- Applicant Address: SA Dhahran
- Assignee: Saudi Arabian Oil Company
- Current Assignee: Saudi Arabian Oil Company
- Current Assignee Address: SA Dhahran
- Agency: Bracewell LLP
- Agent Constance G. Rhebergen; Linda L. Morgan
- Main IPC: E21B27/00
- IPC: E21B27/00 ; E21B37/00 ; E21B41/00

Abstract:
Systems and methods for collecting debris in a subterranean well include a wellbore cleanout tool having a tool housing with a tool bore. The wellbore cleanout tool further includes a power source, a wire in electrical communication with the power source, and a core member located within the tool bore. The wire is wound around the core member with a first end and a second end of the wire in electrical connection with a positive terminal and a negative terminal of the power source, respectively. A plurality of magnetic bars are spaced around the core member. A sleeve member is moveable between an uphole position where the sleeve member circumscribes the plurality of magnetic bars, and a downhole position where the sleeve member is located downhole of a portion of the plurality of magnetic bars and can be a collection basket. The wellbore cleanout tool further has a permanent magnet.
Public/Granted literature
- US20210396097A1 ELECTROMAGNETIC WELLBORE CLEAN OUT TOOL Public/Granted day:2021-12-23
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