Invention Grant
- Patent Title: Shearing tool and methods of use
- Patent Title (中): 剪切工具和使用方法
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Application No.: US13136035Application Date: 2011-07-21
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Publication No.: US08376055B2Publication Date: 2013-02-19
- Inventor: James Edward Chambers, II , Gerald Robert Byrd
- Applicant: James Edward Chambers, II , Gerald Robert Byrd
- Agency: The Matthews Firm
- Main IPC: E21B41/00
- IPC: E21B41/00 ; E21B29/00 ; E21B23/00

Abstract:
A shearing tool for shearing, trimming, or reducing objects being pulled through a drill string and methods for retrieving retrievable tools with fins from the drill string, where the retrievable tools must pass through restrictions in the drill string having interior diameters less than the outer diameters of the fins. The fins, affixed to the retrievable tools, provide stability to the tools, while within the drill string, and can be made of rubber, plastic, other shearable materials, or combinations thereof. The apparatuses and methods include inserting a shearing tool with a flange into a box end of a section of drill string, where the flange keeps the shearing tool in place. The shearing tool further comprising a cutting surface for cutting materials pulled through the shearing tool.
Public/Granted literature
- US20110278020A1 Shearing tool and methods of use Public/Granted day:2011-11-17
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