- 专利标题: Cutting tool with pre-formed hardfacing segments
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申请号: US16615974申请日: 2018-05-22
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公开(公告)号: US11591857B2公开(公告)日: 2023-02-28
- 发明人: Youhe Zhang , Huimin Song , Jan Stefan Morley
- 申请人: Smith International, Inc.
- 申请人地址: US TX Houston
- 专利权人: Smith International, Inc.
- 当前专利权人: Smith International, Inc.
- 当前专利权人地址: US TX Houston
- 国际申请: PCT/US2018/033770 WO 20180522
- 国际公布: WO2018/222436 WO 20181206
- 主分类号: E21B10/43
- IPC分类号: E21B10/43 ; E21B10/633 ; E21B10/54 ; B33Y10/00 ; B33Y80/00 ; E21B7/06
摘要:
A downhole tool includes a blade coupled to a body. The body and blade rotate about a longitudinal axis. A pre-formed faceplate is connected to the blade and partially defines a cutter pocket therein. Another portion of the cutter pocket is defined by the blade. The cutter pocket includes a sidewall and a base, with the sidewall formed by the blade and the pre-formed faceplate, and the base formed by the blade. The pre-formed faceplate includes a pre-formed hardfacing element. A downhole tool includes a blade coupled to a body. The body and blade rotate about a longitudinal axis. A pre-formed segment is connected to the blade and has a cutter pocket therein. The cutter pocket includes a sidewall and a base, and a cutting element is coupled to the pre-formed segment and within the cutter pocket. The pre-formed segment is optionally made of a different material than the blade and has increased wear and/or erosion resistance compared to the blade.