发明授权
- 专利标题: Method of drilling out a reaming tool
- 专利标题(中): 钻出铰孔工具的方法
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申请号: US12624311申请日: 2009-11-23
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公开(公告)号: US07900703B2公开(公告)日: 2011-03-08
- 发明人: Lester I. Clark , John C. Thomas , Jeffrey B. Lund , Eric E. McClain
- 申请人: Lester I. Clark , John C. Thomas , Jeffrey B. Lund , Eric E. McClain
- 申请人地址: US TX Houston
- 专利权人: Baker Hughes Incorporated
- 当前专利权人: Baker Hughes Incorporated
- 当前专利权人地址: US TX Houston
- 代理机构: TraskBritt
- 主分类号: E21B29/00
- IPC分类号: E21B29/00
摘要:
A reaming tool includes a tubular body having a nose portion with a concave center. A plurality of blades defining junk slots therebetween extend axially behind the nose portion and taper outwardly from the exterior of the tubular body. Rotationally leading edges of the blades carry a plurality of cutting elements from the axially leading ends. Selected surfaces and edges of the blades bear tungsten carbide, which may comprise crushed tungsten carbide. The shell of the nose is configured to ensure drillout from the centerline thereof toward the side wall of the tubular body. A method of drilling out a reaming tool is also disclosed.
公开/授权文献
- US20100065282A1 METHOD OF DRILLING OUT A REAMING TOOL 公开/授权日:2010-03-18