发明授权
- 专利标题: Distance holder with jet deflector
- 专利标题(中): 带喷射偏转器的距离支架
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申请号: US12531499申请日: 2008-03-20
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公开(公告)号: US08479844B2公开(公告)日: 2013-07-09
- 发明人: Jan-Jette Blangé
- 申请人: Jan-Jette Blangé
- 申请人地址: US TX Houston
- 专利权人: Shell Oil Company
- 当前专利权人: Shell Oil Company
- 当前专利权人地址: US TX Houston
- 优先权: EP07104670 20070322
- 国际申请: PCT/EP2008/053340 WO 20080320
- 国际公布: WO2008/113843 WO 20080925
- 主分类号: E21B10/60
- IPC分类号: E21B10/60 ; E21B7/18
摘要:
A distance holder for connection to, and rotation with, a drill string in an earth formation drilling device arranged to supply a jet of abrasive fluid for the purpose of providing a borehole by removing earth formation material through abrasion, comprises a chamber that is essentially rotational symmetric and which faces the earth formation material, and a jet nozzle arranged for discharging a jet of the abrasive fluid in the chamber. The chamber comprises a deflector positioned in the path of the fluid jet discharged from the jet nozzle.
公开/授权文献
- US20100084195A1 DISTANCE HOLDER WITH JET DEFLECTOR 公开/授权日:2010-04-08
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