发明授权
US08479844B2 Distance holder with jet deflector 有权
带喷射偏转器的距离支架

  • 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
  • 申请号: US12531499
    申请日: 2008-03-20
  • 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
Distance holder with jet deflector
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.
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