发明授权
- 专利标题： Circulation pump for circulating downhole fluids, and characterization apparatus of downhole fluids
- 专利标题（中）： 井下流体循环泵，井下流体表征装置
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申请号： US11858138申请日： 2007-09-20
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公开(公告)号： US07707878B2公开(公告)日： 2010-05-04
- 发明人: Kazumasa Kanayama , Ryuki Odashima , Shunetsu Onodera , Hitoshi Sugiyama , Hideki Kinjo
- 申请人： Kazumasa Kanayama , Ryuki Odashima , Shunetsu Onodera , Hitoshi Sugiyama , Hideki Kinjo
- 申请人地址： US TX Sugar Land
- 专利权人： Schlumberger Technology Corporation
- 当前专利权人： Schlumberger Technology Corporation
- 当前专利权人地址： US TX Sugar Land
- 代理商 Matthias Abrell; Jody DeStefanis; Jeff Griffin
- 主分类号： E21B47/08
- IPC分类号： E21B47/08
摘要：
A circulation pump for circulating downhole fluids is provided. The circulation pump includes a cylindrical pump housing, a shaft secured in the pump housing extending in a longitudinal direction thereof, an impeller rotating around the shaft in the pump housing, a cylindrical magnetic coupler rotating around the pump housing, the cylindrical magnetic coupler including a magnet, and a motor positioned outside of the pump housing and connected to the magnetic coupler to rotate the magnetic coupler around the pump housing. The impeller is provided with a magnetic piece, which is capable of being magnetically connected with the magnet of the cylindrical magnetic coupler to cause the impeller to rotate around the shaft by rotating the cylindrical magnetic coupler around the pump housing.
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