发明授权
- 专利标题: Downhole draw-down pump and method
- 专利标题(中): 井下抽水泵及方法
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申请号: US12423438申请日: 2009-04-14
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公开(公告)号: US08118103B2公开(公告)日: 2012-02-21
- 发明人: Danny T. Williams
- 申请人: Danny T. Williams
- 代理机构: Jones Walker
- 主分类号: E21B43/00
- IPC分类号: E21B43/00 ; E21B43/18
摘要:
An apparatus and method for drawing down a fluid level in a well bore. The apparatus and method includes a first tubular disposed within the well bore forming a well bore annulus therein, an annular nozzle connected to an end of the first tubular, and a second tubular concentrically disposed within the first tubular forming a micro annulus. The annular nozzle includes an annular adapter and a suction tube having an internal section and an external section with an outer diameter less than the outer diameter of the first tubular. The external section of the suction tube may be positioned within a restricted section of the well bore, for example, within a restricted well bore section containing a casing liner to drawn down the fluids and solids within the well bore to produce hydrocarbons.
公开/授权文献
- US20090194294A1 Downhole Draw-Down Pump and Method 公开/授权日:2009-08-06
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