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    • 6. 发明公开
    • A clean-out tool for cleaning out a well bore and a method for cleaning out a well bore using such a clean-out tool
    • 清洁工具清洗井筒和方法通过使用清洁工具的清洗钻孔
    • EP2669464A1
    • 2013-12-04
    • EP13178757.4
    • 2013-07-31
    • Oldenamp B.V.
    • Davids, Hendrik Berend
    • E21B27/04E21B37/00E21B10/44E21B7/00
    • E21B27/04E21B7/006E21B10/44E21B37/00
    • A clean-out tool for cleaning out a well bore comprises a helical displacing member (3) which is secured against rotation about a longitudinal axis thereof. A tubular barrel (2) surrounds the helical displacing member and is rotatably journalled in a first bearing (9) and a second bearing (10). A drive mechanism (7) rotatably drives the tubular barrel. The tubular barrel comprises a hollow bit at a free end of the tubular barrel, the second bearing being provided within the hollow bit (12). The hollow bit is provided with scoop openings (13).
      In a method for cleaning out a well bore using such a clean-out the tool is completely lowered into a pre-formed well bore until the hollow bit engages debris or other material. The drive mechanism is activated to rotate the tubular barrel relative to the helical displacing member while the helical displacing member is kept stationary to convey debris or other material into the tubular barrel via the scoop openings and further into the tubular barrel. The tool is pulled out of the well bore and debris or other material is removed out of the tubular barrel.
    • 用于清洗出井眼干净出工具包括其上固定防止旋转大约其纵向轴线的螺旋位移构件(3)所有。 管状筒(2)围绕所述螺旋位移构件和在第一轴承(9)和第二轴承(10)可转动地轴颈。 驱动机构(7)可旋转地驱动管筒。 管状筒体包括在所述管状筒的自由端的中空位,被中空的位(12)内设置有第二轴承。 中空位设有勺开口(13)。 在用于清理使用寻求的清除工具井孔的方法是完全呼叫下降到预先形成的井孔直到中空位下接合碎屑或其它材料。 所述驱动机构被激活以相对于所述螺旋形,而螺旋形的位移构件保持静止经由铲开口,并进一步进入所述管筒输送碎屑或其他材料进入管状筒体位移构件的管状筒体转动。 该工具被拉出井孔和碎屑或其它材料的被移除出来的管状筒体的。