发明名称 AIR FILTRATION FOR ROCK DRILLING
摘要 A downhole tool to separate liquid from a drilling fluid includes a multi-vein cyclonic separator disposed within a housing, the cyclonic separator including at least two veins extending in a spiral along the length of the cyclonic separator, holes in the housing positioned adjacent to edges of veins of the cyclonic separator to allow liquid accelerated from the drilling fluid to exit the housing, and wherein the cyclonic separator is configured to provide high centrifugal forces to the drilling fluid downhole.
申请公布号 US2009173545(A1) 申请公布日期 2009.07.09
申请号 US20090351163 申请日期 2009.01.09
申请人 SANDVIK MINING AND CONSTRUCTION 发明人 SHOTTON VINCENT WAYNE
分类号 E21B7/00;E21B41/00 主分类号 E21B7/00
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