发明名称 Drilling mud filtration device
摘要 A filter system for filtering drill bit cuttings, shavings, and other abrasive articles from a drilling mud that is passed through an oil or gas well drilling system is provided that includes an overhead drilling system, a drill string connected to the overhead drilling system, and a mud filter for filtering the drilling mud, wherein the mud filter is disposed within a drilling mud fluid passageway that extends from the entry point of the drilling mud into the overhead drilling system and the entry point of the drilling mud into the drill string.
申请公布号 US2004079551(A1) 申请公布日期 2004.04.29
申请号 US20030453370 申请日期 2003.06.03
申请人 HERST NEIL 发明人 HERST NEIL
分类号 E21B21/06;(IPC1-7):E21B43/34 主分类号 E21B21/06
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