发明名称 STABILIZING DRILL BITS
摘要 There is provided a non-rotating, self-centering stabilizer (10). The stabilizer (10) includes a cylindrical sleeve (12) disposed about a rotating mandrel (34). A plurality of wear-resistant pads (18A, 18B and 18C) partially extend from a similar number of longitudinal channels (14A, 14B and 14C) to form a stabilizing relationship with the wall of a hole being drilled.
申请公布号 AU5968680(A) 申请公布日期 1981.01.22
申请号 AU19800059686 申请日期 1980.06.26
申请人 INCO LTD. 发明人 J.R. ENGLAND
分类号 E21B17/10 主分类号 E21B17/10
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