发明名称 Drilling stabilizer
摘要 A stabilizer used to centralize drill pipe in the drilling of wells, such as oil and gas wells, having a replaceable member with a contoured outer surface and specifically designed flow paths.
申请公布号 US2008000698(A1) 申请公布日期 2008.01.03
申请号 US20060476454 申请日期 2006.06.28
申请人 COBB ARCHIE A 发明人 COBB ARCHIE A.
分类号 E21B17/10 主分类号 E21B17/10
代理机构 代理人
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