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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
主权项
地址
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