发明名称 Casing centralizer
摘要 A tubing centralizer for borehole drilling disclosed. The centralizer includes a retaining collar and an outer sleeve. In a method for installing the centralizer onto a joint of tubing, the retaining collar is mounted onto the joint of tubing and the outer sleeve is installed thereover.
申请公布号 US6585052(B2) 申请公布日期 2003.07.01
申请号 US20020255394 申请日期 2002.09.27
申请人 TESCO CORPORATION 发明人 ANGMAN PER G.;TESSARI ROBERT M.
分类号 E21B17/10;(IPC1-7):E21B19/16 主分类号 E21B17/10
代理机构 代理人
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