发明名称 IMPROVED LIMIT COLLAR
摘要 A limit collar includes a limit component coupled to a surface of a wellbore tubular; and an interface component engaging the limit component. The interface component may include an extension, and wherein at least one surface of the extension is coupled to the limit component. The extension may also include a side extension.
申请公布号 EP2702228(A2) 申请公布日期 2014.03.05
申请号 EP20120719780 申请日期 2012.04.25
申请人 HALLIBURTON ENERGY SERVICES, INC. 发明人 LEVIE, WILLIAM, IAIN, ELDER
分类号 E21B23/00;E21B17/10 主分类号 E21B23/00
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