发明名称 Fracturing plug convertible to a bridge plug
摘要 A tool that is easily convertible from a frac plug to a bridge plug is disclosed. The tool comprises a mandrel with a mule shoe connected to the lower end thereof. A closing ball is disposed in a cavity defined by the mule shoe. The mandrel is threaded to receive a plug at or near the upper end thereof to convert the frac plug to a bridge plug.
申请公布号 US7740079(B2) 申请公布日期 2010.06.22
申请号 US20070893445 申请日期 2007.08.16
申请人 HALLIBURTON ENERGY SERVICES, INC. 发明人 CLAYTON ROBERT;PORTER JESSE
分类号 E21B33/12;E21B33/129 主分类号 E21B33/12
代理机构 代理人
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