发明名称 Downhole pulling tool
摘要 <p>A downhole pulling tool (100) for retrieving downhole devices (102, 104) from a wellbore is disclosed. The downhole pulling tool (100) comprises a mandrel (106)and a sleeve (108) that is slidably disposed about the mandrel (106). The sleeve (108) is moveable in a first direction from a first position to a second position relative to the mandrel (106) and is moveable in a second direction from the second position to a third position relative to the mandrel (106). An engagement member (114) radially extends between the mandrel (106) and the sleeve (108) and is operated from a retracted position to an engagement position when the sleeve (108) is moved to the second position relative to the mandrel (106) after equalization. One or more shearable members (118) also radially extend between the mandrel (106) and the sleeve (108) to limit the movement of the sleeve (108) relative to the mandrel (106) in the second direction until a predetermined axial force shears the shearable members (118) allowing the sleeve (108) to move to the third position relative to the mandrel (106). &lt;IMAGE&gt;</p>
申请公布号 EP1030030(A2) 申请公布日期 2000.08.23
申请号 EP20000300500 申请日期 2000.01.24
申请人 HALLIBURTON ENERGY SERVICES, INC. 发明人 VICK, JAMES D, JR.;BRABY, MIKE L.
分类号 E21B23/02;E21B31/20;(IPC1-7):E21B23/02 主分类号 E21B23/02
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