发明名称 |
GAS LIFT MANDREL |
摘要 |
<p>A side-pocket gas lift mandrel having tapered end caps threaded onto the end s of the mandrel with metal-to-metal sealing threads. The thickness of each ma de up thread set is the same as the thickness of the small end of each end cap, resulting in a mandrel having the same outside diameter as if the end caps were welded on, without sacrificing any inside diameter in the small ends of the end caps, compared to a welded mandrel.</p> |
申请公布号 |
CA2496737(A1) |
申请公布日期 |
2004.03.04 |
申请号 |
CA20032496737 |
申请日期 |
2003.07.31 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
ROTH, BRIAN A.;KRITZLER, JAMES H.;HEGDAHL, ROGER D. |
分类号 |
E21B23/03;E21B43/12;(IPC1-7):E21B43/12 |
主分类号 |
E21B23/03 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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