发明名称 |
CONTRACTION JOINT WITH MULTIPLE TELESCOPING SECTIONS |
摘要 |
An expandable contraction joint is disclosed. Telescoping sections form a contraction joint with an expandable control line (electric, hydraulic or combination) extends through the contraction joint. An external mandrel provides superior mechanical support. The control line can be coiled within the contraction joint to accommodate the changing length. |
申请公布号 |
WO2015143171(A1) |
申请公布日期 |
2015.09.24 |
申请号 |
WO2015US21490 |
申请日期 |
2015.03.19 |
申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
GRATTAN, MARK;SEMIN, LEONID |
分类号 |
E21B17/07;E21B17/02;F16L27/12 |
主分类号 |
E21B17/07 |
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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