发明名称 |
Downhole tubing |
摘要 |
A downhole apparatus comprises a plurality of tubing sections. Each tubing section has substantially cylindrical portions initially of a first diameter for coupling to end portions of adjacent tubing sections. The end portions are expandable to a larger second diameter. Each tubing section also has an intermediate folded wall portions initially in a folded configuration. The intermediate folded wall portions are unfoldable to define a substantially cylindrical form of a third diameter.
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申请公布号 |
US2002108756(A1) |
申请公布日期 |
2002.08.15 |
申请号 |
US20010032998 |
申请日期 |
2001.10.25 |
申请人 |
HARRALL SIMON JOHN;METCALFE PAUL DAVID;TILTON FREDERICK T. |
发明人 |
HARRALL SIMON JOHN;METCALFE PAUL DAVID;TILTON FREDERICK T. |
分类号 |
E21B43/10;(IPC1-7):E21B17/00 |
主分类号 |
E21B43/10 |
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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