发明名称 |
MID-SEAL FOR EXPANDABLE CONNECTIONS |
摘要 |
An expandable tubular connection includes a pin member and a box member. The pin member includes a pin thread formed on a small step and a large step and a first seal surface formed between the small step and the large step. The box member includes a box thread formed on a small step and a large step and a second seal surface formed between the small step and the large step. The pin thread and the box thread are wedge threads. Upon a selected make-up of the pin member with the box member a selected gap exists between the first seal surface and the second seal surface. The gap is selected such that, when plastically radially expanded by a selected amount, a seal is formed between at least a portion of the first seal surface and the second seal surface. |
申请公布号 |
EA013305(B1) |
申请公布日期 |
2010.04.30 |
申请号 |
EA20080000449 |
申请日期 |
2006.07.25 |
申请人 |
HYDRILL COMPANY LP |
发明人 |
SIVLEY ROBERT, S., IV;WARD GARY, W.;REYNOLDS HARRIS A., JR. |
分类号 |
F16L37/24;F16L37/00 |
主分类号 |
F16L37/24 |
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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