发明名称 |
High pressure and temperature seal for downhole use |
摘要 |
A seal for use in temperature and pressure extremes is disclosed. It features springs internal to the sealing members and the ability to seal against pressure differentials from opposed directions. A spacer ring prevents contact from oppositely oriented seal components and at the same time prevents spring and seal collapse under extreme loading conditions. The seal assembly is self-centering in a downhole seal bore and can be used on tools delivered on wireline, where the insertion forces available are at a minimum. The seal can withstand pressure differentials in excess of 13,500 PSI and temperatures above 350 degrees Fahrenheit.
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申请公布号 |
US2003222410(A1) |
申请公布日期 |
2003.12.04 |
申请号 |
US20030443489 |
申请日期 |
2003.05.22 |
申请人 |
WILLIAMS RONALD D.;WELCH EDWARD WAYNE |
发明人 |
WILLIAMS RONALD D.;WELCH EDWARD WAYNE |
分类号 |
E21B33/00;E21B33/12;(IPC1-7):H02G15/013 |
主分类号 |
E21B33/00 |
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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