发明名称 |
SLACK ADJUSTMENT FOR SLIP SYSTEM IN DOWNHOLE WELL APPARATUS |
摘要 |
<p>BP-126-PA-US A well packer having a radially extendable and retractable resilient annular sealing element and slip assembly includes a slack adjusting mechanism for maintaining the cooperating slip cones and slip members in an axially adjusted position to reduce radial play in the slip members when the slip assembly is in the retracted condition. The slack adjusting mechanism includes an internal threaded sleeve threadedly engaged with an integral tubular portion of the upper slip cone. The sleeve is disposed between the slip assembly and the sealing element and includes an annular seal urging shoulder formed thereon.</p> |
申请公布号 |
CA1178534(A) |
申请公布日期 |
1984.11.27 |
申请号 |
CA19820404826 |
申请日期 |
1982.06.09 |
申请人 |
BAKER INTERNATIONAL CORPORATION |
发明人 |
FISHER, HIRAM H., JR. (DECEASED) |
分类号 |
E21B23/01;E21B33/1295;(IPC1-7):E21B33/128 |
主分类号 |
E21B23/01 |
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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