发明名称 |
Controlled pressure equalization of atmospheric chambers |
摘要 |
Methods and devices for equalizing an atmospheric chamber within a well tool in a controlled manner following the operation of setting the well tool. A packer setting tool has a setting mechanism with an atmospheric chamber and an equalization assembly to permit the pressure differential between the atmospheric chamber and the surrounding annulus to be substantially equalized.
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申请公布号 |
US7913770(B2) |
申请公布日期 |
2011.03.29 |
申请号 |
US20080164536 |
申请日期 |
2008.06.30 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
SCHRAMM ROBERT D.;AVANT MARCUS A. |
分类号 |
E21B33/12;E21B34/06 |
主分类号 |
E21B33/12 |
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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