发明名称 |
BYPASS FILTER APPARATUS AND METHOD |
摘要 |
A filter sub apparatus comprising a housing configured to contain a filter and a bypass mechanism is provided. The bypass mechanism may be actuated upon debris buildup on the filter resulting in a load applied to the bypass mechanism rising above a predetermined lower level. A method to prevent chemical injection process failures may also be provided. The method may comprise the steps of providing a filter sub prior to a check valve. The filter sub may include a filter and a bypass mechanism. Another step may be passing fluid through the filter. In addition, the steps may also include containing at least some debris on a side of the filter such that the debris is prevented from reaching the check valve. A further step may be actuating the bypass mechanism after the debris builds up to a level in which a resulting load applied to the bypass mechanism exceeds a lower limit.
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申请公布号 |
US2009255878(A1) |
申请公布日期 |
2009.10.15 |
申请号 |
US20090423157 |
申请日期 |
2009.04.14 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
HIMMEL DAVID |
分类号 |
B01D35/14;B01D35/147;B01D35/153 |
主分类号 |
B01D35/14 |
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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