| 发明名称 |
DOWNLINK BASED ON PUMP NOISE |
| 摘要 |
A method for determining a drilling event includes measuring a first signal from a sensor over a first selected time interval, measuring a second signal from the sens or over a second time interval, determining if a noise is reduced in the second signal.
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| 申请公布号 |
CA2599097(A1) |
申请公布日期 |
2008.03.18 |
| 申请号 |
CA20072599097 |
申请日期 |
2007.08.28 |
| 申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
FOLLINI, JEAN-MARC;HUTIN, REMI |
| 分类号 |
E21B47/00;E21B44/00;E21B47/12 |
主分类号 |
E21B47/00 |
| 代理机构 |
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