| 发明名称 |
TRIPPING INDICATOR FOR MWD SYSTEMS |
| 摘要 |
<p>A method for surveying a formation includes conveying a survey instrument into the wellbore; measuring one or more parameters of interest relating to a wellbore tubular in the wellbore; and operating the survey instrument after the measured parameter of interest indicates that the wellbore tubular is being tripped out of the wellbore.</p> |
| 申请公布号 |
CA2711442(C) |
申请公布日期 |
2014.03.25 |
| 申请号 |
CA20082711442 |
申请日期 |
2008.12.31 |
| 申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
ESTER, ROBERT;BYNUM, JONATHAN |
| 分类号 |
E21B44/00;E21B44/02;G05B13/04 |
主分类号 |
E21B44/00 |
| 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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