发明名称 |
System and method for measurements of depth and velocity of instrumentation within a wellbore |
摘要 |
A survey tool for use in a wellbore includes a downhole portion having an axis. The downhole portion is adapted to move within the wellbore with the axis generally parallel to the wellbore. The survey tool further includes a first acceleration sensor mounted at a first position within the downhole portion. The first acceleration sensor is adapted to generate a first signal indicative of an acceleration of the first acceleration sensor along the axis. The survey tool further includes a second acceleration sensor mounted at a second position within the downhole portion. The second position is spaced from the first position by a non-zero distance along the axis. The second acceleration sensor is adapted to generate a second signal indicative of an acceleration of the second acceleration sensor along the axis. The survey tool further includes a controller adapted to receive the first signal and the second signal and to calculate a depth, a velocity, or both a depth and a velocity of the downhole portion in response to the first signal and the second signal.
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申请公布号 |
US7350410(B2) |
申请公布日期 |
2008.04.01 |
申请号 |
US20050134660 |
申请日期 |
2005.05.20 |
申请人 |
GYRODATA, INC. |
发明人 |
EKSETH ROGER;GREENSMITH MARTYN IAN |
分类号 |
E21B45/00;E21B47/022;E21B47/04;G01P3/42;G01P7/00 |
主分类号 |
E21B45/00 |
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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