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Gyroscopic steering tool using only a two-axis rate gyroscope and deriving the missing third axis
Gyroscopic steering tool using only a two-axis rate gyroscope and deriving the missing third axis
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机译:仅使用两轴速率陀螺仪并导出缺失的第三轴的陀螺仪转向工具
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摘要
A two-axis gyroscope used on a bottom hole assembly can be used for determining a rate of rotation about the rotational axis of a BHA. The method takes advantage of possible misalignment of at least one axis of the two axis gyroscope from orthogonality with respect to the rotational axis of the BHA, resulting in the misaligned gyro being sensitive to BHA rotation.
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