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公开(公告)号:US20130151158A1
公开(公告)日:2013-06-13
申请号:US13429173
申请日:2012-03-23
申请人: Andrew G. Brooks , Sugiura Junichi
发明人: Andrew G. Brooks , Sugiura Junichi
IPC分类号: E21B47/022 , G06F19/00
CPC分类号: E21B47/022
摘要: A method for making dynamic gravity toolface measurements while rotating a downhole measurement tool in a borehole is disclosed. The method includes processing magnetic field measurements and accelerometer measurements to compute a toolface offset and further processing the toolface offset in combination with a magnetic toolface to obtain the dynamic gravity toolface. Methods for correcting dynamic and static navigational sensor measurements to remove sensor biases, for example, are also disclosed.
摘要翻译: 公开了一种在钻孔中旋转井下测量工具时进行动态重力工具面测量的方法。 该方法包括处理磁场测量和加速度计测量以计算工具面偏移并且与磁性工具面结合进一步处理工具面偏移以获得动态重力工具面。 还公开了用于校正动态和静态导航传感器测量以去除传感器偏差的方法。
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公开(公告)号:US20130151157A1
公开(公告)日:2013-06-13
申请号:US13323116
申请日:2011-12-12
申请人: Andrew G. Brooks , Sugiura Junichi
发明人: Andrew G. Brooks , Sugiura Junichi
IPC分类号: G06F19/00
CPC分类号: E21B47/022
摘要: A method for making dynamic borehole azimuth measurements while drilling includes processing cross-axial magnetic field measurements in combination with accelerometer measurements to compute the dynamic borehole azimuth. In one or more embodiments, the cross-axial magnetic field measurements and the accelerometer measurements may be used to compute the magnitude of a cross-axial magnetic field component, a toolface offset, and a borehole inclination, which may in turn be used to compute the dynamic borehole azimuth. The disclosed methods may utilize near-bit sensor measurements obtained while drilling, thereby enabling a near-bit dynamic borehole azimuth to be computed while drilling.
摘要翻译: 用于在钻井时进行动态钻孔方位测量的方法包括结合加速度计测量来处理横轴磁场测量以计算动态钻孔方位角。 在一个或多个实施例中,横轴磁场测量和加速度计测量可以用于计算横轴磁场分量,工具面偏移和井眼倾斜的大小,其可以依次用于计算 动态钻孔方位角。 所公开的方法可以利用在钻井时获得的近位传感器测量,从而使得能够在钻井时计算近位动态钻孔方位角。
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