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1. 发明申请

US20030220743A1 Inertially-stabilized magnetometer measuring apparatus for use in a borehole rotary environment 失效
标题翻译：用于钻孔旋转环境的惯性稳定型磁力计测量装置
公开(公告)号：US20030220743A1
公开(公告)日：2003-11-27
申请号：US10338564
申请日：2003-01-09
申请人： Scientific Drilling International
发明人： Donald H. Van Steenwyk , James N. Towle , Hans S. Fairchild
IPC分类号： G01V001/40
CPC分类号： E21B47/022
摘要： A measurement apparatus for making magnetic and gravity component measurements in a borehole, including measurements made while the apparatus is rotating about the borehole axis, comprising a magnetic field component sensing device having at least two axes of sensitivity normal to the borehole axis and normal to each other, a gravity field component sensing device having at least two axes of sensitivity normal to the borehole axis and normal to each other, an inertial angular rotation sensing device having an axis of sensitivity along the borehole axis to sense inertial angular motion about the borehole axis, control, power and processing circuitry to operate said sensing devices and to process the outputs of said sensing devices to obtain stabilized component data in a coordinate system that does not rotate with the said measurement apparatus, communication circuitry to transmit output data to auxiliary equipment at the surface or in the borehole, and support structure to support the sensing devices.
摘要翻译：一种用于在钻孔中进行磁力和重力分量测量的测量装置，包括在装置围绕钻孔轴线旋转时进行的测量，包括磁场分量感测装置，其具有至少两个灵敏度轴垂直于钻孔轴线并垂直于每个另一方面，重力场分量感测装置具有垂直于井眼轴线并且彼此垂直的至少两个灵敏的轴线，惯性角度旋转感测装置，其具有沿钻孔轴线的灵敏轴线以感测围绕钻孔轴线的惯性角运动，控制，电源和处理电路，以操作所述感测装置并处理所述感测装置的输出，以在不与所述测量装置一起旋转的坐标系中获得稳定的分量数据，通信电路将输出数据传输到辅助设备表面或井眼，支撑结构支撑传感装置。

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