关于三分量井中磁测钻孔方位角误差的讨论

Discussion on the azimuth error of magnetic borehole measurement in three-component wells

在三分量井中磁测时,有时需要提交钻孔倾角和方位角的数据参考资料,在没有陀螺测斜仪的情况下,在某些条件下,利用三分量井中磁力仪则能提交出满足精度要求的倾斜方位。本文从原理计算到模型实验,来探讨各种情况下,三分量井中磁力仪测量钻孔方位角的误差。

In three-component well magnetic survey,it is sometimes necessary to submit data reference of borehole dip and azimuth angle.Without gyroscope inclinometer,under certain conditions,the inclination azimuth satisfying accuracy requirements can be presented by using three-component well magnetometer.From principle calculation to model experiment,the error of borehole azimuth measurement by magnetometer in three-component well is discussed in this paper.