单点井斜方位测量仪
single shot directional surveying instrument
井斜校正
deviation correction
hole deviation correction
inclination correction
hole-deviation correction
方位校正速度函数
azimuthcorrected velocity function
正方位正射投影
azimuthal orthomorphic projection
正方位正形投影
conformal azimuthal projection
地－井方位测量
surface-borehole azimuth survey
水平井方位
orientation of horizontal well