A new well straightening control method for improving vertical precision of vertical drilling trajectory;
提高垂直钻井轨迹垂直精度的纠斜控制新方法
Through measurement checkout, the monitoring distanceCdis-tance between base point and monitoring point) is less than 3 km,the level precision reaches±2-3mm and the vertical precision reaches±4-6mm by GPS phase observations 20minutes.
经实测检验,当基准点与监测点之间距离在3km内,用20分钟GPS观测值,Gquicks软件解算的水平精度可达±2-3mm,垂直精度可达±4-6mm。
When the monitoring distance (distance be tween base point and monitoring point) is less than 3 km, the level precision reach?-3mm and The vertical precision reach ?-6mm by GPS phase observations of 20Minute.
经在三峡库滑坡监测的实测检验,当基准点与监测点之间距离在3km内,用20分钟GPS观测值,Gquicks软件解算的水平精度可达±2-3mm,垂直精度可达±4-6mm。