打井技术测量
打井笼统的讲是一般乡村后者农田中打井取水的一种手段，但是在一些钻探石油等地区，打井需要根据地质特征做出一些测量的。借助于重力场测量井斜角或高边工具面，使用的测量仪器为测角器、罗盘重锤和重力加速度计等。这类仪器的测量基准是测点与地心的连线，即铅垂线。借助于地磁场测量井斜方位角或磁性工具面，使用的测量仪器为罗盘或磁通门等。这类仪器的测量基准是磁北极，所以磁性仪器测量的井斜方位角数据必须根据当地的磁偏角换算成真北极的数据。
根据一些地里水文特征在打井之前做出理性选择。
Well, generally speaking is a kind of means of the latter in rural farmland digging a well, but in some regi** such as oil drilling, drilling wells according to the geological features make some measurement. With the help of gravity field measurement of inclination or high side tool, measuring instrument used for the angle measuring device, the weight and the gravity accelerometer, compass. Measuring instrument of this type is the point and the line, namely the plumb line. With the help of the magnetic field measurement of azimuth angle or magnetic tool, measuring instrument used for flux gate compass or. Measuring instrument of this type is the magnetic north pole, so the data azimuth magnetic instrument to measure angle must be true polar data according to the conversion of local magnetic declination.
According to some in the hydrological characteristics to make rational choices in well before.
