Method and system for drawing while-drilling curve along well drilling track

The invention provides a method and a system for drawing a while-drilling curve along a well drilling track. The drawing method comprises the following steps of: calculating coordinates of all points on the well drilling track curve under a system coordinate system; converting system coordinates of all points on the drilling trajectory curve into screen coordinates; calculating the offset coordinates of the screen coordinates according to an offset algorithm to obtain the offset screen coordinates; converting the offset screen coordinate into a system coordinate; and drawing a while-drilling curve according to the system coordinates. And an arc normal deviation method is adopted, so that the curve along the track can be drawn more accurately. 本发明提供的一种沿钻井轨迹随钻曲线绘制方法及系统，所述绘制方法包括：计算钻井轨迹曲线上各点在系统坐标系下的坐标；将所述钻井轨迹曲线上各点系统坐标转屏幕坐标；根据偏移算法，计算屏幕坐标偏移后的坐标，获得偏移后屏幕坐标；将所述偏移后屏幕坐标转换为系统坐标；根据所述系统坐标绘制随钻曲线。采用圆弧法线偏移法，能够比较准确的绘制沿轨迹曲线。