Automatic drawing technique for horizontal projection diagrams of exploration borehole deviations

Abstract

The objective of this paper is to propose an automatic drawing technique for horizontal projection diagrams of exploration borehole deviation. In this study, a computer program was developed so as to achieve AutoCAD automatic creation of horizontal projection diagrams with low computational complexity. The main procedures include: the original borehole deviation data are used, the coordinates of the measuring points are calculated by using the average zenith angle and azimuth angle, the coordinates of the middle points are determined using the average borehole section length, and the final coordinates and the respective AutoCAD drawing exchange files are outputted. The conclusions are: the drawing exchange files can be called directly by the AutoCAD software, thereby achieving the automatic drawing of the horizontal projection diagrams of the borehole deviations. An example is provided to demonstrate that the proposed automatic drawing method is correct, concise, and efficient. And this automatic drawing technology provides significant advantages, avoiding the shortcomings of inefficient and error-prone method in the past.