Research Of Vector Method Of Geological Map Based On Logging Data

The article focuses on the vector method of the geological map base on the logging data. First, we need to preprocess the well logs and geological maps. For images which contain different types of noises, we usually take different methods to deal with them, even for other images, it needs to use combination of several methods to deal with them in order to achieve the desired results. Geological maps contain original log curves, isopleths, contours and a variety of geological symbols, as well as other related elements. It could isolate log curves through the image segmentation and extraction algorithms, and then we use curve tracking methods to track original log curves, and output the DXF format image.In the curve tracing process, it will meet different types of logging curves. For the well log based on grid, it often tracks down with the coordinate grid, which can lead to incorrect tracking results. Thus, by the improved algorithm, it can achieve good results when handling with the logging curves containing the coordinates. In the logging curve extraction methods, it introduces solid and dashed lines of tracking method. For the solid curve of log, it is based on the real axis line extraction methods, whereas for the dashed curve log, it uses the dotted line method based on the extraction fitting center of gravity. Isopleths and contour derived from logging curve are also very important geological maps, so this paper also carries out some studies in this area.Vector-based geological map storage format, the DXF format storage, is essential for this research work. In the process of understanding DXF format, it takes some research on the method of storage, and it has applied to the actual developments and achieved desired results.