Well Log Curve Tracing Method Combining Micro-Viewpoint with Macro-Viewpoint

详细信息   

• 责任者：Yu Yanmei (Image Information Institute ; College of Electronics and Information Engineering ; Sichuan University ; Chengdu 610064 ; China) ; Chen Hong
• 刊名：Journal of Chengdu University of Technology
• 出版年：2008
• 卷期：35(2)
• 关键词：测井曲线 ; logging curves
• 页码：p.177-180
• 图表：4 illus., 9 refs.
• 分类号：1600
• issnNo：ISSN1671-9727
• isbnNo：CN51-1634/N

摘要

To improve the accuracy of automatically tracing of well log curves, an automatically tracing method for solid curves is proposed. It combines micro-searching method with macro-choosing method and is assisted by curve forecast. The micro-search is used to trace those solid curves which are not disturbed by other curves or coordinate grids, and the curve forecast is done in order to check the accuracy of the coming tracing points. A macro-choosing method based on weighted voting is proposed to choose the best suitable branch from the branches caused by disturbance. The experiments shows that the methods above are more accurate with fast speed, better aflti-disturbance ability, and can save time because pre-processing step of deleting coordinate grids is not needed.