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DOI:
计算机系统应用英文版:2013,22(3):182-185,152
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改进的小波阈值法在测井曲线去噪中的应用
(1.东北石油大学 计算机与信息技术学院, 大庆 163318;2.中国石油渤海钻探第一钻井分公司70025钻井队, 天津 300270;3.大庆油田工程有限公司 市场开发部, 大庆 163712)
Application of Improved Wavelet Threshold Method to Logging Curves Denoising
(1.School of Computer and Information Technology, Northeast Petroleum University, Daqing 163318, China;2.No. 70025 Drilling Crew, The First Drilling Company of CNPE Bohai Drilling, Huangshan 245021, China;3.Department of Market Development, Daqing Oilfield Engineering Co.Ltd, Daqing 163712, China)
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Received:August 08, 2012    Revised:September 15, 2012
中文摘要: 介绍了基于小波阈值法的测井曲线滤波原理, 分析了现有小波阈值函数和阈值特点, 提出了一种改进的小波阈值去噪法. 通过Heavisine信号的仿真实验以及测井曲线实例表明, 改进的小波阈值法在有效滤除测井信号中的噪声的同时又可以保留曲线的细节信息, 在测井曲线去噪处理中得到很好的应用.
中文关键词: 小波阈值法  阈值函数  测井曲线  去噪
Abstract:The paper introduces the logging curves filtering principle based on wavelet thresholding method ,anlyses the thresholds and wavelet thresholding functions characteristics, then an improved wavelet threshold denoising method is proposed. The simulation experiment of Heavisine signal and logging curves example results show that, the improved wavelet thresholding method can preserve curves datails well while reducing noise efficiently and it can get good application in logging curves denoise processing.
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基金项目:国家自然科学基金(61170132)
引用文本:
吴雅娟,高兴,王辉,刘晓光,李国家.改进的小波阈值法在测井曲线去噪中的应用.计算机系统应用,2013,22(3):182-185,152
WU Ya-Juan,GAO Xing,WANG Hui,LIU Xiao-Guang,LI Guo-Jia.Application of Improved Wavelet Threshold Method to Logging Curves Denoising.COMPUTER SYSTEMS APPLICATIONS,2013,22(3):182-185,152