基于小波熵水淹层识别方法探索
Progress in Geophysics（2007）
Abstract
储层的孔隙度和电阻率曲线间微差形态波形的复杂程度隐含着储层含油气性的信息,油层水淹程度不同,其时频平面上小波系数能量团存在着显著差异,随水淹程度加重,其能量团分布由复杂逐渐趋于简单单调.油层水淹信息映射在其小波系数能量熵特征上,可使油层水淹信息得到放大,更易于水淹程度识别.基于测井信息的小波熵识别水淹层的方法,对利用传统测井解释理论判别比较困难的低阻油层有较强的识别能力.
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Key words
the water flooded layer,low resistivity oil layer,continuous wavelet transform,wavelet entropy
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