【摘要】 针对高分辨率层序地层单元的划分问题,利用迄今分辨率最高、连续性最好的测井资料,对其应用小波变换进行数据处理的方法。经实际应用结果表明,测井资料的小波变换能够很好地识别地质作用中的隐蔽周期。通过大量的实际对比工作,发现利用dmey小波对自然伽玛曲线做一维连续小波变换,以及利用Daubechies小波对电阻率曲线做一维离散小波变换,都能在地层多级别旋回性的研究中取得较好效果,并且克服了利用岩心资料分析确定层序界面时的人为影响,弥补了利用岩心、地震等资料确定层序界面位置时的模糊缺陷,使层序界面的位置客观、准确。更多还原

【Abstract】 High resolution sequence stratigraphic division based on the wavelet transform of logging data is found to be good at identifying subtle cycles of geological process in the paper.The analysis of multi-scales gyre of formation with 1-D continuous dmey wavelet transform to GR logging data and 1-D discrete Daubechies wavelet transform to Rt logging data all make the division of sequence interfaces more objective and precise,which avoids the artificial effect with core analysis and the uncertainty with seismic data and core analysis.更多还原