CAJ | 학술논문

小波变换是进行测井层序地层研究的重要辅助手段。以辽河盆地东部凹陷XK地区沙河街组地层沙三段为例,对测井曲线应用一维连续小波变换,并借助于小波变换后的某个尺度下的小波系数曲线和在所有尺度下的小波系数谱,对该地区沙三段地层进行了层序地层研究,并建立了该地区沙三段层序地层格架,总结了小波变换后得到的小波系数曲线与小波系数谱中各自的变化情况所对应的地质意义。
소파변환시진행측정층서지층연구적중요보조수단。이료하분지동부요함XK지구사하가조지층사삼단위례,대측정곡선응용일유련속소파변환,병차조우소파변환후적모개척도하적소파계수곡선화재소유척도하적소파계수보,대해지구사삼단지층진행료층서지층연구,병건립료해지구사삼단층서지층격가,총결료소파변환후득도적소파계수곡선여소파계수보중각자적변화정황소대응적지질의의。
Wavelet transform is the important supplementary means of log sequence stratigraphy study.This paper takes Shahejie Formation of the Xinkai-dongjiagang area in East Depression of Liaohe Basin as an example,one-dimensional continuous wavelet transform was applied on the log curve,with the help of the wavelet coefficients curve from the transform and wavelet coefficients spectrum in all scales,studying the characteristics of the sequence stratigraphy of the Shahejie formation in this region,and then building the sequence stratigraphic framework of Shahejie formation.Conclusions were obtained： different changes in wavelet coefficients curve and wavelet coefficients spectrum have different geological significance.