基于小波变换的密度测井高分辨率处理

Compensated densilog HR processing based on wavelet transformation

为了准确测量和评价薄油气层,研究了基于小波分析的密度测井曲线的高分辨率处理技术.以小波分析为基础,利用小波在时间(或空间)域和频率域内同时进行局部化信号分析和去噪的特性对密度测井曲线进行处理.结果表明,基于小波变换的密度测井高分辨率处理的实际应用效果,取决于小波函数与尺度因子的选择;高分辨率处理后,密度测井分辨率明显提高,储层的分层能力明显提高.

A high resolution processing technology for compensated densilogs has been studied based on wavelet analysis in order to accurate measurement and evaluation to thin hydrocarban zones. This technology is based on wavelet analysis to get compensated densilog high resolution processing by using the character of wavelet transformation in time domain (spatial domain) or in frequency domain localizing signal analysis and dislodging JS. The result shows the application effect on compensated densilog high resolution processing is based on both wavelet function and factor. The resolution of compensated densilogs after high resolution processing is greatly improved.