论文部分内容阅读
设计了一维窗函数滤波因子， 并采用快速傅立叶变换（ＦＦＴ） 技术对声波全波列测井波形进行了频率滤波， 获得了较纯的纵、横波和斯通利波波形。通过频率特性分析， 获得全波频率信息、能量信息， 这些信息能有效地用于地层渗透性、裂缝性及含油气性的评价。以现场实例讨论和分析了处理结果。
The filter factor of one-dimensional window function is designed and the waveforms of the acoustic wave logging waveforms are filtered by Fast Fourier Transform (FFT) to obtain the pure longitudinal, transverse and Stoneley waveforms. Through the frequency characteristic analysis, the full-wave frequency information and energy information can be obtained, which can be effectively used in the evaluation of formation permeability, fractures and hydrocarbon-bearing properties. The case is discussed and analyzed.