微地震相自动化解释及其应用

微地震相分析着眼于地震反射波形,目的是确定地下储层的横向岩性变化。该方法基于这样的假设,当沉积单元发生变化时.其地震反射波的振幅、频率和相位必定有所变化,即不同成因的地质体,必定有相应的地震反射波形特征。据此.本文应用模糊动态聚类和模式识别相结合的方法,在人机交互解释系统上自动实现微地震相分析。

Automatic interpretation of micro seismic facies and the application

Micro seismic facies analysis, which is based on reflection waveform analysis, aims at determination of lateral lithology variation in reservoir. The assumptive premise of the method is that the variation of sedimentary unit must result in changes in amplitude, frequency and phase of reflection wave from the sedimentary unit; in other words, different geologic horizons cause different waveforms of seismic reflections. Hence, micro seismic facies analysis can be successfully achieved using interactive interpretation system plus fuzzy dynamic clustering and pattern recognition.