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地震信息中包括时间、振幅、频率、衰减、波形等有关的属性共40多种,但在沉积相、储层预测研究中常用的属性主要为振幅和波形。因此可以利用振幅、频率、相位等地震振幅谱特征分析储层发育、地层分析、油藏特征描述预测。地震振幅变化是地下地质结构、岩性和所含流体性质等多种因素的综合反映,利用地震波形综合分析可以对岩性和储层分布进而预测和描述储集层的发育规律。得到储层发育和变化的特点,进行精细地质研究,并利用地震波波形特点进行水平井跟踪,提高水平井油层钻遇率。
The seismic information includes more than 40 kinds of related attributes such as time, amplitude, frequency, attenuation and waveform. However, the commonly used attributes in sedimentary facies and reservoir prediction are amplitude and waveform. Therefore, the characteristics of seismic amplitude spectrum such as amplitude, frequency and phase can be used to analyze reservoir development, stratigraphic analysis and reservoir characterization. The seismic amplitude change is a comprehensive reflection of various factors such as the underground geological structure, lithology and the properties of fluids contained. Using the integrated analysis of seismic waveforms, the development law of the reservoir can be predicted and described for lithology and reservoir distribution. Get the characteristics of reservoir development and change, carry on the fine geology research, and make use of the characteristics of seismic waveforms to track horizontal wells and improve the drilling rate of horizontal well.