本文介绍了瞬时速度的计算方法和瞬时信息在预测油气层方面的应用。在已知油气区出现的瞬时信息异常,通常表现为偏低的瞬时速度和高频弱振幅背景上出现相对稳定的低频强振幅包络。列举的例子和已有的钻探资料是吻合的。本文还简单地总结了应用合成记录的初步效果。 This article describes the calculation of instantaneous velocity and the application of instantaneous information in the prediction of oil and gas layers. The instantaneous information anomalies that occur in known oil and gas regions are usually characterized by a relatively low instantaneous velocity and a relatively stable low-amplitude, strong amplitude envelope over a high-frequency and weak-amplitude background. The cited examples are consistent with the existing drilling data. This article also briefly summarizes the preliminary results of applying synthetic records.