振幅信息在川南永安场构造的应用

Application of Amplitude Information to Yonganchang Structure in South Sichuan

在川南二叠系阳新统大套碳酸盐岩中,含气裂缝带垂向位置的差异,将导致地震波振幅的复杂变化。拾取不同类型的振幅异常,可预测出含气裂缝带的空间分布。利用永安场构造的钻井资料对预测裂缝带进行符合性检验,证明这一方法是可行的。

The difference of the vertical positions of gas-bearing fractured zones will make the seismic amplitude changed complexly in the carbonate rocks of Yangxin Series. Perrnian. in South Sichuan. Picking up the amplitude anomalies with various types may predict the spacial distribution of gas-bearing fractured zones. A conformability check on predicting fractured zones by use of the drilling data gained from Yonganchang Structure has proved that this method is feasiblc.