AVO技术在寻找薄气层中的应用

APPLICATION OF AVO TECHNOLOGY TO THIN GAS RESERVOIR EXPLORATION

1. 同济大学,上海200092;2. 地质矿产部第一海洋地质调查大队,上海201208

1. Tongji University, Shanghai 200092;2. The first Maring Silvery Brigade, MGMR, Shanghai 201208

本文采用固体多层介质反射波理论记录的正演计算与实际地震记录的AVO异常相结合的方法,以钻井资料为基础,结合其它地质、物探资料进行综合解释.圈定了砂岩储集层的AVO异常范围,确定了油气边界,并已由钻井验证。

In this paper, an integrated interpretation with borehole data, geological information and various geophysical data is made to delineated the gas/oil contact and the extent of an AVO anomaly over a sand reservoir by means of fitting seismograms synthesized for multilayered media into field data in whichAVO anomalies exist. Recent drilling data has confirmed the results.