AVO正演模型研究及应用

AVO forward model study

杨新菊 马建德

Yang Xinju Ma Jiande

中国石油化工股份有限公司上海海洋油气分公司研究院, 上海 200120

Institute of SINOPEC Shanghai Offshore Petroleum Company, Shanghai 200120, China

以LogM正演模型软件为研究手段,研究了单界面、三层介质双界面和连续介质多界面时的AVO异常类型特征及变化规律。此外,制作实际井资料的AVO正演模型,对东海某区A井H4油气层AVO异常较清晰、某区B井P8c气层无明显AVO异常显示的缘由进行了分析。

This paper studies the AVO character anomaly types and its change rules of single stratum surface, two strata surface with three lithologic medium, or multiple stratum surfaces, and the software named LogM is a powerful tool. Based on the real well information, AVO forward model gives out the possible reasons why well A shows out the good features of AVO character other than some layer of well B.