AVO Analysis Combined With Teager–Kaiser Energy Methods for Hydrocarbon Detection

An improved amplitude variation with offset (AVO) attribute analysis method combined with the Teager–Kaiser energy methods for hydrocarbon detection is proposed in this letter. It has a stronger ability to reveal the subtle amplitude anomaly changes caused by hydrocarbons than the traditional AVO analysis method. The Teager–Kaiser energy operator (TKEO) algorithm is used for enhancing the hydrocarbons’ characteristics of the prestack gathers. The cross Teager–Kaiser energy operator (CTKEO) is further employed to efficiently highlight the AVO feature of the gathers by calculating the energy interaction between the first trace and the other traces. Finally, the intercept and gradient product (PG) parameters are obtained through AVO analysis for hydrocarbon detection. The model test and the field data applications show that the proposed method can effectively target the gas reservoirs. This letter presents a complementary approach to current AVO analysis methods.