Application of AVO Inversion to the Forecast of Coalbed Methane Area

Based on the different elastic parameters and AVO attributes of the different types of coal, seismic attributes can be inversed and geological basis for the delineation of coal bed methane enriched area can be provided by the appropriate AVO formula. In this paper, the theoretical basis and practical process of AVO inversion are introduced. Through the combination of the G value and P value, the Δσ value is obtained which is sensitive to lithology variation. The application features of the AVO inversion in the coal bed methane exploration are analyzed.