Utilizing seismic inversion information in classifying coal structures

Based on the discrepancies in characters of different coal structures, the coal fractured zones are able to be determined by classifying different structural coal using the elastic parameters derived from the pre-seismic inversion. This paper introduced the theoretical basis and realization of the simultaneous inversion. Then, some primary analysis were conducted on the simultaneous inversion results, in which two lithological factors LR and MR have been obtained through LMR transform. By making use of the cross-plot of these two factors in analyzing the coal structures, the fractured zones have been delineated in mining district No.3 of Zhangji mine in South Anhui. This inversion analysis method can efficiently exploit the pre-stack information, which is often ignored in the past, significantly elevating the lithological explanation level.