2010•Coal Geology of ChinaRequires access
The Use of Wave Impedance Inversion in Prediction of Magmatic Intrusive Extent in Coal
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Abstract
There are 13 boreholes laid out in the Liuqiao mine area,in which,6 coal seams have found magmatic intrusions in Nos.11-6 and 3-2 boreholes,but it is very hard to determine intrusive extent.Thus,seismic well constrained wave impedance inversion technique is used,to use logging data high longitudinal resolution characteristics carry out well side seismic data well constrained inversion.On this basis,inversion has carried out for cross-borehole seismic data to deduce spatial variation of magmatic rocks.Lithologic information revealed from underground indicated that magmatic rock distribution extent in Liuqiao mine area predicted from wave impedance is quite coincided with practically revealed information;the intrusive extent is mainly concentrated in southwestern part of the study area.