SOME KEY TECHNIQUES IN 3-D SEISMIC EXPLORATION DATA PROCESSING OF DISTRICT——IN THE CASE OF XIEQIAO MINE,HUAINAN

The high resolution 3-D seismic exploration in district is a new technique used in producing mine to find out the subtle geological structure in recent year and the data processing is the key link of this technique whether it is successfully applied or not.The main technology is using DMO stack to replace conventional CMP stack,using partial migration before stack with migration after stack to replace migration before stack,using accurate statics and two step deconvolution,and using high frequency compensation after stack.The results show that the above mentioned technique is the effective method to obtain high resolution,high signal/noise ratio,high fidelity 3-D data body