Research Of Geometry Optimizing Design Methods Based On Geology Object

Seismic data field data acquisition is the most important link in the engineering geophysical field data,quality determines the interior and later explain the quality,which according to the geological target area reasonable observation system design is very important.At present,domestic exploration tasks to development in complex structure area gradually,in the exploration area of complex structure,it is important to design the observation system optimization,not the conventional design method of observing system of the traditional optimal design method of information effect,need innovation.The traditional observation system design is based on the theory of horizontal stacking,and this theory is based on the assumption of horizontal layered medium.In the face of the complicated underground structure,the traditional observation system design method is no longer applicable.Firstly,based on the ray tracing theory,a simple theoretical geological model is established.Based on the simple two dimensional observation system,the illumination energy and cover times of different geological structures are calculated.Then study the wave equation lighting simulation analysis method,establish the theoretical geological model simple,calculated according to the 2D observation system,calculate the lighting conditions in different geological structure and variation of different structure.The design of the observation system is further optimized according to the law of the change.The underground geological structure based on 3D geological model of earthquake,earthquake lighting model simulation,according to simulation conclusion according to the geological task of observation system acquisition parameters was further optimized,the optimum parameters of observation system,in the field,according to the surface obstacles and underground geological conditions,to optimize the design theory of observation system of shot points finally,the seismic data and imaging quality.The bin three area seismic data acquisition as an example,using the geological model of the observation system design optimization,select the best observation system,through 3D seismic illumination simulation,observation system for verification again.Because the surface area is extremely complex,the theory of observation system is very difficult to optimize reasonable implementation in the region.In order to fully consider the underground structure and the surface obstacles are projected to generate three-dimensional geological model,structural map,the section structure diagram to projection in satellite images containing surface obstacle,the theory of observation system of shot points combined with surface obstacles,according to the underground geological structure,on the basis of theoretical simulation before the conclusion.Optimize the view of surface shot points,variable illumination analysis using 3D geological model view observation system optimized,achieve the best shot point layout.Three shore area using method to optimize the actual seismic data collection in the field observation system concept,to obtain high quality data,the final section of party a praise.From the bin three area section,target layer imaging is clear,with the old and new data of adjacent area contrast,obviously improved.