The Research And Application Of Sampling Of Parameters In Radon Transform

In recent years,with the vigorous development of China's economy,the development of new energy globally to vigorously promote the environment,development and utilization of our country has been committed to the new energy,but there are still limitations of popularization and application in the field of extent.Demand for traditional energy for economic development at present is still in a dominant position,especially the demand for oil and gas resource is enormous,it also makes for the development and utilization of resources of oil and gas reservoir gradually thorough,but at this stage in our country,most of the conventional structural oil reservoirs have been discovered and developed,making the exploration the target becomes more complex,gradually from simple structural hydrocarbon reservoir to reservoir with complex structure transition,shift from the traditional oil and gas reservoir to litho logic reservoirs and complex fractured reservoirs,which makes the development greatly enhance the difficulty of exploration technology and methods of continuous improvement and innovation.The Radon transformation is often applied to seismic data processing,especially in event identification and estimation.The basic core principle of the Radon transformation is that selecting different velocities to map to the Radon domain can effectively eliminate the interference signal to retain valid signals.The conventional Radon transform is the addition of seismic data along the integration path,which is essentially the superposition of the amplitude.Compared with other types of mathematical transformation method,Radon transform can more clear intuitive depict the physical properties of a feature,the result comparison and analysis of the seismic data is of great significance.Radon transform is the effective method to eliminate the multiple wave and extraction rate difference,its curvature parameter sampling and the number of iterations and calculation on accuracy of transformation has the extremely important influence.In the process of Radon transform,sampling is unreasonable,if transform parameters in the process of filtering is likely to change the amplitude of real seismic synthetic axis,part of the energy will take the form of aliasing in the region of the Radon transform decomposition of multiple wave.In Radon transform parameters in the process of sampling,often exist aliasing phenomenon,this phenomenon is generally produced in curvature parameter in the process of sampling,in the direction of the t or ? parameter sampling will not appear.The sampling of the parameters depends mainly on the handler itself,which can affect the accuracy of the transformation when sampling insufficient or sampling in the p and q directions.Therefore,the stability of Radon transformation method and the study of anti-false frequency are very important.In this regard,this paper study and discuss the factors influencing the accuracy of Radon transform,the optimal parameters of the specific range curvature parameter and least square iteration time domain least square hyperbolic Radon transform,the Radon transform to get better effect at the same time transform with minimum computational time.In addition,this paper summarizes the characteristics of Radon transform parameters in the various forms of value,and gives the application of Radon transform in practical seismic exploration process,the basis of the above program,discussed some typical theoretical models and real seismic data,the application test of the theoretical model and actual seismic the data accuracy and verify the proposed method is effective and practical.