The Study Of Reflection Wave Extraction From Acoustic Reflection Logging Data

Acoustic reflection logging technology is one of the important logging technologies of acoustic logging in recent years,it uses the reflected waves which come from the interface around the borehole to research the geologic structure around the borehole,it not only can make up the detecting depth of conventional logging,but also has higher resolution than seismic exploration.Based on the research of the latest development in reflection extraction home and abroad,this paper make a deeper research.The main contents include three aspects following:First,researching the principle and wave field of different acoustic reflection logging technologies(monopole.dipole and phased array).Second,the principle,advantages and disadvantages,and the application conditions of media filtering,FK filtering,SVD and Parameter estimation are researched systematacially.Then verified by the simulated data,and the processing result shows four methods are all effective which can suppress direct wave and singularize reflect wave.The methods are proved to be correct and effective.In the end,applying the program to the actual data,the processing result shows that media filter and FK filter have the same effect for Azimuthal Reflection Acoustic Logging data.