| 摘要 |
A method of determining an optimum processing sequence by calculation of processing sequence sensitivity and processing sequence error. A reference seismic processing sequence is applied to input raw gathers to obtain reference seismic output data. A series of test seismic processing sequences are applied to the input raw gathers to obtain test seismic output data. The RMS value of the test seismic output data is normalized to that of the reference seismic output data on a trace by trace basis. The normalized difference between the test and the reference seismic output data is calculated on a sample by sample basis in the time domain and are displayed on color coded plots in the time scale format over the CDP range. Linear regression is performed for each CMP gather to obtain the stack and the zero offset calculated for each time index and the difference is recorded. The normalized differences between the error for the test and the reference sequences are calculated and displayed on color coded plots. The order of sensitivity for each processing step in the reference processing sequence is determined. If necessary, any processing step is rejected and the reference processing sequence is revised. |
