High Precision NMO and Stacking Technique Research and Application
|Course||Earth Exploration and Information Technology|
|Keywords||NMO correction NMO stretch Stacking velocity Cross-correlation CMP stacking|
The focus of this research is a high-precision dynamic correction and stack technology . On the basis of previous work , move NMO correction method to the conventional point-by-point approximation of the actual travel go to add higher-order terms , as well as add a correction term based on the optimization method to achieve large offset NMO correction . Pointwise moving NMO stretch , and resistance to stretching method . Overall move move correction method to analyze the defects , based on the similarity of lateral optimization superposition method combined optimization dynamic correction method proposed vertical sliding as much as possible to retain long -offset signal , while achieving a transverse comparison of the similarities between the seismic channel . Finally, take the smart superposition method , further highlight the effective signal to suppress the noise and interference . The model test and the actual data processing to obtain better results.