Abstract:Seismic energy absorption is usually very serious in viscoelastic media such as "gas cloud" areas or shallow mud belts. This absorption causes weak seismic signals, frequency loss, wavelet distortion and other problems which affect deep seismic imaging. In order to improve deep seismic imaging, we work on Kirchhoff integration migration based on Q imaging. The Q imaging process is strictly obedient to the wave field propagation path. The imaging will make up for media non-elastic absorption, and achieve amplitude compensation and phase correction. Compared with conventional 1D inverse Q filtering, the Q compensation is more accurate. The Kirchhoff Q integration migration can effectively improve the resolution and the fidelity of deep seismic signals which can meet the requirements of prestack inversion and reservoir prediction. Real data applications show that the proposed migration can significantly improve amplitude, widen the frequency band, and improves seismic data resolution.
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