In western China, carbonate reservoirs are deeply buried and the surface is very loose. Due to Earth filtering, the high-frequency component of seismic waves is seriously absorbed. This causes a decrease in the dominant frequency and a narrowing of the frequency bandwidth of the seismic signals from a deep target. In the Tarim Basin, the most prospective reservoirs are below 6000 m. The seismic data recorded in these areas always show weak energy, low frequency, and phase distortion. Additionally, due to the desert surface, the energy of the seismic waves suffers serious absorption.

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