Abstract：A set of key techniques of seismic exploration is proposed for the identification of deep carbonate fracture-cavity bodies and small faults in the Yingxiongling structural belt of the Qaidam Basin. First of all， from the aspect of data acquisition， the imaging accuracy of small faults can be improved by expanding the observation orientation， using a small combination of excitation and reception， and adopting an even arrangement of source and receiver points. From the aspect of seismic data processing， OVT domain multi-dimensional fidelity noise suppression technology and thick surface Q compensation processing technology can be used to improve the signal-to-noise ratio and fidelity and effectively increase the bandwidth and resolution of seismic data. From the aspect of seismic data interpretation， the sub-azimuth data volume and artificial intelligent fault identification technology can be used to identify small faults effectively，and the anisotropic strength attribute can be used to identify the fracture-cavity body effectively.The techniques can be used for reference in other similar areas.
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