Abstract: The theoretic and actual geological models are developed based on heterogeneity or anisotropism of carbonate reservoir in Tahe oilfield, and its karst body's shape, scale, combination and distance apart from the Ordovician weathered surface, etc., in order to study the omnidirectional characteristics and synthetical mechanism. The corresponding relationship between degree of fissure-cavity reservoir development and character of seismic waveform is acquired. The category charts of various waveforms abnormities and such a reservoir are worked out. Effective prediction of such a reservoir is made using waveform analysis technology and drilling data. Case study shows good results for this technique application to the seismic development and drilling allocation in Tahe oilfield.

Key words: Tahe oilfield, carbonate rock, heterogeneity, seism, waveform, prediction