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Carbonate reservoirs in West China show tremendous exploration and development potential.These have become the key area for oil and gas reserves addition and sustainable resource development for China.Compared to conventional carbonate reservoirs,prediction of this kind of reservoir predominated by secondary storage is much more difficult and presents significant challenges.Seismic detection of dissolution pores and fractures always requires a high standard of technology,which puts further serious challenges on exploration and creates many technological issues for field development plans.The key geophysical problems are tackled based on a detailed analysis of exploration issues for such complex carbonate reservoirs.