Elastic information carries important information concerning subsurface fluid types. It is highly valued by seismic exploration industry. Compared with other methodologies (e.g. 9C VSP and 3D3C), pre-stack P-wave methods are extensively employed in addressing reservoir and fluid prediction, due to its wide availability of data. However, many traditional technologies can hardly extract accurate P-wave and S-wave information from conventional pre-stack PP data. In this paper, the concept of pre-stack elastic integration is proposed, which emphasizes comprehensive interactions among rock physics, amplitude-preserved processing and inversion algorithm. Then, pre-stack elastic integration is applied to Ordovician carbonate cave reservoirs in Tahe Oilfield, by which fluids can be identified with high precision.


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