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Considered is a conception of combining seismic technologies (CT-seismic) based on the use of different seismic waves: reflected, scattered, and natural emission waves which are characterized by different origins and bring us diverse types of geological information. Considered is the conception of CT-seismic based on the use of Focusing Transformation of seismic wavefield introduced by Slionkin (SFT). SFT is the efficient tool allowing identify different types of seismic waves. Combined seismic survey allows materially extend the range of solutions at the stages of prospecting, exploration and production of HC resources. Presented are examples of applying CT-seismic to solving geological and geophysical problems at the exploration and production stages including an example of combing SVSL and CMP for offshore zone in Bering Sea. Presented is an example of applying CT-seismic for monitoring the production of HC to improve the oil recovery and production rate.

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