Abstract:The fault system in the study area features high complexity, and it is characterized by high-density faults, short extend length, small displacement, and complicated relationship between faults.Thus, conventional seismic interpretation methods are not adequate to describe this fault system due to very complicated fault planar connections.For this reason, we propose a multi-technique combination for this complex fault system interpretation.This technology portfolio consists of structure-oriented filtering, horizon-fault interaction interpretation, discrete frequency coherency multi-scale fault imaging, weak signal enhancement, and multi-attribute and multi-information fusion.The process of the technology portfolio includes poststack interpretative processing, preliminary fault interpretation, elaborate fault characterization, achievement verification, and output.The technology portfolio is applied in complex faults of the area M.The results are very encouraging:30 traps confirmed, 90% drilling success ratio achieved based on proposed 20 wells, and 4 commercial oilfields discovered, which proves the validity of the proposed technology portfolio.
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