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Using simulated annealing algorithm to pre-stack seismic inversion

LIU Quanxin， FANG Guangjian   

  1. Research Institute of Petroleum Exploration & Development-Northwest （NWGI）， PetroChina， Lanzhou 730020， China
  • Online:2010-03-15 Published:2010-03-15

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Abstract:

The principle of pre-stack simultaneous inversion and simulated annealing algorithmis discussed. It introduced the technical process to achieve the pre-stack simultaneous inversion using simulated annealing algorithm, and departed the process into four steps: high-fidelity seismic data processing, common angle gather generation, wavelet extraction and synchronous inversion. The application of simulated annealing algorithm in pre-stack simultaneous inversion is described. This method was proved in Sulige Gas field, and the result shows the features: fast calculation, stable algorithmand good prediction effect. Forecasting results verify the effectiveness of this proposed method.

Key words: lithologic seismic exploration , lithology prediction , resolution , thin reservoir

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