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| Preserved amplitude prestack depth migration based on 2D deconvolution imaging condition |
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KONG Xue1, LI Zhen chun1, YE Yue ming2, HUANG Jian ping1, GUO Qian1
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(1.School of Geosciences in China University of Petroleum, Qingdao 266555, China;2.Hangzhou Research Institute of Geology, PetroChina, Hangzhou 310023, China)
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| Abstract: |
| In order to adapt for the exploration and development of complex structures and lithologic hydrocarbon reservoirs, a preserved amplitude prestack depth migration method based on 2D deconvolution imaging condition was presented, implementing preserved amplitude split step Fourier prestack depth migration based on 2D deconvolution imaging condition. First, the receiver wavefield was deconvolved by the source wavefield in shot time dimensions. Then the zero lag results were extracted to form the imaging profile commanding the consistency of time and shot position. The numerical results show that this method not only enhances the imaging energy of weak imaging areas where the folds are not full, but also improves the imaging quality of deep target layers. |
| Key words: 2D deconvolution imaging condition pre stack depth migration |
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