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| A COMPARISON OF THE APPLICATION EFFECTS OF SEVERAL PRESTACK DEPTH MIGRATION TECHNIQUES |
| HUANG Yuan-yi1, LUO Ren-ze1, WANG Jin-hai2, ZHANG Min3, LI Ai-jun4, ZHANG Wei5, TAN Tao6 |
1. Graduate School,South-West Petroleum University,Chengdu 610500,China;
2. Sichuan Petroleum Geophysical Prospecting Company,CNPC Chuanqing Drilling Engineering Co.Ltd.,Chengdu 610213,China;
3. TianJin Institute of Geotechnical Investigation & Surveying ,Tianjin 300191,China;
4. Xinjiang Traning Center of Exploration and Development,Urumqi 830000,China;
5. Kuche Tarim Oil Field Exploration and Development Project Manager for the Department,Korla 841000,China;
6. China Southwest Oil and Gas Field Company,Sichuan Oil and Gas,Suining 629000,China |
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Abstract Based on reviewing the development of prestack depth migration, this paper has summed up several current prestack depth migration techniques, i.e., Kirchhoff integration, wave equation, and reverse-time migration. On the basis of analyzing the prestack depth migration imaging method in such aspects as wavefield, applicability, sensitivity of the near-surface condition and existing problems, the authors made a comparative study of different migration imaging results by comparing the migration sections, indicated the development orientation of the prestack depth migration and put forward some proposals for further study of prestack depth migration.
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Received: 03 November 2010
Published: 15 December 2011
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