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| Residual static correction based on traveltime decomposition in multiple time windows |
| PAN Shu-lin1, GAO Lei2, WU Bo3, YIN Cheng1, FU Li-rong4 |
1 School of Resources and Environment Engineering,Southwest Petroleum University,Chengdu,Sichuan 610500,China;
2 School of Computer Science(Software School),Southwest Petroleum University,Chengdu,Sichuan 610500,China;
3 Deyang Branch,Southwest Exploration and Production Research Institute,Sinopec,Deyang,Sichuan 618000,China;
4 Sichuan Geophysical Research Center,CNPC Chuanqing Engineering Company Limited,Chengdu,Sichuan 618000,China |
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Abstract In complex areas data processing,residual normal moveout cannot be ignored as residual normal moveout and residual statics impact seismic data imaging.In this work we propose a residual static correction approach based on traveltime decomposition in multiple time windows.First,we convert the residual normal moveout to the velocity error function.Then by decomposing the traveltime in multiple time windows we get statics on shot points and receiver points,as well as velocity errors.We apply velocity errors for residual normal moveout in the corresponding windows.Finally we apply residual static correction on shot points and receiver points.Real data examples show that this method is effective on residual static correction in complex areas.
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Received: 10 January 2010
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2011, Vol. 46 
