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| THE APPLICATION OF ITERATIVE REFRACTION STATIC CORRECTION TECHNIQUE TO SEISMIC DATA PROCESSING IN NORTH ORDOS AREA |
| XU Dong-mei1, QU An-jiang2, Feng He-ping1, Yan Li-zhi1 |
1. Geophysical Research Institute of North China Branch Company, SINOPEC,Xinxiang 453700,China;
2. Xinjiang Geophysical and Geochemical Surveying Party,Xinjiang Beauro of Geology and Mineral Resources,Changji 831100, China |
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Abstract Given the velocity of low velocity layer (direct wave) and by means of the first break information of production shots and the static correcting mathematical model based on the weighted least squares and conjugate gradient method, we can calculate the static correction values of the long and the short wavelengths on the basis of iterative algorithm. This technique is obviously effective in solving the unreal minor structures in north Ordos basin.
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Received: 10 January 2005
Published: 24 June 2005
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