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Analysis of Sensitive Factors Affecting Pre-stack Simultaneous Inversion
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 76th EAGE Conference and Exhibition 2014, Jun 2014, Volume 2014, p.1 - 5
Abstract
Summary
It is effective to discriminate lithology and fluids using rock properties inverted by pre-stack simultaneous inversion. We try to determine what the key factors for a successful pre-stack inversion are. Sensitivity tests are performed on 2D Marmousi2 dataset and 3D marine dataset. The sensitivity tests show the pre-stack AVA inversion is very sensitive to SNR of gathers, residual moveout, seismic wavelet and initial low-frequency model. We present some methods to alleviate these influences and improve the reliability of pre-stack AVA inversion.
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