Abstract
With the development of reservoir geophysics, one of the major problems is no longer just to determine the external geometry of the reservoir, but also to assess its internal variability. The final aim is to extract lithological and petrophysical information from seismic data. This raises a lot of problems. Two of them are the scale of seismic measurement and the fact that generally seismic amplitudes are noisy.
One of the models currently used by geophysicists is the following one:
The amplitudes are the vertical convolution of the reflexion coefficients with the signal. The noise is not correlated with amplitudes nor is it correlated horizontally.
In this paper we will show how geostatistics can work under these hypotheses, mainly to filter out noise from seismic information. After presenting the method, we will discuss how to test the model and to infer the parameters. Studies have been carried out on one seismic section. The model appears to be a good approximation, and we show different ways to infer the parameters so as to have a good confidence in the result.
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© 1993 Kluwer Academic Publishers
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Zhang, Z., Galli, A. (1993). Getting Better Quality Seismic Sections. In: Soares, A. (eds) Geostatistics Tróia ’92. Quantitative Geology and Geostatistics, vol 5. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1739-5_24
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DOI: https://doi.org/10.1007/978-94-011-1739-5_24
Publisher Name: Springer, Dordrecht
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