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THE RATIO OF THE PP‐ TO THE SS‐REFLECTION COEFFICIENT AS A POSSIBLE FUTURE METHOD TO ESTIMATE OIL AND GAS RESERVOIRS *
Author(s) -
MEISSNER R.,
HEGAZY M.A.
Publication year - 1981
Publication title -
geophysical prospecting
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 79
eISSN - 1365-2478
pISSN - 0016-8025
DOI - 10.1111/j.1365-2478.1981.tb00693.x
Subject(s) - reflection coefficient , reflection (computer programming) , porosity , mineralogy , fossil fuel , geology , optics , analytical chemistry (journal) , materials science , chemistry , physics , geotechnical engineering , chromatography , organic chemistry , computer science , programming language
A bstract On the basis of known relationships between various elastic moduli and porosity in a porous medium and of various parameters from well‐logs, the reflection coefficient for normal incidence of P‐waves is compared to that of S‐waves. If pores contain gas, the reflection coefficient in S is much smaller than that of P but shows large differences for different gas concentration in one of the two layers while the reflection coefficient in P is insensitive to the gas concentration. It is found that the ratio of the two reflection coefficients provides a powerful tool for discriminating between layers of different degrees of gas concentration and for the extension of the sensitivity of the bright‐spot technique to greater depths.