Q effects on thin-bed AVO/AVF analysis
2014
Summary Zoeppritz equations are the bases for traditional AVO analysis, which plays a significant role in oil and gas exploration. They are not however suitable for quantitative analysis of the amplitude response of thin-beds. In this paper, we analyzed the Q effects on thin-bed AVO/AVF responses in a dispersive system. Several interesting conclusions have been drawn. (1) If the thin-bed thickness and Q are both fixed, with increasing frequency, the Q effects on reflections (real parts) become stronger, while the Q effects on reflections (real parts) become weaker; (2) when the frequency and thin-bed thickness are fixed, with decreasing Q, the Q effects on both and become stronger; and (3), when the frequency and Q are fixed, the Q effects on the real parts of both and become stronger with thin-bed thinning. And Q also influences the imaginary parts of and , but these effects are weaker.
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