摘要：Seismic wave reflection energy is related to the reservoir parameters such as porosity and fluid saturation, for years, geophysicists have noticed that low-frequency seismic anomalies always associated with hydrocarbon reservoirs. In this abstract, we studied characteristics of the magnitude and phase angle of NI, and the AVO gradient, intercept and their sum of squares from an interface between a nondispersive medium and a dispersive medium. We consider the relations between porosity, permeability, dry-rouck moduli, shallow and deep reservoir condition, which will represent a more realistic situation. High porosity will lead to larger AVO gradient but lower intercept. Compared to porosity variation the frequency variation is insensitive. As for partial saturation, when the water saturation is lager than 0.4, the AVO attributes present a dispersion at seismic frequencies, especially shallow reservoirs. The measurements of the AVO gradient, intercept and their sum of squares, with the constraint of frequency provide a potential way to predict the fluids saturation quantitatively.

发表日期：2016-01-01

期刊分区（SCI为中科院分区）：无

收录情况：国际学术会议论文集

发表期刊名称：EAGE Conf. Exhib.: Effic. Use Technol. - Unlocking Potential

参与作者：Li, X.Y.

通讯作者：张晟

第一作者：陈双全

论文类型：会议论文

论文概要：张晟,陈双全,Li, X.Y.，Poroelastic analysis of AVO attributes - Effects of inhomogeneous rock properties based on rock physics model，EAGE Conf. Exhib.: Effic. Use Technol. - Unlocking Potential，2016，

论文题目：Poroelastic analysis of AVO attributes - Effects of inhomogeneous rock properties based on rock physics model