Abstract:In this paper, we present an example of using PP and PS converted-wave data recorded by digital MEMS (micro-eletro-mechanical-system) to evaluate a fractured tight gas reservoir from the Xinchang gas field in Sichuan China. For this, we analyze the variations in converted shear-wave splitting, Vp/Vs ratio and PP and PS impedance, as well as other attributes based on absorption and velocity dispersion. The reservoir formation is tight sandstone, buried at a depth of about 5000m, and the converted-wave data reve… Show more
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