Calculation of P-Wave Velocity in Sandstones with Different Pore Size Distributions Using Digital Rock Model without Segmentation

Calculation of elastic wave velocity using digital rock models is a powerful method to understand physical properties rocks. However, one difficulty the approach construct proper model due uncertainty by segmentation process X-ray CT image. Recently, segmentation-less has been proposed avoid uncertainty, and shown be useful in application Berea sandstone. In this study, we assessed through Shirahama sandstone addition sandstone, confirmed whether can applied other types sandstones. We also compared two different rock-physics obtain model. Our results showed that successfully as well when pore diameter sample smaller than spatial resolution image, found correction required mapping number density. would applying