Full text loading...
-
A New Rock Physics Model Integrating Diagenesis and Pore Shape and its Application
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 74th EAGE Conference and Exhibition incorporating EUROPEC 2012, Jun 2012, cp-293-00268
- ISBN: 978-90-73834-27-9
Abstract
S-wave velocity plays an important role in seismic modeling, AVO analysis and fluid identification. However, realistic well logging data lacks of S-wave information, so S-wave velocity prediction become a focus in rock physics research. Integrating differential effective medium (DEM) model and Pride model, a new rock physics model which is used to calculate dry rock moduli is proposed in this paper. The new rock physics model integrates effects of pore shape and diagenesis to bulk modulus and shear modulus of dry rock, so it is more rational and accurate. At the same time, combining Gassmann theory, P-wave and S-wave velocities model of fluid saturated rock is established. The model is applied to S-wave velocity prediction of realistic well logging data. The predicted results demonstrate that S-wave velocity prediction based on the new rock physics model proposed in this paper is effective.