P007 The Role of Pore Shape to Control Vp-Vs Relation F. Tsuneyama* (Idemitsu Oil & Gas Co. Ltd) SUMMARY I investigate the Vp-Vs trend of reservoir rocks in terms of pore shape. The general trend of sandstone is represented well by the modified Mavko equation. The linear regression for sandstone by Castagna et al. (1993) is one of the representatives of packed quartz grains. The stiffness of pore controls the data location in the velocity-porosity plane. The stiffest pore shape a sphere gives a modified upper Hashin- Shtrikman bound: the lowest Vp/Vs bound. Likewise the softest pore a flat layer


Article metrics loading...

Loading full text...

Full text loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error