4D Seismic in Carbonates: From Rock Physics to Field Examples

We have carried out 4D seismic research on two giant carbonate fields in Abu Dhabi, UAE, employing an integrated<br>approach. Our work process started from fundamental rock physics analysis. The Xu-White rock physics model, originally<br>designed for clastic rocks, was extended to carbonates. With this model, we characterized the reservoir interval by different<br>(geophysical) pore types, related them to petrophysical (sedimentalogical) pore types, and performed log conditioning to<br>improve well to seismic ties. Laboratory ultrasonic measurements of core plugs and log analysis were conducted in<br>combination with the rock physics model to examine the fluid and pressure sensitivities.