I am have a situation where I have subsurface seismic velocity windows at certain Depth points. In the window I have been given the two-way time in seconds and root mean square velocity (Vrms). I have used the DIX equation to convert Vrms into interval velocity (Vint) but i need average velocity for depth conversion i.e time into depth.

I am giving you the data at a particular CDP. Please tell me the relationship that can be made between the given quantities to find the required (average velocity).

time----Vrms----Vint

0-----1500----1940

0.31----1940----2058

0.62----2000----2510

0.85----2150----3821

0.97----2420----3312

1.15----2580----5403

1.23----2850----4399

1.35----3020----4353

1.96----3490----5286

2.57----3990----5403

5------4730