Seismic Unix-Velocity Analysis Problem

[Nightwolf]

Hi everybody!

I am using seismic unix, and when I do velocity analysis, my semblance plot's time goes down 0.6s. On the other hand, my CMP constant velocity stacks and CMP gather plots' time goes down 3.34s. If I am not wrong, my semblance time must be the same value (3.34s) like constant velocity stacks and CMP gather plots. Probably, I am picking velocities wrong because of this 0.6s value.

Why am I facing this issue? I added the screenshot.

Thanx...

[Da_Rave]

Nightwolf - I thing you should also check the trace values for OFFSET and AOFFSET in your trace data. The offset axis on your displays only shows a value of 0 - and this could be a big problem.
I hope this helps you get the velocity analysis part working.
Da_Rave

[Nightwolf]

Nightwolf - I thing you should also check the trace values for OFFSET and AOFFSET in your trace data. The offset axis on your displays only shows a value of 0 - and this could be a big problem.
I hope this helps you get the velocity analysis part working.
Da_Rave

Hey Da_Rave

Thank you for replying. I solved 0.6s problem another way, just putting some things inside of the semblance plot part in the iva_S.sh script.