[OpendTect_Users] Interval Velocity Conversion

[Mick]

Hi Colin

I would use the time-depth conversion option (Section 7.1.3 in the manual)
for doing this.

 

Without the velocity model builder plugin you can still make velocity
volumes and do depth conversions. Without going into the full details the
way I do it is:

 

-          Import velocity functions

-          Use volume builder to grid the functions and make a 3D volume

-          Make an average velocity volume and / or interval velocity volume

-          Time-depth conversion

 

You already have a velocity volume so all you need is the last step.

 

Mick

 

PS you may need lots of RAM

From: users-bounces at opendtect.org [mailto:users-bounces at opendtect.org] On
Behalf Of Colin Hawke
Sent: Wednesday, 25 April 2012 6:25 PM
To: OPENDTECT USERS
Subject: [OpendTect_Users] Interval Velocity Conversion

 

Dear Users,

I have been given a 3D PSDM Interval Velocity volume in SEGY format in depth
with 5m sampling. I need this velocity model in two-way-time with 4ms
sampling. Is there a way of converting from Depth to Time in Opendtect
without using the Velocity Modelling plug-in (I don't have this plug-in)?
I'm quite familiar with OD but can't seem to work this out.

Any help appreciated.

Thanks 

Colin Hawke 

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