Loading a few 3D surveys into one project

[Anatoliy Zhadan]

Hi!
Unfortunately in the help for OpendTect, I did not find an answer to the question about the option to load a few 3D surveys into one project. It can be done? Or one cube - one project?
Do I need to manually enlarge the frames of the survey coordinates? Because if I load subsequently, the frames of the survey coordinates remain the same as those of the first cube and subsequent cubes are loaded only within these limits.

regards
Anatoliy.

[Mark Crawford]

Hi Anatoliy,

Here's a method that should work for you:

How to load multiple 3D volumes

Create separate OpendTect surveys - one per 3D cube. Open the main one (which shall cover the whole area of all intended surveys), and then you can import the 3D cubes from other surveys into this big one by using the 'From other survey' option under Import CBVS cube. This option will perform a transformation (if necessary) on the imported cube to the correct one for the survey into which it is being imported. If you noticed that the survey transformations differ slightly, then we recommend using the Nearest Trace algorithm. If the differences are big, it's better to opt for Sinc interpolation. Coordinate system of all surveys was the same, so I am not sure if it can do transformation in this case though. And be aware that Inline - x-line will be re-numbered.

As you say, manually enlarging the 'main' survey ranges may be necessary.

You may find this UserDoc entry useful for that.

I hope this helps you achieve what you want.

If not, or if you have any other questions, then just get back to me.

Kind regards,

Mark

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Kind regards,

Mark

Mark Crawford

Support Manager

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[Anatoliy Zhadan]

Ok, thank you very much

[Nick Prina]

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