[OpendTect_Users] Question

[Crepin Eric Bouanga]

Dear Dan,

> I have a question about working with 2-d horizons when you have 
> several 2-d lines in a survey.  Should I use the same horizon name on 
> each line when tracking the horizon?  When I do this, I see all the 
> lines that I have traced in the 3-d scene which can be a little 
> confusing if not displaying all the seismic lines at once.  But, if I 
> use a different name for each line can I then derive a 3-d horizon 
> from the 2-d horizons?
>

You can of course use different 2d horizon name for each line, but if 
you want to convert these lines (which have the same geological meaning, 
i.e. same tracking event) to 3d horizon it is then better to have one 2d 
horizon for all lines. If you are confused to see them all, just use the 
option "display only at section" (2d horizon > right-click >display only 
at section).
As soon as a 2D horizon (one name) is tracked, a 3D horizon can be 
derived by right-clicking the 2D horizon in the tree and choose /Derive 
3D horizon./
A window pops up in which you can select the algorithm (inverse distance 
interpolation, triangulation, GMT). The results can be displayed 
immediately by selecting the /Display after generation/ option.

For more detailed information on 2d horizon and conversion to 3d, please 
see the links below:

http://opendtect.org/rel/doc/User/base/chapter4.7_2d_horizon.htm#LINK-TREE.2D.HORIZON

http://opendtect.org/rel/doc/User/base/chapter4.6_horizon.htm#LINK-TREE.HORIZON.ALGO


Best regards,

Eric

-- 
/*
    Eric Bouanga, MSc.
    Geoscientist

    dGB Earth Sciences B.V.
    Nijverheidstraat 11-2, 7511 JM Enschede, The Netherlands
    Mailto: eric.bouanga at dgbes.com
    Tel: +31 534315155 / Fax: +31 534315104
    http://www.dgbes.com
    Skype: ericb_dgb
*/

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