[OpendTect_Users] Attribute on 2D data

[Paul de Groot]

Hello Pouyan,

The vertical character of similarity type of attributes is quite typical.
These attributes look much better on (3D) time-slices than on sections. You
can try reducing the time window but results will become more noisy and
faults may start to break up resulting in a staircase pattern on vertical
sections. If you have access to the dip-steering plugin you can compute the
dip of the similarity attribute (how to do this requires a bit of an
effort) and use this dip-steering cube to filter your data e.g. with a
median filter. With the right parameters and filters you could get fault
attributes that better honor your data.

For more information on filters and parameter settings I recommend viewing
this webinar on the subject:


On Fri, Nov 16, 2012 at 7:13 AM, Pouyan Ebrahimi
<pouyan.ebrahimi at gmail.com>wrote:

> Dear Friends;
>
> I extracted some attribute (from 2d seismic data)
> regarding sharpening faults/fractures.
>
> As it is decided in attached file, attribute show all fractures as
> vertical lines! But in original data, without using any attribute, some
> tilted faults are shown.
>
> What should I do to get real fault/fracture lines instead of just vertical
> ones?
>
> PS: I precisely steered the data.
> Original Output: seismic 2D
> Output of Attribute: 2 and 10
>
> Your response is appreciated in advance.
> Pouyan
>
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-- 
*Paul de Groot
President
dGB Earth Sciences, Nijverheidstraat 11-2, 7511 JM Enschede, The
Netherlands.
Tel. +31 53 43 15 155, Fax +31 53 43 15 104.
paul.degroot at dgbes.com, www.dgbes.com, www.opendtect.org.

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