[OpendTect_Users] Well logs and neural networks.

[Gordon, Andres Cesar]

Hi Alex, I did in the past and work very fine for me but you need several wells in the area and several logs.
You need to have a neural network software and you need to train the network using several logs in wells that you have sonic (for example, SP, GR, DENSITY, NPHI, PEF, SONIC, RESISTIVITIES) and all the existing logs that are present in all the wells. After training the network, you can apply the found relationship to the unknown well. If you have many wells to train and several logs in those wells this methodology works fine
Regards
Andres


-----Original Message-----
From: users-bounces at opendtect.org [mailto:users-bounces at opendtect.org] On Behalf Of Alex Antunes
Sent: quarta-feira, 27 de julho de 2011 11:14
To: users at opendtect.org
Subject: [OpendTect_Users] Well logs and neural networks.

Hello everybody,

I'm needing to compute a sonic log in a well that doesn't have it, but I don't want to use the Gardner's approximation.

I think that this is possible to perform by using the neural networks in OpendTect, using a sonic log plus a set of other logs from a reference well, but I didn't find any tip on it in the OD documentation.

Does anyone know how to do it?

Regards,

Alex Antunes.

Prof. Alex Francisco Antunes
Geologia Estrutural e Interpretação Sísmica Laboratório de Geologia e Geofísica de Petróleo Depto. Geologia - Prog. Pós-Grad. Geodinâmica e Geofísica / UFRN



_______________________________________________
Users mailing list
Users at opendtect.org
http://lists.opendtect.org/mailman/listinfo/users
******************************************************************
THIS E-MAIL AND ANY MATERIALS TRANSMITTED WITH IT MAY CONTAIN CONFIDENTIAL OR PROPRIETARY MATERIAL FOR THE SOLE USE OF THE INTENDED RECIPIENT. ANY REVIEW, USE, DISTRIBUTION OR DISCLOSURE BY OTHERS IS STRICTLY PROHIBITED. IF YOU ARE NOT THE INTENDED RECIPIENT, OR AUTHORIZED TO RECEIVE THE INFORMATION FROM THE RECIPIENT, PLEASE NOTIFY THE SENDER BY REPLY E-MAIL AND DELETE ALL COPIES OF THIS MESSAGE.
******************************************************************