2004 BP velocity estimation benchmark model

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Overview

This model was created by Frederic Billette and Sverre Brandsberg-Dahl as a blind test for the Velocity workshop at the 66th EAGE international meeting in Paris, France, in June 2004. The left side of the model is based on a geological cross section through the Western Gulf of Mexico. The central part the model is a simplified representation of geologic features in the Eastern/Central Gulf of Mexico and off-shore Angola. The right side of the model is a composite representation of velocity issues encountered in the Caspian Sea, North Sea or Trinidad. The model is popular for benchmarking prestack depth migration, especially reverse time migration.

Bpvelanal2004_Central_shot_674.gif

Bpvelanal2004 Central shot 674.gif
2004bp Zero offset section.gif
2004 Vel 6.25m.gif


How to obtain a copy of the data

The easiest way to obtain a copy of the 2-D synthetic is to use the [Madagascar processing scripts below] or the links below.

Terms of use

By using these data, you agree to the following disclaimer:
NO WARRANTIES YOU ACCEPT ALL THE MATERIALS PROVIDED "AS IS". YOU ASSUME ALL RESPONSIBILITY FOR THE RESULTS OR USE OF THE MATERIALS. BP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND INCLUDING, BUT NOT LIMITED TO, THE ACCURACY, RELIABILITY, OR USABILITY OF THESE MATERIALS. ANY USE THAT YOU MAKE OF THE MATERIALS IS AT YOUR OWN RISK.
DISCLAIMER BP PROVIDES NO WARRANTIES TO YOU, EXPRESSED, IMPLIED OR STATUTORY, INCLUDING ANY IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE.
DAMAGE WAIVER IN NO EVENT WILL BP BE LIABLE FOR ANY DAMAGES, INCLUDING DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF ANYONE'S USE OF OR INABILITY TO USE THESE MATERIALS, OR ANY COPIES PREPARED FROM THESE MATERIALS, EVEN IF BP HAS BEEN ADVISED AS TO THE POSSIBILITY OF SUCH DAMAGES.
REDISTRIBUTION YOU AGREE THAT IF YOU SHARE ANY OR ALL OF THIS DATA WITH ANY OTHER PERSON OR ORGANIZATION, YOU WILL ALSO INCLUDE ALL OF THE ASSOCIATED DOCUMENTATION ORIGINALLY INCLUDED WITH THE DATA AND PROVIDED TO YOU, INCLUDING THIS NOTICE, AND THAT THE RECEIVING PARTY ALSO AGREES TO ABIDE BY THESE TERMS AS A CONDITION OF ITS USE. IF THE DATA THAT YOU PASS ON HAS BEEN MODIFIED IN ANY WAY FROM ITS ORIGINALLY DISTRIBUTED STATE, THE MODIFICATION MUST BE DOCUMENTED, AND THAT DOCUMENTATION INCLUDED ALONG WITH THE DATA.

Madagascar processing scripts

If you have installed the Madagascar development release, you have scripts to download and display the data. You may need to update your copy of the Madagascar installation to ensure you have contents added after March 2015. To update your copy of Madagascar enter this dialog into a terminal window:

cd $RSFSRC/book/data
svn update

To run the processing scripts enter this dialog into a terminal window:

cd bpvelanal2004/fetch
scons view

Download data clicking links or command line wget

Either click on the hypertext links, or paste the wget commands into a unix terminal window:
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/shots0001_0200.segy.gz
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/shots0201_0400.segy.gz
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/shots0401_0600.segy.gz
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/shots0601_0800.segy.gz
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/shots0801_1000.segy.gz
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/shots1001_1200.segy.gz
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/shots1201_1348.segy.gz
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/density_z6.25m_x12.5m.segy.gz
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/vel_z6.25m_x12.5m_exact.segy.gz
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/vel_z6.25m_x12.5m_lw.segy.gz
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/vel_z6.25m_x12.5m_nosalt.segy.gz
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/vel_z6.25m_x12.5m_saltindex.segy.gz
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/vel_z6.25m_x12.5m_wbindex.segy.gz
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/2004_Benchmark_READMES.pdf
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/README_Modification
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/central_shot_674.gif
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/eage_abstract.pdf
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/vel_6.25m.gif
wget http://s3.amazonaws.com/open.source.geoscience/open_data/bpvelanal2004/zero_offset_section.gif