Difference between revisions of "Open data"

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== Synthetic Gravity and Magnetic data ==
 
== Synthetic Gravity and Magnetic data ==
 
=== [[ Bishop Model]] ===
 
=== [[ Bishop Model]] ===
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[[Category:Open data]]

Revision as of 14:26, 1 November 2012

Dictionary entry for Open data (edit)

Open datasets are explicitly and clearly licensed for use by anyone without permission from the rights holder. The purpose may or may not be restricted by the terms of the license — common exclusions are 'attribution' and 'non-commercial', though some people do not consider 'non-commercial' restricted data to be open sensu stricto. Public domain datasets are unrestricted in use or range, and have no license.

Introduction to the SEG Open Data Gateway

There is geophysical data you can download from the internet or request to be shipped to you. This wiki documents data that is readily available. Key parts of the data documentation are:

  • a descriptive overview of the data including types of data available
  • terms of use
  • how to obtain a copy of the data
  • how to obtain other support data
  • links to publications

2D Land Seismic Data

ALASKA 2D LAND LINE 31-81

2D land data from the National Petroleum reserve Alaska. This is a short line with small statics. There is ground roll and noise bursts, but there is also good signal. Data includes unprocessed prestack data, final stack, and images of previous stack. Scripts for processing with Seismic Unix are available. This is a good line to start experimenting with open data and Seismic Unix (su) because there is a full processing sequence including data download, reformat, header loading, gain, prestack fk filter, brute velocity estimation, brute stack, residual statics, final velocity analysis, final stack, and two types of post stack migration (phase shift and Kirchhoff). In comes with executables for su release 43R1 on Linux, which is handy if su is not installed on your system. This data is provided by USGS.

ALASKA 2D LAND LINE 16-81

2D land data from the National Petroleum reserve Alaska. This line intersects 31-81 and the processing sequence is the same as used for 31-81. Seismic Unix scripts and a poster are available. The ground roll is weaker and there are fewer noise bursts. There is a larger statics problem and more structure between 1 and 2 seconds than on line 31-81. This data is provided by USGS.

2D Marine Seismic Data

US EAST COAST DEEP WATER LINE 32

This 242 km line is collected from a water depth of over 5 seconds to less than .3 seconds. There are strong multiples, diffractors, and a bottom simulating reflector related the the gas hydrate. This data is provided by USGS.

3D Land Seismic Data

TEAPOT DOME 3D SURVEY

A land 3D data set from Wyoming. Post stack data, well logs, production history, and GIS data can be downloaded from the internet after obtaining an FTP password. Unprocessed prestack data available by mail. This data is provided by RMOTC and the U.S. Department of Energy

3D Marine Seismic Data

NORTH SEA GULFAKS 3D

Read the SEG Foundation News about the launch of IQ Earth: [1]


Synthetic Seimic data

SEG MODELS

BP VELOCITY ESTIMATION BENCHMARK MODEL

Links to the data set pages are at:[2]

Seismic Data from Forel's book

Synthetic Gravity and Magnetic data

Bishop Model